Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
b3adc24a | 2 | Copyright (C) 1998-2020 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" |
1ff6de03 | 28 | #include "ctf-api.h" |
252b5132 RH |
29 | |
30 | #include <time.h> | |
252b5132 RH |
31 | |
32 | #include "ld.h" | |
33 | #include "ldexp.h" | |
34 | #include "ldlang.h" | |
35 | #include "ldwrite.h" | |
36 | #include "ldmisc.h" | |
df2a7313 | 37 | #include <ldgram.h> |
252b5132 | 38 | #include "ldmain.h" |
b71e2778 | 39 | #include "ldfile.h" |
252b5132 RH |
40 | #include "ldemul.h" |
41 | #include "coff/internal.h" | |
42 | #include "../bfd/libcoff.h" | |
43 | #include "deffile.h" | |
99ad8390 NC |
44 | |
45 | #ifdef pe_use_x86_64 | |
46 | ||
47 | #define PE_IDATA4_SIZE 8 | |
48 | #define PE_IDATA5_SIZE 8 | |
49 | #include "pep-dll.h" | |
50 | #undef AOUTSZ | |
51 | #define AOUTSZ PEPAOUTSZ | |
52 | #define PEAOUTHDR PEPAOUTHDR | |
53 | ||
54 | #else | |
55 | ||
1069dd8d | 56 | #include "pe-dll.h" |
252b5132 | 57 | |
99ad8390 NC |
58 | #endif |
59 | ||
60 | #ifndef PE_IDATA4_SIZE | |
61 | #define PE_IDATA4_SIZE 4 | |
62 | #endif | |
63 | ||
64 | #ifndef PE_IDATA5_SIZE | |
65 | #define PE_IDATA5_SIZE 4 | |
66 | #endif | |
67 | ||
775cabad NC |
68 | /* This file turns a regular Windows PE image into a DLL. Because of |
69 | the complexity of this operation, it has been broken down into a | |
70 | number of separate modules which are all called by the main function | |
71 | at the end of this file. This function is not re-entrant and is | |
72 | normally only called once, so static variables are used to reduce | |
73 | the number of parameters and return values required. | |
b7a26f91 | 74 | |
99ad8390 | 75 | See also: ld/emultempl/pe.em and ld/emultempl/pep.em. */ |
775cabad NC |
76 | |
77 | /* Auto-import feature by Paul Sokolovsky | |
78 | ||
79 | Quick facts: | |
80 | ||
81 | 1. With this feature on, DLL clients can import variables from DLL | |
82 | without any concern from their side (for example, without any source | |
83 | code modifications). | |
84 | ||
85 | 2. This is done completely in bounds of the PE specification (to be fair, | |
396a2467 | 86 | there's a place where it pokes nose out of, but in practice it works). |
775cabad NC |
87 | So, resulting module can be used with any other PE compiler/linker. |
88 | ||
89 | 3. Auto-import is fully compatible with standard import method and they | |
90 | can be mixed together. | |
91 | ||
92 | 4. Overheads: space: 8 bytes per imported symbol, plus 20 for each | |
93 | reference to it; load time: negligible; virtual/physical memory: should be | |
94 | less than effect of DLL relocation, and I sincerely hope it doesn't affect | |
95 | DLL sharability (too much). | |
96 | ||
97 | Idea | |
98 | ||
99 | The obvious and only way to get rid of dllimport insanity is to make client | |
100 | access variable directly in the DLL, bypassing extra dereference. I.e., | |
396a2467 | 101 | whenever client contains something like |
775cabad NC |
102 | |
103 | mov dll_var,%eax, | |
104 | ||
105 | address of dll_var in the command should be relocated to point into loaded | |
106 | DLL. The aim is to make OS loader do so, and than make ld help with that. | |
107 | Import section of PE made following way: there's a vector of structures | |
108 | each describing imports from particular DLL. Each such structure points | |
396a2467 | 109 | to two other parallel vectors: one holding imported names, and one which |
775cabad NC |
110 | will hold address of corresponding imported name. So, the solution is |
111 | de-vectorize these structures, making import locations be sparse and | |
112 | pointing directly into code. Before continuing, it is worth a note that, | |
113 | while authors strives to make PE act ELF-like, there're some other people | |
114 | make ELF act PE-like: elfvector, ;-) . | |
115 | ||
116 | Implementation | |
117 | ||
118 | For each reference of data symbol to be imported from DLL (to set of which | |
119 | belong symbols with name <sym>, if __imp_<sym> is found in implib), the | |
120 | import fixup entry is generated. That entry is of type | |
53baae48 | 121 | IMAGE_IMPORT_DESCRIPTOR and stored in .idata$2 subsection. Each |
775cabad NC |
122 | fixup entry contains pointer to symbol's address within .text section |
123 | (marked with __fuN_<sym> symbol, where N is integer), pointer to DLL name | |
124 | (so, DLL name is referenced by multiple entries), and pointer to symbol | |
125 | name thunk. Symbol name thunk is singleton vector (__nm_th_<symbol>) | |
126 | pointing to IMAGE_IMPORT_BY_NAME structure (__nm_<symbol>) directly | |
00479ba8 | 127 | containing imported name. Here comes that "on the edge" problem mentioned |
775cabad NC |
128 | above: PE specification rambles that name vector (OriginalFirstThunk) |
129 | should run in parallel with addresses vector (FirstThunk), i.e. that they | |
130 | should have same number of elements and terminated with zero. We violate | |
396a2467 | 131 | this, since FirstThunk points directly into machine code. But in practice, |
370dfff4 | 132 | OS loader implemented the sane way: it goes through OriginalFirstThunk and |
775cabad NC |
133 | puts addresses to FirstThunk, not something else. It once again should be |
134 | noted that dll and symbol name structures are reused across fixup entries | |
135 | and should be there anyway to support standard import stuff, so sustained | |
136 | overhead is 20 bytes per reference. Other question is whether having several | |
137 | IMAGE_IMPORT_DESCRIPTORS for the same DLL is possible. Answer is yes, it is | |
138 | done even by native compiler/linker (libth32's functions are in fact reside | |
139 | in windows9x kernel32.dll, so if you use it, you have two | |
140 | IMAGE_IMPORT_DESCRIPTORS for kernel32.dll). Yet other question is whether | |
141 | referencing the same PE structures several times is valid. The answer is why | |
396a2467 | 142 | not, prohibiting that (detecting violation) would require more work on |
775cabad NC |
143 | behalf of loader than not doing it. |
144 | ||
99ad8390 | 145 | See also: ld/emultempl/pe.em and ld/emultempl/pep.em. */ |
b044cda1 | 146 | |
1579bae1 | 147 | static void add_bfd_to_link (bfd *, const char *, struct bfd_link_info *); |
b044cda1 | 148 | |
775cabad | 149 | /* For emultempl/pe.em. */ |
252b5132 | 150 | |
775cabad | 151 | def_file * pe_def_file = 0; |
252b5132 | 152 | int pe_dll_export_everything = 0; |
2927aaca | 153 | int pe_dll_exclude_all_symbols = 0; |
252b5132 RH |
154 | int pe_dll_do_default_excludes = 1; |
155 | int pe_dll_kill_ats = 0; | |
156 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
157 | int pe_dll_warn_dup_exports = 0; |
158 | int pe_dll_compat_implib = 0; | |
b044cda1 | 159 | int pe_dll_extra_pe_debug = 0; |
ce11ba6c | 160 | int pe_use_nul_prefixed_import_tables = 0; |
88183869 | 161 | int pe_use_coff_long_section_names = -1; |
522f09cd | 162 | int pe_leading_underscore = -1; |
dc9bd8c9 | 163 | int pe_dll_enable_reloc_section = 0; |
252b5132 | 164 | |
775cabad | 165 | /* Static variables and types. */ |
252b5132 RH |
166 | |
167 | static bfd_vma image_base; | |
252b5132 | 168 | static bfd *filler_bfd; |
198beae2 | 169 | static struct bfd_section *edata_s, *reloc_s; |
252b5132 | 170 | static unsigned char *edata_d, *reloc_d; |
1069dd8d | 171 | static size_t edata_sz, reloc_sz; |
2fa9fc65 | 172 | static int runtime_pseudo_relocs_created = 0; |
317ff008 | 173 | static bfd_boolean runtime_pseudp_reloc_v2_init = FALSE; |
252b5132 | 174 | |
775cabad | 175 | typedef struct |
5b8273bf | 176 | { |
e916811a | 177 | const char *name; |
5b8273bf NC |
178 | int len; |
179 | } | |
180 | autofilter_entry_type; | |
775cabad NC |
181 | |
182 | typedef struct | |
5b8273bf | 183 | { |
e916811a CF |
184 | const char *target_name; |
185 | const char *object_target; | |
5b8273bf NC |
186 | unsigned int imagebase_reloc; |
187 | int pe_arch; | |
188 | int bfd_arch; | |
189 | bfd_boolean underscored; | |
1b610c93 | 190 | const autofilter_entry_type* autofilter_symbollist; |
5b8273bf NC |
191 | } |
192 | pe_details_type; | |
193 | ||
e916811a | 194 | static const autofilter_entry_type autofilter_symbollist_generic[] = |
5b8273bf | 195 | { |
b92216aa | 196 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 197 | /* Entry point symbols. */ |
0112cd26 NC |
198 | { STRING_COMMA_LEN ("DllMain") }, |
199 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
200 | { STRING_COMMA_LEN ("_DllMainCRTStartup") }, | |
5b8273bf | 201 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
202 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
203 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
db86b2dc | 204 | { NULL, 0 } |
5b8273bf NC |
205 | }; |
206 | ||
e916811a | 207 | static const autofilter_entry_type autofilter_symbollist_i386[] = |
5b8273bf | 208 | { |
b92216aa | 209 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 210 | /* Entry point symbols, and entry hooks. */ |
0112cd26 | 211 | { STRING_COMMA_LEN ("cygwin_crt0") }, |
880383ca NC |
212 | #ifdef pe_use_x86_64 |
213 | { STRING_COMMA_LEN ("DllMain") }, | |
214 | { STRING_COMMA_LEN ("DllEntryPoint") }, | |
215 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
216 | { STRING_COMMA_LEN ("_cygwin_dll_entry") }, | |
217 | { STRING_COMMA_LEN ("_cygwin_crt0_common") }, | |
218 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry") }, | |
219 | #else | |
0112cd26 NC |
220 | { STRING_COMMA_LEN ("DllMain@12") }, |
221 | { STRING_COMMA_LEN ("DllEntryPoint@0") }, | |
222 | { STRING_COMMA_LEN ("DllMainCRTStartup@12") }, | |
223 | { STRING_COMMA_LEN ("_cygwin_dll_entry@12") }, | |
224 | { STRING_COMMA_LEN ("_cygwin_crt0_common@8") }, | |
225 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry@12") }, | |
226 | { STRING_COMMA_LEN ("cygwin_attach_dll") }, | |
1b610c93 | 227 | #endif |
0112cd26 NC |
228 | { STRING_COMMA_LEN ("cygwin_premain0") }, |
229 | { STRING_COMMA_LEN ("cygwin_premain1") }, | |
230 | { STRING_COMMA_LEN ("cygwin_premain2") }, | |
231 | { STRING_COMMA_LEN ("cygwin_premain3") }, | |
5b8273bf | 232 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
233 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
234 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
5b8273bf | 235 | /* Global vars that should not be exported. */ |
0112cd26 NC |
236 | { STRING_COMMA_LEN ("impure_ptr") }, |
237 | { STRING_COMMA_LEN ("_impure_ptr") }, | |
238 | { STRING_COMMA_LEN ("_fmode") }, | |
239 | { STRING_COMMA_LEN ("environ") }, | |
63e1777c | 240 | { STRING_COMMA_LEN ("__dso_handle") }, |
db86b2dc | 241 | { NULL, 0 } |
5b8273bf | 242 | }; |
b044cda1 | 243 | |
5b8273bf NC |
244 | #define PE_ARCH_i386 1 |
245 | #define PE_ARCH_sh 2 | |
246 | #define PE_ARCH_mips 3 | |
247 | #define PE_ARCH_arm 4 | |
ddb00039 | 248 | #define PE_ARCH_arm_wince 5 |
c6c37250 | 249 | |
522f09cd KT |
250 | /* Don't make it constant as underscore mode gets possibly overriden |
251 | by target or -(no-)leading-underscore option. */ | |
252 | static pe_details_type pe_detail_list[] = | |
775cabad | 253 | { |
c6c37250 | 254 | { |
99ad8390 NC |
255 | #ifdef pe_use_x86_64 |
256 | "pei-x86-64", | |
257 | "pe-x86-64", | |
258 | 3 /* R_IMAGEBASE */, | |
259 | #else | |
c6c37250 DD |
260 | "pei-i386", |
261 | "pe-i386", | |
262 | 7 /* R_IMAGEBASE */, | |
99ad8390 | 263 | #endif |
c6c37250 DD |
264 | PE_ARCH_i386, |
265 | bfd_arch_i386, | |
d74720d2 KT |
266 | #ifdef pe_use_x86_64 |
267 | FALSE, | |
268 | #else | |
5b8273bf | 269 | TRUE, |
d74720d2 | 270 | #endif |
5b8273bf | 271 | autofilter_symbollist_i386 |
c6c37250 | 272 | }, |
a6da4630 A |
273 | #ifdef pe_use_x86_64 |
274 | { | |
275 | "pei-x86-64", | |
276 | "pe-bigobj-x86-64", | |
277 | 3 /* R_IMAGEBASE */, | |
278 | PE_ARCH_i386, | |
279 | bfd_arch_i386, | |
280 | FALSE, | |
281 | autofilter_symbollist_i386 | |
282 | }, | |
283 | #endif | |
344a211f NC |
284 | { |
285 | "pei-shl", | |
286 | "pe-shl", | |
287 | 16 /* R_SH_IMAGEBASE */, | |
288 | PE_ARCH_sh, | |
289 | bfd_arch_sh, | |
5b8273bf NC |
290 | TRUE, |
291 | autofilter_symbollist_generic | |
344a211f NC |
292 | }, |
293 | { | |
294 | "pei-mips", | |
295 | "pe-mips", | |
296 | 34 /* MIPS_R_RVA */, | |
297 | PE_ARCH_mips, | |
298 | bfd_arch_mips, | |
5b8273bf NC |
299 | FALSE, |
300 | autofilter_symbollist_generic | |
344a211f NC |
301 | }, |
302 | { | |
303 | "pei-arm-little", | |
304 | "pe-arm-little", | |
305 | 11 /* ARM_RVA32 */, | |
306 | PE_ARCH_arm, | |
307 | bfd_arch_arm, | |
5b8273bf NC |
308 | TRUE, |
309 | autofilter_symbollist_generic | |
344a211f | 310 | }, |
7148cc28 NC |
311 | { |
312 | "pei-arm-wince-little", | |
313 | "pe-arm-wince-little", | |
314 | 2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */ | |
315 | PE_ARCH_arm_wince, | |
316 | bfd_arch_arm, | |
317 | FALSE, | |
318 | autofilter_symbollist_generic | |
319 | }, | |
5b8273bf | 320 | { NULL, NULL, 0, 0, 0, FALSE, NULL } |
c6c37250 DD |
321 | }; |
322 | ||
e916811a | 323 | static const pe_details_type *pe_details; |
c6c37250 | 324 | |
775cabad | 325 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
e916811a | 326 | static const autofilter_entry_type autofilter_liblist[] = |
775cabad | 327 | { |
0112cd26 NC |
328 | { STRING_COMMA_LEN ("libcegcc") }, |
329 | { STRING_COMMA_LEN ("libcygwin") }, | |
330 | { STRING_COMMA_LEN ("libgcc") }, | |
81b07b16 | 331 | { STRING_COMMA_LEN ("libgcc_s") }, |
0112cd26 NC |
332 | { STRING_COMMA_LEN ("libstdc++") }, |
333 | { STRING_COMMA_LEN ("libmingw32") }, | |
334 | { STRING_COMMA_LEN ("libmingwex") }, | |
335 | { STRING_COMMA_LEN ("libg2c") }, | |
336 | { STRING_COMMA_LEN ("libsupc++") }, | |
337 | { STRING_COMMA_LEN ("libobjc") }, | |
338 | { STRING_COMMA_LEN ("libgcj") }, | |
9d9c67b0 MS |
339 | { STRING_COMMA_LEN ("libmsvcrt") }, |
340 | { STRING_COMMA_LEN ("libmsvcrt-os") }, | |
341 | { STRING_COMMA_LEN ("libucrtbase") }, | |
db86b2dc | 342 | { NULL, 0 } |
b044cda1 | 343 | }; |
775cabad | 344 | |
81b07b16 DK |
345 | /* Regardless of the suffix issue mentioned above, we must ensure that |
346 | we do not falsely match on a leading substring, such as when libtool | |
347 | builds libstdc++ as a DLL using libsupc++convenience.a as an intermediate. | |
348 | This routine ensures that the leading part of the name matches and that | |
349 | it is followed by only an optional version suffix and a file extension, | |
350 | returning zero if so or -1 if not. */ | |
351 | static int libnamencmp (const char *libname, const autofilter_entry_type *afptr) | |
352 | { | |
42627821 | 353 | if (filename_ncmp (libname, afptr->name, afptr->len)) |
81b07b16 DK |
354 | return -1; |
355 | ||
356 | libname += afptr->len; | |
357 | ||
358 | /* Be liberal in interpreting what counts as a version suffix; we | |
359 | accept anything that has a dash to separate it from the name and | |
360 | begins with a digit. */ | |
361 | if (libname[0] == '-') | |
362 | { | |
363 | if (!ISDIGIT (*++libname)) | |
364 | return -1; | |
365 | /* Ensure the filename has an extension. */ | |
366 | while (*++libname != '.') | |
367 | if (!*libname) | |
368 | return -1; | |
369 | } | |
370 | else if (libname[0] != '.') | |
371 | return -1; | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
e916811a | 376 | static const autofilter_entry_type autofilter_objlist[] = |
775cabad | 377 | { |
0112cd26 NC |
378 | { STRING_COMMA_LEN ("crt0.o") }, |
379 | { STRING_COMMA_LEN ("crt1.o") }, | |
380 | { STRING_COMMA_LEN ("crt2.o") }, | |
381 | { STRING_COMMA_LEN ("dllcrt1.o") }, | |
382 | { STRING_COMMA_LEN ("dllcrt2.o") }, | |
383 | { STRING_COMMA_LEN ("gcrt0.o") }, | |
384 | { STRING_COMMA_LEN ("gcrt1.o") }, | |
385 | { STRING_COMMA_LEN ("gcrt2.o") }, | |
386 | { STRING_COMMA_LEN ("crtbegin.o") }, | |
387 | { STRING_COMMA_LEN ("crtend.o") }, | |
db86b2dc | 388 | { NULL, 0 } |
b044cda1 | 389 | }; |
775cabad | 390 | |
e916811a | 391 | static const autofilter_entry_type autofilter_symbolprefixlist[] = |
775cabad | 392 | { |
00479ba8 NC |
393 | /* _imp_ is treated specially, as it is always underscored. */ |
394 | /* { STRING_COMMA_LEN ("_imp_") }, */ | |
395 | /* Don't export some c++ symbols. */ | |
0112cd26 | 396 | { STRING_COMMA_LEN ("__rtti_") }, |
00479ba8 | 397 | { STRING_COMMA_LEN ("__builtin_") }, |
39cebe23 | 398 | /* Don't re-export auto-imported symbols. */ |
17f73277 | 399 | { STRING_COMMA_LEN ("__nm_") }, |
775cabad | 400 | /* Don't export symbols specifying internal DLL layout. */ |
0112cd26 | 401 | { STRING_COMMA_LEN ("_head_") }, |
b92216aa DS |
402 | { STRING_COMMA_LEN ("_IMPORT_DESCRIPTOR_") }, |
403 | /* Don't export section labels or artificial symbols | |
404 | (eg ".weak.foo". */ | |
405 | { STRING_COMMA_LEN (".") }, | |
db86b2dc | 406 | { NULL, 0 } |
b044cda1 | 407 | }; |
775cabad | 408 | |
e916811a | 409 | static const autofilter_entry_type autofilter_symbolsuffixlist[] = |
775cabad | 410 | { |
0112cd26 | 411 | { STRING_COMMA_LEN ("_iname") }, |
b92216aa | 412 | { STRING_COMMA_LEN ("_NULL_THUNK_DATA") }, |
db86b2dc | 413 | { NULL, 0 } |
b044cda1 CW |
414 | }; |
415 | ||
c6c37250 DD |
416 | #define U(str) (pe_details->underscored ? "_" str : str) |
417 | ||
418 | void | |
1579bae1 | 419 | pe_dll_id_target (const char *target) |
c6c37250 DD |
420 | { |
421 | int i; | |
775cabad | 422 | |
d643799d | 423 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
424 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
425 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 426 | { |
522f09cd KT |
427 | int u = pe_leading_underscore; /* Underscoring mode. -1 for use default. */ |
428 | if (u == -1) | |
429 | bfd_get_target_info (target, NULL, NULL, &u, NULL); | |
d74720d2 KT |
430 | if (u == -1) |
431 | abort (); | |
432 | pe_detail_list[i].underscored = (u != 0 ? TRUE : FALSE); | |
d643799d | 433 | pe_details = pe_detail_list + i; |
d74720d2 | 434 | pe_leading_underscore = (u != 0 ? 1 : 0); |
c6c37250 DD |
435 | return; |
436 | } | |
df5f2391 | 437 | einfo (_("%X%P: unsupported PEI architecture: %s\n"), target); |
c6c37250 DD |
438 | exit (1); |
439 | } | |
440 | ||
b7a26f91 | 441 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 442 | them out by pages. */ |
252b5132 | 443 | |
775cabad NC |
444 | typedef struct |
445 | { | |
446 | bfd_vma vma; | |
447 | char type; | |
448 | short extra; | |
08dec09d | 449 | int idx; |
775cabad NC |
450 | } |
451 | reloc_data_type; | |
c6c37250 | 452 | |
252b5132 | 453 | static int |
1579bae1 | 454 | reloc_sort (const void *va, const void *vb) |
252b5132 | 455 | { |
08dec09d AM |
456 | const reloc_data_type *a = (const reloc_data_type *) va; |
457 | const reloc_data_type *b = (const reloc_data_type *) vb; | |
775cabad | 458 | |
08dec09d AM |
459 | if (a->vma > b->vma) |
460 | return 1; | |
461 | if (a->vma < b->vma) | |
462 | return -1; | |
463 | if (a->idx > b->idx) | |
464 | return 1; | |
465 | if (a->idx < b->idx) | |
466 | return -1; | |
467 | return 0; | |
252b5132 RH |
468 | } |
469 | ||
470 | static int | |
1579bae1 | 471 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 472 | { |
1579bae1 AM |
473 | const def_file_export *a = va; |
474 | const def_file_export *b = vb; | |
7fcab871 KT |
475 | char *an = a->name; |
476 | char *bn = b->name; | |
477 | if (a->its_name) | |
478 | an = a->its_name; | |
479 | if (b->its_name) | |
480 | bn = b->its_name; | |
481 | ||
482 | return strcmp (an, bn); | |
252b5132 RH |
483 | } |
484 | ||
775cabad | 485 | /* Read and process the .DEF file. */ |
252b5132 RH |
486 | |
487 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
488 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 489 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
490 | |
491 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 492 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
493 | static int export_table_size; |
494 | static int count_exported; | |
495 | static int count_exported_byname; | |
496 | static int count_with_ordinals; | |
497 | static const char *dll_name; | |
498 | static int min_ordinal, max_ordinal; | |
499 | static int *exported_symbols; | |
500 | ||
775cabad NC |
501 | typedef struct exclude_list_struct |
502 | { | |
503 | char *string; | |
504 | struct exclude_list_struct *next; | |
e1c37eb5 | 505 | exclude_type type; |
775cabad NC |
506 | } |
507 | exclude_list_struct; | |
86b1cc60 | 508 | |
252b5132 RH |
509 | static struct exclude_list_struct *excludes = 0; |
510 | ||
511 | void | |
e1c37eb5 | 512 | pe_dll_add_excludes (const char *new_excludes, const exclude_type type) |
252b5132 RH |
513 | { |
514 | char *local_copy; | |
515 | char *exclude_string; | |
516 | ||
517 | local_copy = xstrdup (new_excludes); | |
518 | ||
519 | exclude_string = strtok (local_copy, ",:"); | |
520 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
521 | { | |
522 | struct exclude_list_struct *new_exclude; | |
523 | ||
1579bae1 AM |
524 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
525 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 526 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 527 | new_exclude->type = type; |
252b5132 RH |
528 | new_exclude->next = excludes; |
529 | excludes = new_exclude; | |
530 | } | |
531 | ||
532 | free (local_copy); | |
533 | } | |
534 | ||
00479ba8 NC |
535 | static bfd_boolean |
536 | is_import (const char* n) | |
537 | { | |
e916811a | 538 | return (CONST_STRNEQ (n, "__imp_")); |
00479ba8 | 539 | } |
70b0be79 | 540 | |
775cabad NC |
541 | /* abfd is a bfd containing n (or NULL) |
542 | It can be used for contextual checks. */ | |
543 | ||
252b5132 | 544 | static int |
1579bae1 | 545 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 | 546 | { |
98872a7c | 547 | def_file_export key; |
252b5132 | 548 | struct exclude_list_struct *ex; |
e916811a | 549 | const autofilter_entry_type *afptr; |
98872a7c NC |
550 | const char * libname = NULL; |
551 | ||
70b0be79 CF |
552 | if (abfd && abfd->my_archive) |
553 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 554 | |
98872a7c NC |
555 | key.name = key.its_name = (char *) n; |
556 | ||
557 | /* Return false if n is in the d->exports table. */ | |
558 | if (bsearch (&key, d->exports, d->num_exports, | |
6c19b93b | 559 | sizeof (pe_def_file->exports[0]), pe_export_sort)) |
98872a7c | 560 | return 0; |
775cabad | 561 | |
252b5132 RH |
562 | if (pe_dll_do_default_excludes) |
563 | { | |
663dd378 | 564 | const char * p; |
775cabad NC |
565 | int len; |
566 | ||
b044cda1 | 567 | if (pe_dll_extra_pe_debug) |
775cabad NC |
568 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
569 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
570 | |
571 | /* First of all, make context checks: | |
1579bae1 | 572 | Don't export anything from standard libs. */ |
658957db | 573 | if (libname) |
b044cda1 CW |
574 | { |
575 | afptr = autofilter_liblist; | |
775cabad | 576 | |
b044cda1 CW |
577 | while (afptr->name) |
578 | { | |
81b07b16 | 579 | if (libnamencmp (libname, afptr) == 0 ) |
b044cda1 CW |
580 | return 0; |
581 | afptr++; | |
582 | } | |
583 | } | |
584 | ||
775cabad | 585 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 586 | |
59d28a94 | 587 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 588 | { |
b7a26f91 KH |
589 | afptr = autofilter_objlist; |
590 | while (afptr->name) | |
59d28a94 | 591 | { |
b7a26f91 KH |
592 | if (strcmp (p, afptr->name) == 0) |
593 | return 0; | |
59d28a94 | 594 | afptr++; |
663dd378 | 595 | } |
775cabad | 596 | } |
b044cda1 CW |
597 | |
598 | /* Don't try to blindly exclude all symbols | |
599 | that begin with '__'; this was tried and | |
5b8273bf NC |
600 | it is too restrictive. Instead we have |
601 | a target specific list to use: */ | |
1b610c93 | 602 | afptr = pe_details->autofilter_symbollist; |
99ad8390 | 603 | |
b044cda1 CW |
604 | while (afptr->name) |
605 | { | |
606 | if (strcmp (n, afptr->name) == 0) | |
607 | return 0; | |
775cabad | 608 | |
b7a26f91 | 609 | afptr++; |
b044cda1 CW |
610 | } |
611 | ||
775cabad | 612 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
613 | afptr = autofilter_symbolprefixlist; |
614 | while (afptr->name) | |
615 | { | |
616 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
617 | return 0; | |
775cabad | 618 | |
b7a26f91 | 619 | afptr++; |
b044cda1 CW |
620 | } |
621 | ||
775cabad NC |
622 | /* Finally, exclude symbols ending with ... */ |
623 | len = strlen (n); | |
624 | afptr = autofilter_symbolsuffixlist; | |
625 | while (afptr->name) | |
626 | { | |
b7a26f91 | 627 | if ((len >= afptr->len) |
775cabad | 628 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
629 | && strncmp (n + len - afptr->len, afptr->name, |
630 | afptr->len + 1) == 0) | |
775cabad NC |
631 | return 0; |
632 | ||
b7a26f91 | 633 | afptr++; |
775cabad | 634 | } |
252b5132 | 635 | } |
775cabad | 636 | |
252b5132 | 637 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 | 638 | { |
e1c37eb5 | 639 | if (ex->type == EXCLUDELIBS) |
70b0be79 CF |
640 | { |
641 | if (libname | |
42627821 | 642 | && ((filename_cmp (libname, ex->string) == 0) |
70b0be79 CF |
643 | || (strcasecmp ("ALL", ex->string) == 0))) |
644 | return 0; | |
645 | } | |
e1c37eb5 DK |
646 | else if (ex->type == EXCLUDEFORIMPLIB) |
647 | { | |
42627821 | 648 | if (filename_cmp (abfd->filename, ex->string) == 0) |
e1c37eb5 DK |
649 | return 0; |
650 | } | |
70b0be79 | 651 | else if (strcmp (n, ex->string) == 0) |
658957db | 652 | return 0; |
70b0be79 | 653 | } |
775cabad | 654 | |
252b5132 RH |
655 | return 1; |
656 | } | |
657 | ||
658 | static void | |
c1711530 | 659 | process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
660 | { |
661 | int i, j; | |
662 | struct bfd_link_hash_entry *blhe; | |
663 | bfd *b; | |
198beae2 | 664 | struct bfd_section *s; |
d643799d | 665 | def_file_export *e = 0; |
98872a7c | 666 | bfd_boolean resort_needed; |
252b5132 RH |
667 | |
668 | if (!pe_def_file) | |
669 | pe_def_file = def_file_empty (); | |
670 | ||
671 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 672 | sections, and push those into the def file too. */ |
c72f2fb2 | 673 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
674 | { |
675 | s = bfd_get_section_by_name (b, ".drectve"); | |
676 | if (s) | |
677 | { | |
eea6121a | 678 | long size = s->size; |
252b5132 | 679 | char *buf = xmalloc (size); |
775cabad | 680 | |
252b5132 RH |
681 | bfd_get_section_contents (b, s, buf, 0, size); |
682 | def_file_add_directive (pe_def_file, buf, size); | |
683 | free (buf); | |
684 | } | |
685 | } | |
686 | ||
c1711530 DK |
687 | /* Process aligned common symbol information from the |
688 | .drectve sections now; common symbol allocation is | |
689 | done before final link, so it will be too late to | |
690 | process them in process_embedded_commands() called | |
691 | from _bfd_coff_link_input_bfd(). */ | |
692 | if (pe_def_file->aligncomms) | |
693 | { | |
694 | def_file_aligncomm *ac = pe_def_file->aligncomms; | |
695 | while (ac) | |
696 | { | |
697 | struct coff_link_hash_entry *sym_hash; | |
698 | sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
6c19b93b | 699 | ac->symbol_name, FALSE, FALSE, FALSE); |
c1711530 | 700 | if (sym_hash && sym_hash->root.type == bfd_link_hash_common |
6c19b93b | 701 | && sym_hash->root.u.c.p->alignment_power < (unsigned) ac->alignment) |
c1711530 DK |
702 | { |
703 | sym_hash->root.u.c.p->alignment_power = (unsigned) ac->alignment; | |
704 | } | |
705 | ac = ac->next; | |
706 | } | |
707 | } | |
708 | ||
2927aaca NC |
709 | /* If we are building an executable and there is nothing |
710 | to export, we do not build an export table at all. */ | |
0e1862bb | 711 | if (bfd_link_executable (info) && pe_def_file->num_exports == 0 |
2927aaca | 712 | && (!pe_dll_export_everything || pe_dll_exclude_all_symbols)) |
2b817be1 NC |
713 | return; |
714 | ||
86b1cc60 | 715 | /* Now, maybe export everything else the default way. */ |
2927aaca NC |
716 | if ((pe_dll_export_everything || pe_def_file->num_exports == 0) |
717 | && !pe_dll_exclude_all_symbols) | |
252b5132 | 718 | { |
c72f2fb2 | 719 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
720 | { |
721 | asymbol **symbols; | |
5c1d2f5f | 722 | int nsyms; |
252b5132 | 723 | |
5c1d2f5f AM |
724 | if (!bfd_generic_link_read_symbols (b)) |
725 | { | |
df5f2391 | 726 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); |
5c1d2f5f AM |
727 | return; |
728 | } | |
729 | ||
730 | symbols = bfd_get_outsymbols (b); | |
731 | nsyms = bfd_get_symcount (b); | |
252b5132 RH |
732 | |
733 | for (j = 0; j < nsyms; j++) | |
734 | { | |
d643799d | 735 | /* We should export symbols which are either global or not |
1579bae1 AM |
736 | anything at all. (.bss data is the latter) |
737 | We should not export undefined symbols. */ | |
45dfa85a AM |
738 | bfd_boolean would_export |
739 | = (symbols[j]->section != bfd_und_section_ptr | |
740 | && ((symbols[j]->flags & BSF_GLOBAL) | |
741 | || (symbols[j]->flags == 0))); | |
fd91d419 | 742 | if (link_info.version_info && would_export) |
6c19b93b AM |
743 | would_export |
744 | = !bfd_hide_sym_by_version (link_info.version_info, | |
745 | symbols[j]->name); | |
09e2aba4 | 746 | if (would_export) |
252b5132 RH |
747 | { |
748 | const char *sn = symbols[j]->name; | |
b044cda1 | 749 | |
775cabad | 750 | /* We should not re-export imported stuff. */ |
b044cda1 | 751 | { |
e916811a | 752 | char *name; |
00479ba8 | 753 | if (is_import (sn)) |
6c19b93b | 754 | continue; |
00479ba8 | 755 | |
e916811a | 756 | name = xmalloc (strlen ("__imp_") + strlen (sn) + 1); |
00479ba8 | 757 | sprintf (name, "%s%s", "__imp_", sn); |
775cabad | 758 | |
b044cda1 | 759 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 760 | FALSE, FALSE, FALSE); |
b044cda1 CW |
761 | free (name); |
762 | ||
b7a26f91 | 763 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
764 | continue; |
765 | } | |
766 | ||
00479ba8 | 767 | if (pe_details->underscored && *sn == '_') |
252b5132 | 768 | sn++; |
775cabad | 769 | |
b044cda1 CW |
770 | if (auto_export (b, pe_def_file, sn)) |
771 | { | |
db17156e | 772 | int is_dup = 0; |
b044cda1 | 773 | def_file_export *p; |
98872a7c | 774 | |
db17156e KT |
775 | p = def_file_add_export (pe_def_file, sn, 0, -1, |
776 | NULL, &is_dup); | |
775cabad | 777 | /* Fill data flag properly, from dlltool.c. */ |
db17156e | 778 | if (!is_dup) |
6c19b93b | 779 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
b044cda1 | 780 | } |
252b5132 RH |
781 | } |
782 | } | |
783 | } | |
784 | } | |
785 | ||
786 | #undef NE | |
787 | #define NE pe_def_file->num_exports | |
788 | ||
177b81d6 DK |
789 | /* Don't create an empty export table. */ |
790 | if (NE == 0) | |
791 | return; | |
792 | ||
98872a7c NC |
793 | resort_needed = FALSE; |
794 | ||
86b1cc60 | 795 | /* Canonicalize the export list. */ |
252b5132 RH |
796 | if (pe_dll_kill_ats) |
797 | { | |
798 | for (i = 0; i < NE; i++) | |
799 | { | |
31fd86f1 KT |
800 | /* Check for fastcall/stdcall-decoration, but ignore |
801 | C++ mangled names. */ | |
802 | if (pe_def_file->exports[i].name[0] != '?' | |
803 | && strchr (pe_def_file->exports[i].name, '@')) | |
252b5132 | 804 | { |
86b1cc60 | 805 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
806 | pointing to the same memory as name, or might not |
807 | have. */ | |
808 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 809 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
31fd86f1 | 810 | char *tmp_at = strrchr (tmp, '@'); |
775cabad | 811 | |
a8d701fd | 812 | if (tmp_at) |
6c19b93b | 813 | *tmp_at = 0; |
a8d701fd | 814 | else |
df5f2391 | 815 | einfo (_("%X%P: cannot export %s: invalid export name\n"), |
a8d701fd | 816 | pe_def_file->exports[i].name); |
252b5132 | 817 | pe_def_file->exports[i].name = tmp; |
6c19b93b | 818 | resort_needed = TRUE; |
252b5132 RH |
819 | } |
820 | } | |
821 | } | |
822 | ||
98872a7c NC |
823 | /* Re-sort the exports table as we have possibly changed the order |
824 | by removing leading @. */ | |
825 | if (resort_needed) | |
826 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), | |
6c19b93b | 827 | pe_export_sort); |
98872a7c | 828 | |
252b5132 RH |
829 | if (pe_dll_stdcall_aliases) |
830 | { | |
831 | for (i = 0; i < NE; i++) | |
832 | { | |
00479ba8 NC |
833 | if (is_import (pe_def_file->exports[i].name)) |
834 | continue; | |
835 | ||
252b5132 RH |
836 | if (strchr (pe_def_file->exports[i].name, '@')) |
837 | { | |
db17156e | 838 | int is_dup = 1; |
1579bae1 | 839 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 840 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 841 | |
252b5132 | 842 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 843 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 844 | def_file_add_export (pe_def_file, tmp, |
b044cda1 | 845 | pe_def_file->exports[i].internal_name, |
db17156e KT |
846 | -1, NULL, &is_dup); |
847 | if (is_dup) | |
6c19b93b | 848 | free (tmp); |
252b5132 RH |
849 | } |
850 | } | |
851 | } | |
852 | ||
86b1cc60 KH |
853 | /* Convenience, but watch out for it changing. */ |
854 | e = pe_def_file->exports; | |
252b5132 | 855 | |
252b5132 RH |
856 | for (i = 0, j = 0; i < NE; i++) |
857 | { | |
858 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
859 | { | |
870df5dc | 860 | /* This is a duplicate. */ |
252b5132 RH |
861 | if (e[j - 1].ordinal != -1 |
862 | && e[i].ordinal != -1 | |
863 | && e[j - 1].ordinal != e[i].ordinal) | |
864 | { | |
870df5dc NC |
865 | if (pe_dll_warn_dup_exports) |
866 | /* xgettext:c-format */ | |
df5f2391 | 867 | einfo (_("%X%P: error, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 868 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
869 | } |
870 | else | |
871 | { | |
870df5dc NC |
872 | if (pe_dll_warn_dup_exports) |
873 | /* xgettext:c-format */ | |
df5f2391 | 874 | einfo (_("%P: warning, duplicate EXPORT: %s\n"), |
870df5dc | 875 | e[j - 1].name); |
252b5132 | 876 | } |
775cabad | 877 | |
486e80e2 | 878 | if (e[i].ordinal != -1) |
252b5132 RH |
879 | e[j - 1].ordinal = e[i].ordinal; |
880 | e[j - 1].flag_private |= e[i].flag_private; | |
881 | e[j - 1].flag_constant |= e[i].flag_constant; | |
882 | e[j - 1].flag_noname |= e[i].flag_noname; | |
883 | e[j - 1].flag_data |= e[i].flag_data; | |
6e230cc2 KT |
884 | if (e[i].name) |
885 | free (e[i].name); | |
886 | if (e[i].internal_name) | |
887 | free (e[i].internal_name); | |
888 | if (e[i].its_name) | |
889 | free (e[i].its_name); | |
252b5132 RH |
890 | } |
891 | else | |
892 | { | |
893 | if (i != j) | |
894 | e[j] = e[i]; | |
895 | j++; | |
896 | } | |
897 | } | |
898 | pe_def_file->num_exports = j; /* == NE */ | |
899 | ||
6e230cc2 KT |
900 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
901 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); | |
902 | ||
903 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); | |
904 | max_ordinal = 0; | |
905 | min_ordinal = 65536; | |
906 | count_exported = 0; | |
907 | count_exported_byname = 0; | |
908 | count_with_ordinals = 0; | |
909 | ||
252b5132 RH |
910 | for (i = 0; i < NE; i++) |
911 | { | |
e1fa0163 | 912 | char *int_name = pe_def_file->exports[i].internal_name; |
1579bae1 | 913 | char *name; |
41f46ed9 | 914 | |
4153b6db NC |
915 | /* PR 19803: Make sure that any exported symbol does not get garbage collected. */ |
916 | lang_add_gc_name (int_name); | |
917 | ||
e1fa0163 NC |
918 | name = xmalloc (strlen (int_name) + 2); |
919 | if (pe_details->underscored && int_name[0] != '@') | |
c6c37250 DD |
920 | { |
921 | *name = '_'; | |
e1fa0163 | 922 | strcpy (name + 1, int_name); |
67f101ee NC |
923 | |
924 | /* PR 19803: The alias must be preserved as well. */ | |
925 | lang_add_gc_name (xstrdup (name)); | |
c6c37250 DD |
926 | } |
927 | else | |
e1fa0163 | 928 | strcpy (name, int_name); |
252b5132 RH |
929 | |
930 | blhe = bfd_link_hash_lookup (info->hash, | |
931 | name, | |
b34976b6 | 932 | FALSE, FALSE, TRUE); |
252b5132 | 933 | |
8a5b676c | 934 | if (blhe |
d643799d | 935 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 936 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
937 | { |
938 | count_exported++; | |
939 | if (!pe_def_file->exports[i].flag_noname) | |
940 | count_exported_byname++; | |
8a5b676c DD |
941 | |
942 | /* Only fill in the sections. The actual offsets are computed | |
943 | in fill_exported_offsets() after common symbols are laid | |
944 | out. */ | |
d643799d | 945 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
946 | exported_symbol_sections[i] = blhe->u.def.section; |
947 | else | |
948 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 949 | |
75898d57 DK |
950 | if (pe_def_file->exports[i].ordinal != -1) |
951 | { | |
952 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
953 | max_ordinal = pe_def_file->exports[i].ordinal; | |
954 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
955 | min_ordinal = pe_def_file->exports[i].ordinal; | |
956 | count_with_ordinals++; | |
957 | } | |
958 | } | |
959 | /* Check for forward exports. These are indicated in DEF files by an | |
6c19b93b | 960 | export directive of the form NAME1 = MODULE-NAME.EXTERNAL-NAME |
75898d57 DK |
961 | but we must take care not to be fooled when the user wants to export |
962 | a symbol that actually really has a dot in it, so we only check | |
963 | for them here, after real defined symbols have already been matched. */ | |
e1fa0163 | 964 | else if (strchr (int_name, '.')) |
75898d57 DK |
965 | { |
966 | count_exported++; | |
967 | if (!pe_def_file->exports[i].flag_noname) | |
968 | count_exported_byname++; | |
969 | ||
970 | pe_def_file->exports[i].flag_forward = 1; | |
971 | ||
252b5132 RH |
972 | if (pe_def_file->exports[i].ordinal != -1) |
973 | { | |
974 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
975 | max_ordinal = pe_def_file->exports[i].ordinal; | |
976 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
977 | min_ordinal = pe_def_file->exports[i].ordinal; | |
978 | count_with_ordinals++; | |
979 | } | |
980 | } | |
981 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
982 | { | |
983 | /* xgettext:c-format */ | |
df5f2391 | 984 | einfo (_("%X%P: cannot export %s: symbol not defined\n"), |
e1fa0163 | 985 | int_name); |
252b5132 RH |
986 | } |
987 | else if (blhe) | |
988 | { | |
989 | /* xgettext:c-format */ | |
df5f2391 | 990 | einfo (_("%X%P: cannot export %s: symbol wrong type (%d vs %d)\n"), |
e1fa0163 | 991 | int_name, |
252b5132 RH |
992 | blhe->type, bfd_link_hash_defined); |
993 | } | |
994 | else | |
995 | { | |
996 | /* xgettext:c-format */ | |
df5f2391 | 997 | einfo (_("%X%P: cannot export %s: symbol not found\n"), |
e1fa0163 | 998 | int_name); |
252b5132 RH |
999 | } |
1000 | free (name); | |
1001 | } | |
1002 | } | |
1003 | ||
775cabad | 1004 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
1005 | |
1006 | static void | |
1579bae1 | 1007 | build_filler_bfd (int include_edata) |
252b5132 RH |
1008 | { |
1009 | lang_input_statement_type *filler_file; | |
1010 | filler_file = lang_add_input_file ("dll stuff", | |
1011 | lang_input_file_is_fake_enum, | |
1012 | NULL); | |
f13a99db AM |
1013 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", |
1014 | link_info.output_bfd); | |
252b5132 RH |
1015 | if (filler_bfd == NULL |
1016 | || !bfd_set_arch_mach (filler_bfd, | |
f13a99db AM |
1017 | bfd_get_arch (link_info.output_bfd), |
1018 | bfd_get_mach (link_info.output_bfd))) | |
252b5132 | 1019 | { |
df5f2391 | 1020 | einfo (_("%F%P: can not create BFD: %E\n")); |
252b5132 RH |
1021 | return; |
1022 | } | |
1023 | ||
c6c37250 | 1024 | if (include_edata) |
252b5132 | 1025 | { |
c6c37250 DD |
1026 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
1027 | if (edata_s == NULL | |
fd361982 AM |
1028 | || !bfd_set_section_flags (edata_s, (SEC_HAS_CONTENTS |
1029 | | SEC_ALLOC | |
1030 | | SEC_LOAD | |
1031 | | SEC_KEEP | |
1032 | | SEC_IN_MEMORY))) | |
c6c37250 | 1033 | { |
d003af55 | 1034 | einfo (_("%X%P: can not create .edata section: %E\n")); |
c6c37250 DD |
1035 | return; |
1036 | } | |
fd361982 | 1037 | bfd_set_section_size (edata_s, edata_sz); |
252b5132 | 1038 | } |
252b5132 RH |
1039 | |
1040 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
1041 | if (reloc_s == NULL | |
fd361982 AM |
1042 | || !bfd_set_section_flags (reloc_s, (SEC_HAS_CONTENTS |
1043 | | SEC_ALLOC | |
1044 | | SEC_LOAD | |
1045 | | SEC_KEEP | |
1046 | | SEC_IN_MEMORY))) | |
252b5132 | 1047 | { |
d003af55 | 1048 | einfo (_("%X%P: can not create .reloc section: %E\n")); |
252b5132 RH |
1049 | return; |
1050 | } | |
775cabad | 1051 | |
fd361982 | 1052 | bfd_set_section_size (reloc_s, 0); |
252b5132 RH |
1053 | |
1054 | ldlang_add_file (filler_file); | |
1055 | } | |
1056 | ||
775cabad | 1057 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
1058 | |
1059 | static void | |
1579bae1 | 1060 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
1061 | { |
1062 | int i, next_ordinal; | |
1063 | int name_table_size = 0; | |
1064 | const char *dlnp; | |
1065 | ||
1066 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 1067 | and what the range of ordinals is. */ |
252b5132 | 1068 | if (pe_def_file->name) |
775cabad | 1069 | dll_name = pe_def_file->name; |
252b5132 RH |
1070 | else |
1071 | { | |
1072 | dll_name = abfd->filename; | |
775cabad | 1073 | |
252b5132 | 1074 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
1075 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
1076 | dll_name = dlnp + 1; | |
252b5132 RH |
1077 | } |
1078 | ||
1079 | if (count_with_ordinals && max_ordinal > count_exported) | |
1080 | { | |
1081 | if (min_ordinal > max_ordinal - count_exported + 1) | |
1082 | min_ordinal = max_ordinal - count_exported + 1; | |
1083 | } | |
1084 | else | |
1085 | { | |
1086 | min_ordinal = 1; | |
1087 | max_ordinal = count_exported; | |
1088 | } | |
252b5132 | 1089 | |
775cabad | 1090 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 1091 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
1092 | for (i = 0; i < export_table_size; i++) |
1093 | exported_symbols[i] = -1; | |
1094 | ||
86b1cc60 | 1095 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
1096 | for (i = 0; i < NE; i++) |
1097 | { | |
6c19b93b AM |
1098 | if (exported_symbol_sections[i] |
1099 | || pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
1100 | { |
1101 | if (pe_def_file->exports[i].ordinal != -1) | |
1102 | { | |
1103 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
1104 | int pi = exported_symbols[ei]; | |
775cabad | 1105 | |
252b5132 RH |
1106 | if (pi != -1) |
1107 | { | |
1108 | /* xgettext:c-format */ | |
df5f2391 | 1109 | einfo (_("%X%P: error: ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
1110 | pe_def_file->exports[i].ordinal, |
1111 | pe_def_file->exports[i].name, | |
1112 | pe_def_file->exports[pi].name); | |
1113 | } | |
1114 | exported_symbols[ei] = i; | |
1115 | } | |
7fcab871 KT |
1116 | if (pe_def_file->exports[i].its_name) |
1117 | name_table_size += strlen (pe_def_file->exports[i].its_name) + 1; | |
1118 | else | |
1119 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
252b5132 | 1120 | } |
a8d701fd DS |
1121 | |
1122 | /* Reserve space for the forward name. */ | |
1123 | if (pe_def_file->exports[i].flag_forward) | |
1124 | { | |
1125 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
1126 | } | |
252b5132 RH |
1127 | } |
1128 | ||
1129 | next_ordinal = min_ordinal; | |
1130 | for (i = 0; i < NE; i++) | |
6c19b93b AM |
1131 | if ((exported_symbol_sections[i] |
1132 | || pe_def_file->exports[i].flag_forward) | |
1133 | && pe_def_file->exports[i].ordinal == -1) | |
a8d701fd DS |
1134 | { |
1135 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
1136 | next_ordinal++; | |
775cabad | 1137 | |
a8d701fd DS |
1138 | exported_symbols[next_ordinal - min_ordinal] = i; |
1139 | pe_def_file->exports[i].ordinal = next_ordinal; | |
1140 | } | |
252b5132 | 1141 | |
611a3ca9 NC |
1142 | /* PR 12969: Check for more than 1^16 ordinals. */ |
1143 | if (max_ordinal > 65535 || next_ordinal > 65535) | |
1144 | /* xgettext:c-format */ | |
df5f2391 | 1145 | einfo(_("%X%P: error: export ordinal too large: %d\n"), |
611a3ca9 NC |
1146 | max_ordinal > next_ordinal ? max_ordinal : next_ordinal); |
1147 | ||
86b1cc60 | 1148 | /* OK, now we can allocate some memory. */ |
775cabad NC |
1149 | edata_sz = (40 /* directory */ |
1150 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
1151 | + 4 * count_exported_byname /* name ptrs */ |
1152 | + 2 * count_exported_byname /* ordinals */ | |
1153 | + name_table_size + strlen (dll_name) + 1); | |
1154 | } | |
1155 | ||
8a5b676c | 1156 | /* Fill the exported symbol offsets. The preliminary work has already |
c1711530 | 1157 | been done in process_def_file_and_drectve(). */ |
8a5b676c DD |
1158 | |
1159 | static void | |
1579bae1 | 1160 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 1161 | { |
f0c87f88 | 1162 | int i; |
8a5b676c | 1163 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 1164 | |
8a5b676c DD |
1165 | for (i = 0; i < pe_def_file->num_exports; i++) |
1166 | { | |
1579bae1 | 1167 | char *name; |
775cabad | 1168 | |
1579bae1 | 1169 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 1170 | if (pe_details->underscored |
6c19b93b | 1171 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
1172 | { |
1173 | *name = '_'; | |
1174 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
1175 | } | |
1176 | else | |
1177 | strcpy (name, pe_def_file->exports[i].internal_name); | |
1178 | ||
1179 | blhe = bfd_link_hash_lookup (info->hash, | |
1180 | name, | |
b34976b6 | 1181 | FALSE, FALSE, TRUE); |
8a5b676c | 1182 | |
1579bae1 | 1183 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
1184 | exported_symbol_offsets[i] = blhe->u.def.value; |
1185 | ||
8a5b676c DD |
1186 | free (name); |
1187 | } | |
1188 | } | |
1189 | ||
252b5132 | 1190 | static void |
1579bae1 | 1191 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 1192 | { |
03a1c9a7 | 1193 | int s, hint; |
252b5132 | 1194 | unsigned char *edirectory; |
2f9636ba AM |
1195 | unsigned char *eaddresses; |
1196 | unsigned char *enameptrs; | |
1197 | unsigned char *eordinals; | |
47639182 | 1198 | char *enamestr; |
252b5132 | 1199 | |
1579bae1 | 1200 | edata_d = xmalloc (edata_sz); |
252b5132 | 1201 | |
86b1cc60 | 1202 | /* Note use of array pointer math here. */ |
252b5132 | 1203 | edirectory = edata_d; |
c7e2358a | 1204 | eaddresses = edirectory + 40; |
2f9636ba AM |
1205 | enameptrs = eaddresses + 4 * export_table_size; |
1206 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 1207 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 1208 | |
1579bae1 AM |
1209 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
1210 | + edata_s->output_section->vma - image_base) | |
252b5132 | 1211 | |
c2a94a7a | 1212 | memset (edata_d, 0, edata_sz); |
0cb112f7 CF |
1213 | |
1214 | if (pe_data (abfd)->insert_timestamp) | |
1215 | H_PUT_32 (abfd, time (0), edata_d + 4); | |
1216 | ||
252b5132 RH |
1217 | if (pe_def_file->version_major != -1) |
1218 | { | |
1219 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1220 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1221 | } | |
775cabad | 1222 | |
252b5132 RH |
1223 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1224 | strcpy (enamestr, dll_name); | |
1225 | enamestr += strlen (enamestr) + 1; | |
1226 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1227 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1228 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1229 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1230 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1231 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1232 | ||
8a5b676c DD |
1233 | fill_exported_offsets (abfd, info); |
1234 | ||
03a1c9a7 NC |
1235 | /* Ok, now for the filling in part. |
1236 | Scan alphabetically - ie the ordering in the exports[] table, | |
1237 | rather than by ordinal - the ordering in the exported_symbol[] | |
1238 | table. See dlltool.c and: | |
6c19b93b | 1239 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html |
1579bae1 | 1240 | for more information. */ |
252b5132 | 1241 | hint = 0; |
03a1c9a7 | 1242 | for (s = 0; s < NE; s++) |
252b5132 | 1243 | { |
f5a95868 | 1244 | struct bfd_section *ssec = exported_symbol_sections[s]; |
6c19b93b AM |
1245 | if (pe_def_file->exports[s].ordinal != -1 |
1246 | && (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1247 | { |
45b1f63c | 1248 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1249 | |
a8d701fd DS |
1250 | if (pe_def_file->exports[s].flag_forward) |
1251 | { | |
1252 | bfd_put_32 (abfd, ERVA (enamestr), | |
6c19b93b | 1253 | eaddresses + 4 * (ord - min_ordinal)); |
a8d701fd DS |
1254 | |
1255 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1256 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1257 | } | |
1258 | else | |
1259 | { | |
6ca0987a | 1260 | bfd_vma srva = (exported_symbol_offsets[s] |
a8d701fd DS |
1261 | + ssec->output_section->vma |
1262 | + ssec->output_offset); | |
1263 | ||
1264 | bfd_put_32 (abfd, srva - image_base, | |
6c19b93b | 1265 | eaddresses + 4 * (ord - min_ordinal)); |
a8d701fd | 1266 | } |
775cabad | 1267 | |
252b5132 RH |
1268 | if (!pe_def_file->exports[s].flag_noname) |
1269 | { | |
1270 | char *ename = pe_def_file->exports[s].name; | |
7fcab871 KT |
1271 | if (pe_def_file->exports[s].its_name) |
1272 | ename = pe_def_file->exports[s].its_name; | |
03a1c9a7 | 1273 | |
2f9636ba AM |
1274 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1275 | enameptrs += 4; | |
252b5132 RH |
1276 | strcpy (enamestr, ename); |
1277 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1278 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1279 | eordinals += 2; | |
252b5132 RH |
1280 | pe_def_file->exports[s].hint = hint++; |
1281 | } | |
252b5132 RH |
1282 | } |
1283 | } | |
1284 | } | |
1285 | ||
b044cda1 | 1286 | |
198beae2 | 1287 | static struct bfd_section *current_sec; |
b044cda1 | 1288 | |
317ff008 EB |
1289 | static void |
1290 | pe_walk_relocs (struct bfd_link_info *info, | |
1291 | char *name, | |
1292 | const char *symname, | |
1293 | struct bfd_hash_table *import_hash, | |
1294 | void (*cb) (arelent *, asection *, char *, const char *)) | |
b044cda1 CW |
1295 | { |
1296 | bfd *b; | |
0d888aac | 1297 | asection *s; |
b044cda1 | 1298 | |
c72f2fb2 | 1299 | for (b = info->input_bfds; b; b = b->link.next) |
b044cda1 | 1300 | { |
775cabad | 1301 | asymbol **symbols; |
775cabad | 1302 | |
5c1d2f5f AM |
1303 | if (!bfd_generic_link_read_symbols (b)) |
1304 | { | |
df5f2391 | 1305 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); |
5c1d2f5f AM |
1306 | return; |
1307 | } | |
1308 | ||
1309 | symbols = bfd_get_outsymbols (b); | |
b044cda1 CW |
1310 | |
1311 | for (s = b->sections; s; s = s->next) | |
1312 | { | |
775cabad NC |
1313 | arelent **relocs; |
1314 | int relsize, nrelocs, i; | |
fd361982 | 1315 | int flags = bfd_section_flags (s); |
b044cda1 | 1316 | |
775cabad | 1317 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1318 | if (flags & SEC_LINK_ONCE |
1319 | && s->output_section == bfd_abs_section_ptr) | |
1320 | continue; | |
1321 | ||
0d888aac | 1322 | current_sec = s; |
b044cda1 | 1323 | |
b044cda1 | 1324 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1325 | relocs = xmalloc (relsize); |
b044cda1 CW |
1326 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1327 | ||
1328 | for (i = 0; i < nrelocs; i++) | |
1329 | { | |
fc0a2244 | 1330 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1331 | |
317ff008 EB |
1332 | /* Warning: the callback needs to be passed NAME directly. */ |
1333 | if (import_hash) | |
1334 | { | |
1335 | if (bfd_hash_lookup (import_hash, sym->name, FALSE, FALSE)) | |
1336 | { | |
1337 | strcpy (name, sym->name); | |
1338 | cb (relocs[i], s, name, symname); | |
1339 | } | |
1340 | } | |
1341 | else | |
1342 | { | |
1343 | if (strcmp (name, sym->name) == 0) | |
1344 | cb (relocs[i], s, name, symname); | |
1345 | } | |
b044cda1 | 1346 | } |
775cabad | 1347 | |
b044cda1 | 1348 | free (relocs); |
775cabad | 1349 | |
b044cda1 CW |
1350 | /* Warning: the allocated symbols are remembered in BFD and reused |
1351 | later, so don't free them! */ | |
1352 | /* free (symbols); */ | |
1353 | } | |
1354 | } | |
1355 | } | |
1356 | ||
317ff008 EB |
1357 | void |
1358 | pe_find_data_imports (const char *symhead, | |
1359 | void (*cb) (arelent *, asection *, char *, const char *)) | |
1360 | { | |
1361 | struct bfd_link_hash_entry *undef; | |
1362 | const size_t headlen = strlen (symhead); | |
1363 | size_t namelen = 0; | |
1364 | char *buf, *name; | |
1365 | struct bfd_hash_table *import_hash; | |
1366 | ||
1367 | for (undef = link_info.hash->undefs; undef; undef = undef->u.undef.next) | |
1368 | if (undef->type == bfd_link_hash_undefined) | |
1369 | { | |
1370 | size_t len = strlen (undef->root.string); | |
1371 | if (namelen < len) | |
1372 | namelen = len; | |
1373 | } | |
1374 | if (namelen == 0) | |
1375 | return; | |
1376 | ||
1377 | /* For the pseudo-relocation support version 2, we can collect the symbols | |
1378 | that are subject to auto-import and adjust the relocations en masse. */ | |
1379 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
1380 | { | |
1381 | import_hash | |
1382 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
1383 | if (!bfd_hash_table_init (import_hash, | |
1384 | bfd_hash_newfunc, | |
1385 | sizeof (struct bfd_hash_entry))) | |
1386 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); | |
1387 | } | |
1388 | else | |
1389 | import_hash = NULL; | |
1390 | ||
1391 | /* We are being a bit cunning here. The buffer will have space for | |
1392 | prefixes at the beginning. The prefix is modified here and in a | |
1393 | number of functions called from this function. */ | |
1394 | #define PREFIX_LEN 32 | |
1395 | buf = xmalloc (PREFIX_LEN + namelen + 1); | |
1396 | name = buf + PREFIX_LEN; | |
1397 | ||
1398 | for (undef = link_info.hash->undefs; undef; undef = undef->u.undef.next) | |
1399 | if (undef->type == bfd_link_hash_undefined) | |
1400 | { | |
1401 | struct bfd_link_hash_entry *sym; | |
1402 | char *impname; | |
1403 | ||
1404 | if (pe_dll_extra_pe_debug) | |
1405 | printf ("%s:%s\n", __FUNCTION__, undef->root.string); | |
1406 | ||
1407 | strcpy (name, undef->root.string); | |
1408 | impname = name - (sizeof "__imp_" - 1); | |
1409 | memcpy (impname, "__imp_", sizeof "__imp_" - 1); | |
1410 | ||
1411 | sym = bfd_link_hash_lookup (link_info.hash, impname, 0, 0, 1); | |
1412 | ||
1413 | if (sym && sym->type == bfd_link_hash_defined) | |
1414 | { | |
1415 | if (import_hash) | |
1416 | bfd_hash_lookup (import_hash, undef->root.string, TRUE, FALSE); | |
1417 | else | |
1418 | { | |
1419 | bfd *b = sym->u.def.section->owner; | |
1420 | const char *symname = NULL; | |
1421 | asymbol **symbols; | |
1422 | int nsyms, i; | |
1423 | ||
1424 | if (!bfd_generic_link_read_symbols (b)) | |
1425 | { | |
1426 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); | |
1427 | return; | |
1428 | } | |
1429 | ||
1430 | symbols = bfd_get_outsymbols (b); | |
1431 | nsyms = bfd_get_symcount (b); | |
1432 | ||
1433 | for (i = 0; i < nsyms; i++) | |
1434 | if (strncmp (symbols[i]->name, symhead, headlen) == 0) | |
1435 | { | |
1436 | if (pe_dll_extra_pe_debug) | |
1437 | printf ("->%s\n", symbols[i]->name); | |
1438 | ||
1439 | symname = symbols[i]->name + headlen; | |
1440 | break; | |
1441 | } | |
1442 | ||
1443 | /* If the symobl isn't part of an import table, there is no | |
1444 | point in building a fixup, this would give rise to link | |
1445 | errors for mangled symbols instead of the original one. */ | |
1446 | if (symname) | |
1447 | pe_walk_relocs (&link_info, name, symname, NULL, cb); | |
1448 | else | |
1449 | continue; | |
1450 | } | |
1451 | ||
1452 | /* Let's differentiate it somehow from defined. */ | |
1453 | undef->type = bfd_link_hash_defweak; | |
1454 | undef->u.def.value = sym->u.def.value; | |
1455 | undef->u.def.section = sym->u.def.section; | |
1456 | ||
de07a745 EB |
1457 | /* We replace the original name with the __imp_ prefixed one, this |
1458 | 1) may trash memory 2) leads to duplicate symbols. But this is | |
1459 | better than having a misleading name that can confuse GDB. */ | |
1460 | undef->root.string = sym->root.string; | |
1461 | ||
317ff008 EB |
1462 | if (link_info.pei386_auto_import == -1) |
1463 | { | |
1464 | static bfd_boolean warned = FALSE; | |
1465 | ||
1466 | info_msg (_("Info: resolving %s by linking to %s " | |
1467 | "(auto-import)\n"), name, impname); | |
1468 | ||
1469 | /* PR linker/4844. */ | |
1470 | if (!warned) | |
1471 | { | |
1472 | einfo (_("%P: warning: auto-importing has been activated " | |
1473 | "without --enable-auto-import specified on the " | |
1474 | "command line; this should work unless it " | |
1475 | "involves constant data structures referencing " | |
1476 | "symbols from auto-imported DLLs\n")); | |
1477 | warned = TRUE; | |
1478 | } | |
1479 | } | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | /* If we have the import hash table, walk the relocations only once. */ | |
1484 | if (import_hash) | |
1485 | { | |
1486 | pe_walk_relocs (&link_info, name, NULL, import_hash, cb); | |
1487 | bfd_hash_table_free (import_hash); | |
1488 | free (import_hash); | |
1489 | } | |
1490 | ||
1491 | free (buf); | |
1492 | } | |
1493 | ||
775cabad | 1494 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1495 | |
1496 | static void | |
1579bae1 | 1497 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1498 | { |
1499 | ||
86b1cc60 | 1500 | /* For .reloc stuff. */ |
c6c37250 | 1501 | reloc_data_type *reloc_data; |
252b5132 RH |
1502 | int total_relocs = 0; |
1503 | int i; | |
6ca0987a KT |
1504 | bfd_vma sec_page = (bfd_vma) -1; |
1505 | bfd_vma page_ptr, page_count; | |
252b5132 RH |
1506 | int bi; |
1507 | bfd *b; | |
198beae2 | 1508 | struct bfd_section *s; |
252b5132 RH |
1509 | |
1510 | total_relocs = 0; | |
c72f2fb2 | 1511 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
1512 | for (s = b->sections; s; s = s->next) |
1513 | total_relocs += s->reloc_count; | |
1514 | ||
1579bae1 | 1515 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1516 | |
1517 | total_relocs = 0; | |
1518 | bi = 0; | |
c72f2fb2 | 1519 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link.next) |
252b5132 RH |
1520 | { |
1521 | arelent **relocs; | |
91d6fa6a | 1522 | int relsize, nrelocs; |
252b5132 RH |
1523 | |
1524 | for (s = b->sections; s; s = s->next) | |
1525 | { | |
6ca0987a | 1526 | bfd_vma sec_vma = s->output_section->vma + s->output_offset; |
252b5132 | 1527 | asymbol **symbols; |
252b5132 | 1528 | |
86b1cc60 | 1529 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1530 | if (!(s->output_section->flags & SEC_LOAD)) |
1531 | continue; | |
1532 | ||
1533 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1534 | seen it happen - DJ */ |
45dfa85a | 1535 | if (s->output_section == bfd_abs_section_ptr) |
252b5132 RH |
1536 | continue; |
1537 | ||
1538 | if (s->output_section->vma == 0) | |
1539 | { | |
86b1cc60 | 1540 | /* Huh? Shouldn't happen, but punt if it does. */ |
df5f2391 | 1541 | einfo (_("%P: zero vma section reloc detected: `%s' #%d f=%d\n"), |
252b5132 RH |
1542 | s->output_section->name, s->output_section->index, |
1543 | s->output_section->flags); | |
1544 | continue; | |
1545 | } | |
1546 | ||
5c1d2f5f AM |
1547 | if (!bfd_generic_link_read_symbols (b)) |
1548 | { | |
df5f2391 | 1549 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); |
5c1d2f5f AM |
1550 | return; |
1551 | } | |
252b5132 | 1552 | |
5c1d2f5f | 1553 | symbols = bfd_get_outsymbols (b); |
252b5132 | 1554 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1555 | relocs = xmalloc (relsize); |
252b5132 RH |
1556 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1557 | ||
1558 | for (i = 0; i < nrelocs; i++) | |
1559 | { | |
b044cda1 | 1560 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1561 | { |
fc0a2244 | 1562 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1563 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1564 | } |
252b5132 | 1565 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1566 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1567 | { |
fc0a2244 | 1568 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1569 | |
1b610c93 | 1570 | /* Don't create relocs for undefined weak symbols. */ |
49314f87 DS |
1571 | if (sym->flags == BSF_WEAK) |
1572 | { | |
1573 | struct bfd_link_hash_entry *blhe | |
9dda37c1 | 1574 | = bfd_wrapped_link_hash_lookup (abfd, info, sym->name, |
49314f87 | 1575 | FALSE, FALSE, FALSE); |
9dda37c1 DK |
1576 | if (blhe && blhe->type == bfd_link_hash_undefweak) |
1577 | { | |
1578 | /* Check aux sym and see if it is defined or not. */ | |
1579 | struct coff_link_hash_entry *h, *h2; | |
1580 | h = (struct coff_link_hash_entry *)blhe; | |
1581 | if (h->symbol_class != C_NT_WEAK || h->numaux != 1) | |
1582 | continue; | |
1583 | h2 = h->auxbfd->tdata.coff_obj_data->sym_hashes | |
1584 | [h->aux->x_sym.x_tagndx.l]; | |
1585 | /* We don't want a base reloc if the aux sym is not | |
1586 | found, undefined, or if it is the constant ABS | |
1587 | zero default value. (We broaden that slightly by | |
1588 | not testing the value, just the section; there's | |
1589 | no reason we'd want a reference to any absolute | |
1590 | address to get relocated during rebasing). */ | |
1591 | if (!h2 || h2->root.type == bfd_link_hash_undefined | |
45dfa85a | 1592 | || h2->root.u.def.section == bfd_abs_section_ptr) |
9dda37c1 DK |
1593 | continue; |
1594 | } | |
1595 | else if (!blhe || blhe->type != bfd_link_hash_defined) | |
1596 | continue; | |
49314f87 | 1597 | } |
0432176d DK |
1598 | /* Nor for Dwarf FDE references to discarded sections. */ |
1599 | else if (bfd_is_abs_section (sym->section->output_section)) | |
1600 | { | |
1601 | /* We only ignore relocs from .eh_frame sections, as | |
1602 | they are discarded by the final link rather than | |
1603 | resolved against the kept section. */ | |
1604 | if (!strcmp (s->name, ".eh_frame")) | |
1605 | continue; | |
1606 | } | |
49314f87 | 1607 | |
c6c37250 | 1608 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; |
08dec09d | 1609 | reloc_data[total_relocs].idx = total_relocs; |
5cc18311 | 1610 | |
344a211f | 1611 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1612 | |
344a211f NC |
1613 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1614 | relocs[i]->howto->rightshift) | |
252b5132 | 1615 | { |
99ad8390 NC |
1616 | #ifdef pe_use_x86_64 |
1617 | case BITS_AND_SHIFT (64, 0): | |
1618 | reloc_data[total_relocs].type = 10; | |
1619 | total_relocs++; | |
1620 | break; | |
1621 | #endif | |
344a211f | 1622 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1623 | reloc_data[total_relocs].type = 3; |
1624 | total_relocs++; | |
252b5132 | 1625 | break; |
344a211f NC |
1626 | case BITS_AND_SHIFT (16, 0): |
1627 | reloc_data[total_relocs].type = 2; | |
1628 | total_relocs++; | |
1629 | break; | |
1630 | case BITS_AND_SHIFT (16, 16): | |
1631 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1632 | /* FIXME: we can't know the symbol's right value |
1633 | yet, but we probably can safely assume that | |
1634 | CE will relocate us in 64k blocks, so leaving | |
1635 | it zero is safe. */ | |
344a211f NC |
1636 | reloc_data[total_relocs].extra = 0; |
1637 | total_relocs++; | |
1638 | break; | |
1639 | case BITS_AND_SHIFT (26, 2): | |
1640 | reloc_data[total_relocs].type = 5; | |
1641 | total_relocs++; | |
1642 | break; | |
fea39bcb | 1643 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1644 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1645 | Those ARM_xxx definitions should go in proper | |
1646 | header someday. */ | |
1647 | if (relocs[i]->howto->type == 0 | |
1648 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1649 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1650 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1651 | that has already been fully processed during a | |
1652 | previous link stage, so ignore it here. */ | |
1653 | break; | |
1654 | /* Fall through. */ | |
252b5132 RH |
1655 | default: |
1656 | /* xgettext:c-format */ | |
df5f2391 | 1657 | einfo (_("%X%P: error: %d-bit reloc in dll\n"), |
252b5132 RH |
1658 | relocs[i]->howto->bitsize); |
1659 | break; | |
1660 | } | |
1661 | } | |
1662 | } | |
1663 | free (relocs); | |
86b1cc60 KH |
1664 | /* Warning: the allocated symbols are remembered in BFD and |
1665 | reused later, so don't free them! */ | |
252b5132 RH |
1666 | } |
1667 | } | |
1668 | ||
1669 | /* At this point, we have total_relocs relocation addresses in | |
1670 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1671 | We must now create the new sections. */ |
c6c37250 | 1672 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1673 | |
1674 | for (i = 0; i < total_relocs; i++) | |
1675 | { | |
6ca0987a | 1676 | bfd_vma this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1677 | |
252b5132 RH |
1678 | if (this_page != sec_page) |
1679 | { | |
775cabad | 1680 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1681 | reloc_sz += 8; |
1682 | sec_page = this_page; | |
1683 | } | |
5cc18311 | 1684 | |
252b5132 | 1685 | reloc_sz += 2; |
5cc18311 | 1686 | |
344a211f NC |
1687 | if (reloc_data[i].type == 4) |
1688 | reloc_sz += 2; | |
252b5132 | 1689 | } |
b7a26f91 | 1690 | |
775cabad | 1691 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 | 1692 | reloc_d = xmalloc (reloc_sz); |
6ca0987a | 1693 | sec_page = (bfd_vma) -1; |
252b5132 | 1694 | reloc_sz = 0; |
6ca0987a | 1695 | page_ptr = (bfd_vma) -1; |
252b5132 | 1696 | page_count = 0; |
775cabad | 1697 | |
252b5132 RH |
1698 | for (i = 0; i < total_relocs; i++) |
1699 | { | |
6ca0987a KT |
1700 | bfd_vma rva = reloc_data[i].vma - image_base; |
1701 | bfd_vma this_page = (rva & ~0xfff); | |
775cabad | 1702 | |
252b5132 RH |
1703 | if (this_page != sec_page) |
1704 | { | |
1705 | while (reloc_sz & 3) | |
1706 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1707 | |
6ca0987a | 1708 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1709 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1710 | |
252b5132 RH |
1711 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1712 | page_ptr = reloc_sz; | |
1713 | reloc_sz += 8; | |
1714 | sec_page = this_page; | |
1715 | page_count = 0; | |
1716 | } | |
775cabad | 1717 | |
d643799d | 1718 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1719 | reloc_d + reloc_sz); |
252b5132 | 1720 | reloc_sz += 2; |
775cabad | 1721 | |
c6c37250 DD |
1722 | if (reloc_data[i].type == 4) |
1723 | { | |
1724 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1725 | reloc_sz += 2; | |
1726 | } | |
775cabad | 1727 | |
252b5132 RH |
1728 | page_count++; |
1729 | } | |
775cabad | 1730 | |
252b5132 RH |
1731 | while (reloc_sz & 3) |
1732 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1733 | |
6ca0987a | 1734 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1735 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1736 | |
eea6121a | 1737 | while (reloc_sz < reloc_s->size) |
252b5132 RH |
1738 | reloc_d[reloc_sz++] = 0; |
1739 | } | |
1740 | ||
775cabad NC |
1741 | /* Given the exiting def_file structure, print out a .DEF file that |
1742 | corresponds to it. */ | |
252b5132 RH |
1743 | |
1744 | static void | |
1579bae1 | 1745 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1746 | { |
1747 | char *cp; | |
775cabad | 1748 | |
252b5132 RH |
1749 | for (cp = s; *cp; cp++) |
1750 | if (*cp == '\'' | |
1751 | || *cp == '"' | |
1752 | || *cp == '\\' | |
3882b010 | 1753 | || ISSPACE (*cp) |
252b5132 RH |
1754 | || *cp == ',' |
1755 | || *cp == ';') | |
1756 | needs_quotes = 1; | |
775cabad | 1757 | |
252b5132 RH |
1758 | if (needs_quotes) |
1759 | { | |
1760 | putc ('"', f); | |
775cabad | 1761 | |
252b5132 RH |
1762 | while (*s) |
1763 | { | |
1764 | if (*s == '"' || *s == '\\') | |
1765 | putc ('\\', f); | |
775cabad | 1766 | |
252b5132 RH |
1767 | putc (*s, f); |
1768 | s++; | |
1769 | } | |
775cabad | 1770 | |
252b5132 RH |
1771 | putc ('"', f); |
1772 | } | |
1773 | else | |
1774 | fputs (s, f); | |
1775 | } | |
1776 | ||
1777 | void | |
1579bae1 | 1778 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1779 | { |
1780 | int i; | |
1781 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1782 | |
252b5132 | 1783 | if (out == NULL) |
775cabad | 1784 | /* xgettext:c-format */ |
df5f2391 | 1785 | einfo (_("%P: can't open output def file %s\n"), |
611a3ca9 | 1786 | pe_out_def_filename); |
252b5132 RH |
1787 | |
1788 | if (pe_def_file) | |
1789 | { | |
1790 | if (pe_def_file->name) | |
1791 | { | |
1792 | if (pe_def_file->is_dll) | |
1793 | fprintf (out, "LIBRARY "); | |
1794 | else | |
1795 | fprintf (out, "NAME "); | |
775cabad | 1796 | |
252b5132 | 1797 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1798 | |
f13a99db | 1799 | if (pe_data (link_info.output_bfd)->pe_opthdr.ImageBase) |
0ead4f8d KT |
1800 | { |
1801 | fprintf (out, " BASE=0x"); | |
1802 | fprintf_vma (out, ((bfd_vma) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase)); | |
1803 | } | |
252b5132 RH |
1804 | fprintf (out, "\n"); |
1805 | } | |
1806 | ||
1807 | if (pe_def_file->description) | |
1808 | { | |
1809 | fprintf (out, "DESCRIPTION "); | |
1810 | quoteput (pe_def_file->description, out, 1); | |
1811 | fprintf (out, "\n"); | |
1812 | } | |
1813 | ||
1814 | if (pe_def_file->version_minor != -1) | |
1815 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1816 | pe_def_file->version_minor); | |
1817 | else if (pe_def_file->version_major != -1) | |
1818 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1819 | ||
1820 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1821 | fprintf (out, "\n"); | |
1822 | ||
1823 | if (pe_def_file->stack_commit != -1) | |
1824 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1825 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1826 | else if (pe_def_file->stack_reserve != -1) | |
1827 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1828 | |
252b5132 RH |
1829 | if (pe_def_file->heap_commit != -1) |
1830 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1831 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1832 | else if (pe_def_file->heap_reserve != -1) | |
1833 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1834 | ||
1835 | if (pe_def_file->num_section_defs > 0) | |
1836 | { | |
1837 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1838 | |
252b5132 RH |
1839 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1840 | { | |
1841 | fprintf (out, " "); | |
1842 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1843 | |
252b5132 RH |
1844 | if (pe_def_file->section_defs[i].class) |
1845 | { | |
1846 | fprintf (out, " CLASS "); | |
1847 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1848 | } | |
775cabad | 1849 | |
252b5132 RH |
1850 | if (pe_def_file->section_defs[i].flag_read) |
1851 | fprintf (out, " READ"); | |
775cabad | 1852 | |
252b5132 RH |
1853 | if (pe_def_file->section_defs[i].flag_write) |
1854 | fprintf (out, " WRITE"); | |
775cabad | 1855 | |
252b5132 RH |
1856 | if (pe_def_file->section_defs[i].flag_execute) |
1857 | fprintf (out, " EXECUTE"); | |
775cabad | 1858 | |
252b5132 RH |
1859 | if (pe_def_file->section_defs[i].flag_shared) |
1860 | fprintf (out, " SHARED"); | |
775cabad | 1861 | |
252b5132 RH |
1862 | fprintf (out, "\n"); |
1863 | } | |
1864 | } | |
1865 | ||
1866 | if (pe_def_file->num_exports > 0) | |
1867 | { | |
b044cda1 | 1868 | fprintf (out, "EXPORTS\n"); |
775cabad | 1869 | |
252b5132 RH |
1870 | for (i = 0; i < pe_def_file->num_exports; i++) |
1871 | { | |
1872 | def_file_export *e = pe_def_file->exports + i; | |
1873 | fprintf (out, " "); | |
1874 | quoteput (e->name, out, 0); | |
775cabad | 1875 | |
252b5132 RH |
1876 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1877 | { | |
1878 | fprintf (out, " = "); | |
1879 | quoteput (e->internal_name, out, 0); | |
1880 | } | |
775cabad | 1881 | |
252b5132 RH |
1882 | if (e->ordinal != -1) |
1883 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1884 | |
252b5132 RH |
1885 | if (e->flag_private) |
1886 | fprintf (out, " PRIVATE"); | |
775cabad | 1887 | |
252b5132 RH |
1888 | if (e->flag_constant) |
1889 | fprintf (out, " CONSTANT"); | |
775cabad | 1890 | |
252b5132 RH |
1891 | if (e->flag_noname) |
1892 | fprintf (out, " NONAME"); | |
775cabad | 1893 | |
252b5132 RH |
1894 | if (e->flag_data) |
1895 | fprintf (out, " DATA"); | |
1896 | ||
1897 | fprintf (out, "\n"); | |
1898 | } | |
1899 | } | |
1900 | ||
1901 | if (pe_def_file->num_imports > 0) | |
1902 | { | |
1903 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1904 | |
252b5132 RH |
1905 | for (i = 0; i < pe_def_file->num_imports; i++) |
1906 | { | |
1907 | def_file_import *im = pe_def_file->imports + i; | |
1908 | fprintf (out, " "); | |
775cabad | 1909 | |
252b5132 RH |
1910 | if (im->internal_name |
1911 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1912 | { | |
1913 | quoteput (im->internal_name, out, 0); | |
1914 | fprintf (out, " = "); | |
1915 | } | |
775cabad | 1916 | |
252b5132 RH |
1917 | quoteput (im->module->name, out, 0); |
1918 | fprintf (out, "."); | |
775cabad | 1919 | |
252b5132 RH |
1920 | if (im->name) |
1921 | quoteput (im->name, out, 0); | |
1922 | else | |
1923 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1924 | |
7fcab871 KT |
1925 | if (im->its_name) |
1926 | { | |
1927 | fprintf (out, " == "); | |
1928 | quoteput (im->its_name, out, 0); | |
1929 | } | |
1930 | ||
252b5132 RH |
1931 | fprintf (out, "\n"); |
1932 | } | |
1933 | } | |
1934 | } | |
1935 | else | |
1936 | fprintf (out, _("; no contents available\n")); | |
1937 | ||
1938 | if (fclose (out) == EOF) | |
775cabad | 1939 | /* xgettext:c-format */ |
df5f2391 | 1940 | einfo (_("%P: error closing file `%s'\n"), pe_out_def_filename); |
252b5132 RH |
1941 | } |
1942 | ||
775cabad | 1943 | /* Generate the import library. */ |
252b5132 RH |
1944 | |
1945 | static asymbol **symtab; | |
1946 | static int symptr; | |
1947 | static int tmp_seq; | |
1948 | static const char *dll_filename; | |
1949 | static char *dll_symname; | |
1950 | ||
45dfa85a | 1951 | #define UNDSEC bfd_und_section_ptr |
252b5132 RH |
1952 | |
1953 | static asection * | |
1579bae1 | 1954 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1955 | { |
1956 | asection *sec; | |
1957 | asymbol *sym; | |
1958 | ||
1959 | sec = bfd_make_section_old_way (abfd, name); | |
fd361982 AM |
1960 | bfd_set_section_flags (sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
1961 | bfd_set_section_alignment (sec, align); | |
86b1cc60 | 1962 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1963 | sec->output_section = sec; |
1964 | ||
1965 | sym = bfd_make_empty_symbol (abfd); | |
1966 | symtab[symptr++] = sym; | |
1967 | sym->name = sec->name; | |
1968 | sym->section = sec; | |
1969 | sym->flags = BSF_LOCAL; | |
1970 | sym->value = 0; | |
1971 | ||
1972 | return sec; | |
1973 | } | |
1974 | ||
1975 | static void | |
1579bae1 AM |
1976 | quick_symbol (bfd *abfd, |
1977 | const char *n1, | |
1978 | const char *n2, | |
1979 | const char *n3, | |
1980 | asection *sec, | |
1981 | int flags, | |
1982 | int addr) | |
252b5132 RH |
1983 | { |
1984 | asymbol *sym; | |
1579bae1 | 1985 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1986 | |
252b5132 RH |
1987 | strcpy (name, n1); |
1988 | strcat (name, n2); | |
1989 | strcat (name, n3); | |
1990 | sym = bfd_make_empty_symbol (abfd); | |
1991 | sym->name = name; | |
1992 | sym->section = sec; | |
1993 | sym->flags = flags; | |
1994 | sym->value = addr; | |
1995 | symtab[symptr++] = sym; | |
1996 | } | |
1997 | ||
1998 | static arelent *reltab = 0; | |
1999 | static int relcount = 0, relsize = 0; | |
2000 | ||
2001 | static void | |
0ead4f8d | 2002 | quick_reloc (bfd *abfd, bfd_size_type address, int which_howto, int symidx) |
252b5132 | 2003 | { |
1579bae1 | 2004 | if (relcount >= relsize - 1) |
252b5132 RH |
2005 | { |
2006 | relsize += 10; | |
2007 | if (reltab) | |
1579bae1 | 2008 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 2009 | else |
1579bae1 | 2010 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
2011 | } |
2012 | reltab[relcount].address = address; | |
2013 | reltab[relcount].addend = 0; | |
2014 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
2015 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
2016 | relcount++; | |
2017 | } | |
2018 | ||
2019 | static void | |
2020 | save_relocs (asection *sec) | |
2021 | { | |
2022 | int i; | |
775cabad | 2023 | |
252b5132 RH |
2024 | sec->relocation = reltab; |
2025 | sec->reloc_count = relcount; | |
1579bae1 | 2026 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 2027 | for (i = 0; i < relcount; i++) |
252b5132 RH |
2028 | sec->orelocation[i] = sec->relocation + i; |
2029 | sec->orelocation[relcount] = 0; | |
2030 | sec->flags |= SEC_RELOC; | |
2031 | reltab = 0; | |
2032 | relcount = relsize = 0; | |
2033 | } | |
2034 | ||
775cabad | 2035 | /* .section .idata$2 |
6c19b93b | 2036 | .global __head_my_dll |
775cabad | 2037 | __head_my_dll: |
6c19b93b AM |
2038 | .rva hname |
2039 | .long 0 | |
2040 | .long 0 | |
2041 | .rva __my_dll_iname | |
2042 | .rva fthunk | |
2043 | ||
2044 | .section .idata$5 | |
2045 | .long 0 | |
775cabad | 2046 | fthunk: |
b7a26f91 | 2047 | |
6c19b93b AM |
2048 | .section .idata$4 |
2049 | .long 0 | |
775cabad | 2050 | hname: */ |
252b5132 RH |
2051 | |
2052 | static bfd * | |
1579bae1 | 2053 | make_head (bfd *parent) |
252b5132 RH |
2054 | { |
2055 | asection *id2, *id5, *id4; | |
2056 | unsigned char *d2, *d5, *d4; | |
2057 | char *oname; | |
2058 | bfd *abfd; | |
2059 | ||
1579bae1 | 2060 | oname = xmalloc (20); |
252b5132 RH |
2061 | sprintf (oname, "d%06d.o", tmp_seq); |
2062 | tmp_seq++; | |
2063 | ||
2064 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2065 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2066 | bfd_make_writable (abfd); |
2067 | ||
2068 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2069 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2070 | |
2071 | symptr = 0; | |
1579bae1 | 2072 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
2073 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
2074 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2075 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
2076 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
2077 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
2078 | |
2079 | /* OK, pay attention here. I got confused myself looking back at | |
2080 | it. We create a four-byte section to mark the beginning of the | |
2081 | list, and we include an offset of 4 in the section, so that the | |
2082 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 2083 | the start of the list of sections from other objects. */ |
252b5132 | 2084 | |
fd361982 | 2085 | bfd_set_section_size (id2, 20); |
1579bae1 | 2086 | d2 = xmalloc (20); |
252b5132 RH |
2087 | id2->contents = d2; |
2088 | memset (d2, 0, 20); | |
ce11ba6c KT |
2089 | if (pe_use_nul_prefixed_import_tables) |
2090 | d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */ | |
252b5132 RH |
2091 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2092 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
2093 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
2094 | save_relocs (id2); | |
2095 | ||
ce11ba6c | 2096 | if (pe_use_nul_prefixed_import_tables) |
fd361982 | 2097 | bfd_set_section_size (id5, PE_IDATA5_SIZE); |
ce11ba6c | 2098 | else |
fd361982 | 2099 | bfd_set_section_size (id5, 0); |
99ad8390 | 2100 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 2101 | id5->contents = d5; |
99ad8390 | 2102 | memset (d5, 0, PE_IDATA5_SIZE); |
ce11ba6c | 2103 | if (pe_use_nul_prefixed_import_tables) |
fd361982 | 2104 | bfd_set_section_size (id4, PE_IDATA4_SIZE); |
ce11ba6c | 2105 | else |
fd361982 | 2106 | bfd_set_section_size (id4, 0); |
99ad8390 | 2107 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 2108 | id4->contents = d4; |
99ad8390 | 2109 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 RH |
2110 | |
2111 | bfd_set_symtab (abfd, symtab, symptr); | |
2112 | ||
2113 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
ce11ba6c KT |
2114 | if (pe_use_nul_prefixed_import_tables) |
2115 | { | |
2116 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
2117 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
2118 | } | |
2119 | else | |
2120 | { | |
2121 | bfd_set_section_contents (abfd, id5, d5, 0, 0); | |
2122 | bfd_set_section_contents (abfd, id4, d4, 0, 0); | |
2123 | } | |
5cc18311 | 2124 | |
252b5132 RH |
2125 | bfd_make_readable (abfd); |
2126 | return abfd; | |
2127 | } | |
2128 | ||
775cabad | 2129 | /* .section .idata$4 |
6c19b93b | 2130 | .long 0 |
99ad8390 | 2131 | [.long 0] for PE+ |
6c19b93b AM |
2132 | .section .idata$5 |
2133 | .long 0 | |
99ad8390 | 2134 | [.long 0] for PE+ |
6c19b93b AM |
2135 | .section idata$7 |
2136 | .global __my_dll_iname | |
775cabad | 2137 | __my_dll_iname: |
6c19b93b | 2138 | .asciz "my.dll" */ |
252b5132 RH |
2139 | |
2140 | static bfd * | |
1579bae1 | 2141 | make_tail (bfd *parent) |
252b5132 RH |
2142 | { |
2143 | asection *id4, *id5, *id7; | |
2144 | unsigned char *d4, *d5, *d7; | |
2145 | int len; | |
2146 | char *oname; | |
2147 | bfd *abfd; | |
2148 | ||
1579bae1 | 2149 | oname = xmalloc (20); |
252b5132 RH |
2150 | sprintf (oname, "d%06d.o", tmp_seq); |
2151 | tmp_seq++; | |
2152 | ||
2153 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2154 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2155 | bfd_make_writable (abfd); |
2156 | ||
2157 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2158 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2159 | |
2160 | symptr = 0; | |
1579bae1 | 2161 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
2162 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
2163 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2164 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 2165 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 | 2166 | |
fd361982 | 2167 | bfd_set_section_size (id4, PE_IDATA4_SIZE); |
99ad8390 | 2168 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 2169 | id4->contents = d4; |
99ad8390 | 2170 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 | 2171 | |
fd361982 | 2172 | bfd_set_section_size (id5, PE_IDATA5_SIZE); |
99ad8390 | 2173 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 2174 | id5->contents = d5; |
99ad8390 | 2175 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 2176 | |
d643799d | 2177 | len = strlen (dll_filename) + 1; |
252b5132 | 2178 | if (len & 1) |
d643799d | 2179 | len++; |
fd361982 | 2180 | bfd_set_section_size (id7, len); |
1579bae1 | 2181 | d7 = xmalloc (len); |
252b5132 | 2182 | id7->contents = d7; |
47639182 | 2183 | strcpy ((char *) d7, dll_filename); |
e916811a CF |
2184 | /* If len was odd, the above |
2185 | strcpy leaves behind an undefined byte. That is harmless, | |
2186 | but we set it to 0 just so the binary dumps are pretty. */ | |
2187 | d7[len - 1] = 0; | |
252b5132 RH |
2188 | |
2189 | bfd_set_symtab (abfd, symtab, symptr); | |
2190 | ||
99ad8390 NC |
2191 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
2192 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
252b5132 RH |
2193 | bfd_set_section_contents (abfd, id7, d7, 0, len); |
2194 | ||
2195 | bfd_make_readable (abfd); | |
2196 | return abfd; | |
2197 | } | |
2198 | ||
775cabad | 2199 | /* .text |
6c19b93b AM |
2200 | .global _function |
2201 | .global ___imp_function | |
2202 | .global __imp__function | |
775cabad | 2203 | _function: |
6c19b93b | 2204 | jmp *__imp__function: |
b7a26f91 | 2205 | |
6c19b93b AM |
2206 | .section idata$7 |
2207 | .long __head_my_dll | |
b7a26f91 | 2208 | |
6c19b93b | 2209 | .section .idata$5 |
775cabad NC |
2210 | ___imp_function: |
2211 | __imp__function: | |
2212 | iat? | |
6c19b93b | 2213 | .section .idata$4 |
775cabad | 2214 | iat? |
6c19b93b | 2215 | .section .idata$6 |
775cabad | 2216 | ID<ordinal>: |
6c19b93b AM |
2217 | .short <hint> |
2218 | .asciz "function" xlate? (add underscore, kill at) */ | |
775cabad | 2219 | |
e916811a | 2220 | static const unsigned char jmp_ix86_bytes[] = |
775cabad | 2221 | { |
252b5132 RH |
2222 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
2223 | }; | |
2224 | ||
775cabad | 2225 | /* _function: |
6c19b93b AM |
2226 | mov.l ip+8,r0 |
2227 | mov.l @r0,r0 | |
2228 | jmp @r0 | |
2229 | nop | |
2230 | .dw __imp_function */ | |
344a211f | 2231 | |
e916811a | 2232 | static const unsigned char jmp_sh_bytes[] = |
775cabad | 2233 | { |
344a211f NC |
2234 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
2235 | }; | |
2236 | ||
775cabad | 2237 | /* _function: |
6c19b93b AM |
2238 | lui $t0,<high:__imp_function> |
2239 | lw $t0,<low:__imp_function> | |
2240 | jr $t0 | |
2241 | nop */ | |
344a211f | 2242 | |
e916811a | 2243 | static const unsigned char jmp_mips_bytes[] = |
775cabad | 2244 | { |
344a211f NC |
2245 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
2246 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
2247 | }; | |
252b5132 | 2248 | |
e916811a | 2249 | static const unsigned char jmp_arm_bytes[] = |
53baae48 NC |
2250 | { |
2251 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
2252 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
2253 | 0, 0, 0, 0 | |
2254 | }; | |
2255 | ||
2256 | ||
252b5132 | 2257 | static bfd * |
54727719 | 2258 | make_one (def_file_export *exp, bfd *parent, bfd_boolean include_jmp_stub) |
252b5132 RH |
2259 | { |
2260 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 2261 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
2262 | int len; |
2263 | char *oname; | |
2264 | bfd *abfd; | |
e916811a | 2265 | const unsigned char *jmp_bytes = NULL; |
f0c87f88 | 2266 | int jmp_byte_count = 0; |
c6c37250 | 2267 | |
54727719 NC |
2268 | /* Include the jump stub section only if it is needed. A jump |
2269 | stub is needed if the symbol being imported <sym> is a function | |
2270 | symbol and there is at least one undefined reference to that | |
2271 | symbol. In other words, if all the import references to <sym> are | |
2272 | explicitly through _declspec(dllimport) then the jump stub is not | |
2273 | needed. */ | |
2274 | if (include_jmp_stub) | |
c6c37250 | 2275 | { |
54727719 NC |
2276 | switch (pe_details->pe_arch) |
2277 | { | |
2278 | case PE_ARCH_i386: | |
2279 | jmp_bytes = jmp_ix86_bytes; | |
2280 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
2281 | break; | |
2282 | case PE_ARCH_sh: | |
2283 | jmp_bytes = jmp_sh_bytes; | |
2284 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
2285 | break; | |
2286 | case PE_ARCH_mips: | |
2287 | jmp_bytes = jmp_mips_bytes; | |
2288 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
2289 | break; | |
2290 | case PE_ARCH_arm: | |
54727719 NC |
2291 | case PE_ARCH_arm_wince: |
2292 | jmp_bytes = jmp_arm_bytes; | |
2293 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
2294 | break; | |
2295 | default: | |
2296 | abort (); | |
2297 | } | |
c6c37250 | 2298 | } |
252b5132 | 2299 | |
1579bae1 | 2300 | oname = xmalloc (20); |
252b5132 RH |
2301 | sprintf (oname, "d%06d.o", tmp_seq); |
2302 | tmp_seq++; | |
2303 | ||
2304 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2305 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2306 | bfd_make_writable (abfd); |
2307 | ||
2308 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2309 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2310 | |
2311 | symptr = 0; | |
17299ac7 NC |
2312 | symtab = xmalloc (12 * sizeof (asymbol *)); |
2313 | ||
2314 | tx = quick_section (abfd, ".text", SEC_CODE | SEC_HAS_CONTENTS | SEC_READONLY, 2); | |
252b5132 RH |
2315 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); |
2316 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2317 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
2318 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 2319 | |
c9e38879 NC |
2320 | if (*exp->internal_name == '@') |
2321 | { | |
1579bae1 AM |
2322 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2323 | BSF_GLOBAL, 0); | |
54727719 | 2324 | if (include_jmp_stub) |
4b7f0676 | 2325 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); |
00479ba8 | 2326 | quick_symbol (abfd, "__imp_", exp->internal_name, "", id5, |
1579bae1 | 2327 | BSF_GLOBAL, 0); |
c9e38879 NC |
2328 | /* Fastcall applies only to functions, |
2329 | so no need for auto-import symbol. */ | |
2330 | } | |
2331 | else | |
2332 | { | |
4b7f0676 NC |
2333 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2334 | BSF_GLOBAL, 0); | |
54727719 | 2335 | if (include_jmp_stub) |
1579bae1 AM |
2336 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
2337 | BSF_GLOBAL, 0); | |
00479ba8 | 2338 | quick_symbol (abfd, "__imp_", U (""), exp->internal_name, id5, |
1579bae1 | 2339 | BSF_GLOBAL, 0); |
c9e38879 | 2340 | /* Symbol to reference ord/name of imported |
1579bae1 | 2341 | data symbol, used to implement auto-import. */ |
c9e38879 | 2342 | if (exp->flag_data) |
17f73277 | 2343 | quick_symbol (abfd, "__nm_", U (""), exp->internal_name, id6, |
1579bae1 | 2344 | BSF_GLOBAL,0); |
c9e38879 | 2345 | } |
870df5dc | 2346 | if (pe_dll_compat_implib) |
17f73277 | 2347 | quick_symbol (abfd, "___imp_", exp->internal_name, "", id5, |
1579bae1 | 2348 | BSF_GLOBAL, 0); |
252b5132 | 2349 | |
54727719 | 2350 | if (include_jmp_stub) |
775cabad | 2351 | { |
fd361982 | 2352 | bfd_set_section_size (tx, jmp_byte_count); |
1579bae1 | 2353 | td = xmalloc (jmp_byte_count); |
775cabad NC |
2354 | tx->contents = td; |
2355 | memcpy (td, jmp_bytes, jmp_byte_count); | |
2356 | ||
2357 | switch (pe_details->pe_arch) | |
2358 | { | |
2359 | case PE_ARCH_i386: | |
591a748a NC |
2360 | #ifdef pe_use_x86_64 |
2361 | quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2); | |
2362 | #else | |
17299ac7 NC |
2363 | /* Mark this object as SAFESEH compatible. */ |
2364 | quick_symbol (abfd, "", "@feat.00", "", bfd_abs_section_ptr, | |
2365 | BSF_LOCAL, 1); | |
6c19b93b | 2366 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); |
591a748a | 2367 | #endif |
775cabad NC |
2368 | break; |
2369 | case PE_ARCH_sh: | |
2370 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
2371 | break; | |
2372 | case PE_ARCH_mips: | |
2373 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
2374 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
2375 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
2376 | break; | |
53baae48 | 2377 | case PE_ARCH_arm: |
6c19b93b | 2378 | case PE_ARCH_arm_wince: |
53baae48 NC |
2379 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
2380 | break; | |
775cabad NC |
2381 | default: |
2382 | abort (); | |
2383 | } | |
2384 | save_relocs (tx); | |
2385 | } | |
54727719 | 2386 | else |
fd361982 | 2387 | bfd_set_section_size (tx, 0); |
252b5132 | 2388 | |
fd361982 | 2389 | bfd_set_section_size (id7, 4); |
1579bae1 | 2390 | d7 = xmalloc (4); |
252b5132 RH |
2391 | id7->contents = d7; |
2392 | memset (d7, 0, 4); | |
4b7f0676 | 2393 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
2394 | save_relocs (id7); |
2395 | ||
fd361982 | 2396 | bfd_set_section_size (id5, PE_IDATA5_SIZE); |
99ad8390 | 2397 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 2398 | id5->contents = d5; |
99ad8390 | 2399 | memset (d5, 0, PE_IDATA5_SIZE); |
775cabad | 2400 | |
252b5132 RH |
2401 | if (exp->flag_noname) |
2402 | { | |
2403 | d5[0] = exp->ordinal; | |
2404 | d5[1] = exp->ordinal >> 8; | |
99ad8390 | 2405 | d5[PE_IDATA5_SIZE - 1] = 0x80; |
252b5132 RH |
2406 | } |
2407 | else | |
2408 | { | |
2409 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2410 | save_relocs (id5); | |
2411 | } | |
2412 | ||
fd361982 | 2413 | bfd_set_section_size (id4, PE_IDATA4_SIZE); |
99ad8390 | 2414 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 2415 | id4->contents = d4; |
99ad8390 | 2416 | memset (d4, 0, PE_IDATA4_SIZE); |
775cabad | 2417 | |
252b5132 RH |
2418 | if (exp->flag_noname) |
2419 | { | |
c2a94a7a DD |
2420 | d4[0] = exp->ordinal; |
2421 | d4[1] = exp->ordinal >> 8; | |
99ad8390 | 2422 | d4[PE_IDATA4_SIZE - 1] = 0x80; |
252b5132 RH |
2423 | } |
2424 | else | |
2425 | { | |
2426 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2427 | save_relocs (id4); | |
2428 | } | |
2429 | ||
2430 | if (exp->flag_noname) | |
2431 | { | |
2432 | len = 0; | |
fd361982 | 2433 | bfd_set_section_size (id6, 0); |
252b5132 RH |
2434 | } |
2435 | else | |
2436 | { | |
4ee1d7e4 R |
2437 | int ord; |
2438 | ||
e916811a | 2439 | /* { short, asciz } */ |
7fcab871 KT |
2440 | if (exp->its_name) |
2441 | len = 2 + strlen (exp->its_name) + 1; | |
2442 | else | |
2443 | len = 2 + strlen (exp->name) + 1; | |
252b5132 RH |
2444 | if (len & 1) |
2445 | len++; | |
fd361982 | 2446 | bfd_set_section_size (id6, len); |
1579bae1 | 2447 | d6 = xmalloc (len); |
252b5132 RH |
2448 | id6->contents = d6; |
2449 | memset (d6, 0, len); | |
4ee1d7e4 R |
2450 | |
2451 | /* PR 20880: Use exp->hint as a backup, just in case exp->ordinal | |
2452 | contains an invalid value (-1). */ | |
2453 | ord = (exp->ordinal >= 0) ? exp->ordinal : exp->hint; | |
2454 | d6[0] = ord; | |
2455 | d6[1] = ord >> 8; | |
2456 | ||
7fcab871 KT |
2457 | if (exp->its_name) |
2458 | strcpy ((char*) d6 + 2, exp->its_name); | |
2459 | else | |
2460 | strcpy ((char *) d6 + 2, exp->name); | |
252b5132 RH |
2461 | } |
2462 | ||
2463 | bfd_set_symtab (abfd, symtab, symptr); | |
2464 | ||
54727719 NC |
2465 | if (include_jmp_stub) |
2466 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); | |
252b5132 | 2467 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
99ad8390 NC |
2468 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
2469 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
252b5132 RH |
2470 | if (!exp->flag_noname) |
2471 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
2472 | ||
2473 | bfd_make_readable (abfd); | |
2474 | return abfd; | |
2475 | } | |
2476 | ||
b044cda1 | 2477 | static bfd * |
1579bae1 | 2478 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2479 | { |
775cabad | 2480 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2481 | asection *id4; |
2482 | unsigned char *d4; | |
2483 | char *oname; | |
2484 | bfd *abfd; | |
2485 | ||
1579bae1 | 2486 | oname = xmalloc (20); |
b044cda1 CW |
2487 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2488 | tmp_seq++; | |
2489 | ||
2490 | abfd = bfd_create (oname, parent); | |
2491 | bfd_find_target (pe_details->object_target, abfd); | |
2492 | bfd_make_writable (abfd); | |
2493 | ||
2494 | bfd_set_format (abfd, bfd_object); | |
2495 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2496 | ||
2497 | symptr = 0; | |
1579bae1 | 2498 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 | 2499 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
17f73277 KT |
2500 | quick_symbol (abfd, "__nm_thnk_", import, "", id4, BSF_GLOBAL, 0); |
2501 | quick_symbol (abfd, "__nm_", import, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2502 | |
4e986257 | 2503 | /* We need space for the real thunk and for the null terminator. */ |
fd361982 | 2504 | bfd_set_section_size (id4, PE_IDATA4_SIZE * 2); |
4e986257 | 2505 | d4 = xmalloc (PE_IDATA4_SIZE * 2); |
b044cda1 | 2506 | id4->contents = d4; |
4e986257 | 2507 | memset (d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2508 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2509 | save_relocs (id4); | |
2510 | ||
2511 | bfd_set_symtab (abfd, symtab, symptr); | |
2512 | ||
4e986257 | 2513 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2514 | |
2515 | bfd_make_readable (abfd); | |
2516 | return abfd; | |
2517 | } | |
2518 | ||
317ff008 | 2519 | static const char * |
fbea1508 | 2520 | make_import_fixup_mark (arelent *rel, char *name) |
b044cda1 | 2521 | { |
775cabad | 2522 | /* We convert reloc to symbol, for later reference. */ |
fbea1508 | 2523 | static unsigned int counter; |
fc0a2244 | 2524 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2525 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2526 | struct bfd_link_hash_entry *bh; |
fbea1508 AM |
2527 | char *fixup_name, buf[26]; |
2528 | size_t prefix_len; | |
b044cda1 | 2529 | |
fbea1508 AM |
2530 | /* "name" buffer has space before the symbol name for prefixes. */ |
2531 | sprintf (buf, "__fu%d_", counter++); | |
2532 | prefix_len = strlen (buf); | |
2533 | fixup_name = name - prefix_len; | |
2534 | memcpy (fixup_name, buf, prefix_len); | |
b044cda1 | 2535 | |
fe213ce2 | 2536 | bh = NULL; |
b7a26f91 | 2537 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2538 | current_sec, /* sym->section, */ |
b34976b6 | 2539 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 | 2540 | |
317ff008 | 2541 | return bh->root.string; |
b044cda1 CW |
2542 | } |
2543 | ||
53baae48 | 2544 | /* .section .idata$2 |
6c19b93b AM |
2545 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2546 | .long 0 | |
2547 | .long 0 | |
2548 | .rva __my_dll_iname (name of dll) | |
2549 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2550 | |
2551 | static bfd * | |
1579bae1 AM |
2552 | make_import_fixup_entry (const char *name, |
2553 | const char *fixup_name, | |
91d6fa6a | 2554 | const char *symname, |
1579bae1 | 2555 | bfd *parent) |
b044cda1 | 2556 | { |
53baae48 NC |
2557 | asection *id2; |
2558 | unsigned char *d2; | |
b044cda1 CW |
2559 | char *oname; |
2560 | bfd *abfd; | |
2561 | ||
1579bae1 | 2562 | oname = xmalloc (20); |
b044cda1 CW |
2563 | sprintf (oname, "fu%06d.o", tmp_seq); |
2564 | tmp_seq++; | |
2565 | ||
2566 | abfd = bfd_create (oname, parent); | |
2567 | bfd_find_target (pe_details->object_target, abfd); | |
2568 | bfd_make_writable (abfd); | |
2569 | ||
2570 | bfd_set_format (abfd, bfd_object); | |
2571 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2572 | ||
2573 | symptr = 0; | |
1579bae1 | 2574 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2575 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2576 | |
17f73277 | 2577 | quick_symbol (abfd, "__nm_thnk_", name, "", UNDSEC, BSF_GLOBAL, 0); |
91d6fa6a | 2578 | quick_symbol (abfd, U (""), symname, "_iname", UNDSEC, BSF_GLOBAL, 0); |
317ff008 | 2579 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); |
b044cda1 | 2580 | |
fd361982 | 2581 | bfd_set_section_size (id2, 20); |
53baae48 NC |
2582 | d2 = xmalloc (20); |
2583 | id2->contents = d2; | |
2584 | memset (d2, 0, 20); | |
b044cda1 CW |
2585 | |
2586 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2587 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2588 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2589 | save_relocs (id2); |
b044cda1 CW |
2590 | |
2591 | bfd_set_symtab (abfd, symtab, symptr); | |
2592 | ||
53baae48 | 2593 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2594 | |
2595 | bfd_make_readable (abfd); | |
2596 | return abfd; | |
2597 | } | |
2598 | ||
2fa9fc65 | 2599 | /* .section .rdata_runtime_pseudo_reloc |
6c19b93b AM |
2600 | .long addend |
2601 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2fa9fc65 NC |
2602 | |
2603 | static bfd * | |
1579bae1 AM |
2604 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2605 | const char *fixup_name, | |
6cb442d3 KT |
2606 | bfd_vma addend ATTRIBUTE_UNUSED, |
2607 | bfd_vma bitsize, | |
1579bae1 | 2608 | bfd *parent) |
2fa9fc65 NC |
2609 | { |
2610 | asection *rt_rel; | |
2611 | unsigned char *rt_rel_d; | |
2612 | char *oname; | |
2613 | bfd *abfd; | |
317ff008 EB |
2614 | bfd_size_type size; |
2615 | ||
1579bae1 | 2616 | oname = xmalloc (20); |
2fa9fc65 NC |
2617 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2618 | tmp_seq++; | |
2619 | ||
2620 | abfd = bfd_create (oname, parent); | |
2621 | bfd_find_target (pe_details->object_target, abfd); | |
2622 | bfd_make_writable (abfd); | |
2623 | ||
2624 | bfd_set_format (abfd, bfd_object); | |
2625 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2626 | ||
acac4c69 KT |
2627 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2628 | { | |
317ff008 EB |
2629 | if (runtime_pseudp_reloc_v2_init) |
2630 | size = 3 * sizeof (asymbol *); | |
2631 | else | |
2632 | size = 6 * sizeof (asymbol *); | |
acac4c69 KT |
2633 | } |
2634 | else | |
317ff008 EB |
2635 | size = 2 * sizeof (asymbol *); |
2636 | ||
2637 | symptr = 0; | |
2638 | symtab = xmalloc (size); | |
2639 | ||
2640 | rt_rel | |
2641 | = quick_section (abfd, ".rdata_runtime_pseudo_reloc", SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2642 | |
2643 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2644 | ||
6cb442d3 KT |
2645 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2646 | { | |
317ff008 EB |
2647 | size = 12; |
2648 | if (!runtime_pseudp_reloc_v2_init) | |
2649 | { | |
2650 | size += 12; | |
2651 | runtime_pseudp_reloc_v2_init = TRUE; | |
2652 | } | |
2653 | ||
17f73277 | 2654 | quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0); |
6cb442d3 | 2655 | |
fd361982 | 2656 | bfd_set_section_size (rt_rel, size); |
6cb442d3 KT |
2657 | rt_rel_d = xmalloc (size); |
2658 | rt_rel->contents = rt_rel_d; | |
2659 | memset (rt_rel_d, 0, size); | |
317ff008 EB |
2660 | quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1); |
2661 | quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2); | |
2662 | bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4)); | |
2663 | if (size != 12) | |
2664 | bfd_put_32 (abfd, 1, rt_rel_d + 8); | |
6cb442d3 KT |
2665 | save_relocs (rt_rel); |
2666 | ||
2667 | bfd_set_symtab (abfd, symtab, symptr); | |
2668 | ||
2669 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, size); | |
317ff008 | 2670 | } |
6cb442d3 | 2671 | else |
317ff008 | 2672 | { |
fd361982 | 2673 | bfd_set_section_size (rt_rel, 8); |
6cb442d3 KT |
2674 | rt_rel_d = xmalloc (8); |
2675 | rt_rel->contents = rt_rel_d; | |
2676 | memset (rt_rel_d, 0, 8); | |
2fa9fc65 | 2677 | |
6cb442d3 KT |
2678 | bfd_put_32 (abfd, addend, rt_rel_d); |
2679 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2fa9fc65 | 2680 | |
6cb442d3 | 2681 | save_relocs (rt_rel); |
2fa9fc65 | 2682 | |
6cb442d3 | 2683 | bfd_set_symtab (abfd, symtab, symptr); |
2fa9fc65 | 2684 | |
6cb442d3 KT |
2685 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); |
2686 | } | |
317ff008 | 2687 | |
2fa9fc65 NC |
2688 | bfd_make_readable (abfd); |
2689 | return abfd; | |
2690 | } | |
2691 | ||
2692 | /* .section .rdata | |
6c19b93b | 2693 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2694 | |
2695 | static bfd * | |
1579bae1 | 2696 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2697 | { |
2698 | asection *extern_rt_rel; | |
2699 | unsigned char *extern_rt_rel_d; | |
2700 | char *oname; | |
2701 | bfd *abfd; | |
2702 | ||
1579bae1 | 2703 | oname = xmalloc (20); |
2fa9fc65 NC |
2704 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2705 | tmp_seq++; | |
2706 | ||
2707 | abfd = bfd_create (oname, parent); | |
2708 | bfd_find_target (pe_details->object_target, abfd); | |
2709 | bfd_make_writable (abfd); | |
2710 | ||
2711 | bfd_set_format (abfd, bfd_object); | |
2712 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2713 | ||
2714 | symptr = 0; | |
1579bae1 | 2715 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2716 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2717 | ||
00479ba8 | 2718 | quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC, |
1579bae1 | 2719 | BSF_NO_FLAGS, 0); |
2fa9fc65 | 2720 | |
fd361982 | 2721 | bfd_set_section_size (extern_rt_rel, PE_IDATA5_SIZE); |
8d5c4b7b | 2722 | extern_rt_rel_d = xcalloc (1, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2723 | extern_rt_rel->contents = extern_rt_rel_d; |
2724 | ||
2725 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2726 | save_relocs (extern_rt_rel); | |
2727 | ||
2728 | bfd_set_symtab (abfd, symtab, symptr); | |
2729 | ||
9382254d | 2730 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2731 | |
2732 | bfd_make_readable (abfd); | |
2733 | return abfd; | |
2734 | } | |
2735 | ||
b044cda1 | 2736 | void |
317ff008 EB |
2737 | pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend, char *name, |
2738 | const char *symname) | |
b044cda1 | 2739 | { |
317ff008 | 2740 | const char *fixup_name = make_import_fixup_mark (rel, name); |
2fa9fc65 | 2741 | bfd *b; |
b044cda1 | 2742 | |
317ff008 EB |
2743 | /* This is the original implementation of the auto-import feature, which |
2744 | primarily relied on the OS loader to patch things up with some help | |
2745 | from the pseudo-relocator to overcome the main limitation. See the | |
2746 | comment at the beginning of the file for an overview of the feature. */ | |
2747 | if (link_info.pei386_runtime_pseudo_reloc != 2) | |
b044cda1 | 2748 | { |
317ff008 EB |
2749 | struct bfd_link_hash_entry *name_thunk_sym; |
2750 | /* name buffer is allocated with space at beginning for prefixes. */ | |
2751 | char *thname = name - (sizeof "__nm_thnk_" - 1); | |
2752 | memcpy (thname, "__nm_thnk_", sizeof "__nm_thnk_" - 1); | |
2753 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, thname, 0, 0, 1); | |
b044cda1 | 2754 | |
317ff008 | 2755 | if (!(name_thunk_sym && name_thunk_sym->type == bfd_link_hash_defined)) |
6c19b93b | 2756 | { |
317ff008 EB |
2757 | b = make_singleton_name_thunk (name, link_info.output_bfd); |
2758 | add_bfd_to_link (b, b->filename, &link_info); | |
2759 | ||
2760 | /* If we ever use autoimport, we have to cast text section writable. */ | |
6c19b93b AM |
2761 | config.text_read_only = FALSE; |
2762 | link_info.output_bfd->flags &= ~WP_TEXT; | |
2763 | } | |
317ff008 EB |
2764 | |
2765 | if (addend == 0 || link_info.pei386_runtime_pseudo_reloc == 1) | |
6c19b93b | 2766 | { |
317ff008 EB |
2767 | b = make_import_fixup_entry (name, fixup_name, symname, |
2768 | link_info.output_bfd); | |
6c19b93b | 2769 | add_bfd_to_link (b, b->filename, &link_info); |
9382254d | 2770 | } |
b044cda1 CW |
2771 | } |
2772 | ||
317ff008 EB |
2773 | /* In the original implementation, the pseudo-relocator was only used when |
2774 | the addend was not null. In the new implementation, the OS loader is | |
2775 | completely bypassed and the pseudo-relocator does the entire work. */ | |
2776 | if ((addend != 0 && link_info.pei386_runtime_pseudo_reloc == 1) | |
6c19b93b AM |
2777 | || link_info.pei386_runtime_pseudo_reloc == 2) |
2778 | { | |
2779 | if (pe_dll_extra_pe_debug) | |
2780 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2781 | fixup_name, (int) addend); | |
6cb442d3 | 2782 | |
6c19b93b AM |
2783 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, rel->howto->bitsize, |
2784 | link_info.output_bfd); | |
2785 | add_bfd_to_link (b, b->filename, &link_info); | |
6cb442d3 | 2786 | |
317ff008 | 2787 | if (runtime_pseudo_relocs_created++ == 0) |
6c19b93b AM |
2788 | { |
2789 | b = pe_create_runtime_relocator_reference (link_info.output_bfd); | |
2790 | add_bfd_to_link (b, b->filename, &link_info); | |
2791 | } | |
6c19b93b | 2792 | } |
317ff008 | 2793 | |
6c19b93b | 2794 | else if (addend != 0) |
df5f2391 | 2795 | 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 | 2796 | s->owner, s, rel->address, (*rel->sym_ptr_ptr)->name); |
b044cda1 CW |
2797 | } |
2798 | ||
252b5132 | 2799 | void |
e1c37eb5 | 2800 | pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info) |
252b5132 RH |
2801 | { |
2802 | int i; | |
2803 | bfd *ar_head; | |
2804 | bfd *ar_tail; | |
2805 | bfd *outarch; | |
e1c37eb5 | 2806 | bfd *ibfd; |
252b5132 RH |
2807 | bfd *head = 0; |
2808 | ||
5aaace27 | 2809 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2810 | dll_symname = xstrdup (dll_filename); |
d643799d | 2811 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2812 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2813 | dll_symname[i] = '_'; |
2814 | ||
bb14f524 | 2815 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2816 | |
2817 | outarch = bfd_openw (impfilename, 0); | |
2818 | ||
2819 | if (!outarch) | |
2820 | { | |
2821 | /* xgettext:c-format */ | |
df5f2391 | 2822 | einfo (_("%X%P: can't open .lib file: %s\n"), impfilename); |
252b5132 RH |
2823 | return; |
2824 | } | |
2825 | ||
cd6f1cf3 NC |
2826 | if (verbose) |
2827 | /* xgettext:c-format */ | |
2828 | info_msg (_("Creating library file: %s\n"), impfilename); | |
9382254d | 2829 | |
252b5132 RH |
2830 | bfd_set_format (outarch, bfd_archive); |
2831 | outarch->has_armap = 1; | |
2832 | ||
5cc18311 | 2833 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2834 | ar_head = make_head (outarch); |
252b5132 | 2835 | |
e1c37eb5 | 2836 | /* Iterate the input BFDs, looking for exclude-modules-for-implib. */ |
c72f2fb2 | 2837 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next) |
e1c37eb5 DK |
2838 | { |
2839 | /* Iterate the exclude list. */ | |
2840 | struct exclude_list_struct *ex; | |
2841 | char found; | |
2842 | for (ex = excludes, found = 0; ex && !found; ex = ex->next) | |
2843 | { | |
2844 | if (ex->type != EXCLUDEFORIMPLIB) | |
2845 | continue; | |
42627821 | 2846 | found = (filename_cmp (ex->string, ibfd->filename) == 0); |
e1c37eb5 DK |
2847 | } |
2848 | /* If it matched, we must open a fresh BFD for it (the original | |
6c19b93b AM |
2849 | input BFD is still needed for the DLL's final link) and add |
2850 | it into the archive member chain. */ | |
e1c37eb5 DK |
2851 | if (found) |
2852 | { | |
9382254d | 2853 | bfd *newbfd = bfd_openr (ibfd->my_archive |
e1c37eb5 DK |
2854 | ? ibfd->my_archive->filename : ibfd->filename, NULL); |
2855 | if (!newbfd) | |
2856 | { | |
df5f2391 | 2857 | einfo (_("%X%P: bfd_openr %s: %E\n"), ibfd->filename); |
e1c37eb5 DK |
2858 | return; |
2859 | } | |
2860 | if (ibfd->my_archive) | |
2861 | { | |
2862 | /* Must now iterate through archive until we find the | |
2863 | required member. A minor shame that we'll open the | |
2864 | archive once per member that we require from it, and | |
2865 | leak those archive bfds rather than reuse them. */ | |
2866 | bfd *arbfd = newbfd; | |
2867 | if (!bfd_check_format_matches (arbfd, bfd_archive, NULL)) | |
2868 | { | |
df5f2391 | 2869 | einfo (_("%X%P: %s(%s): can't find member in non-archive file"), |
e1c37eb5 DK |
2870 | ibfd->my_archive->filename, ibfd->filename); |
2871 | return; | |
2872 | } | |
2873 | newbfd = NULL; | |
2874 | while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0) | |
2875 | { | |
42627821 | 2876 | if (filename_cmp (newbfd->filename, ibfd->filename) == 0) |
e1c37eb5 DK |
2877 | break; |
2878 | } | |
2879 | if (!newbfd) | |
2880 | { | |
df5f2391 | 2881 | einfo (_("%X%P: %s(%s): can't find member in archive"), |
e1c37eb5 DK |
2882 | ibfd->my_archive->filename, ibfd->filename); |
2883 | return; | |
2884 | } | |
2885 | } | |
2886 | newbfd->archive_next = head; | |
2887 | head = newbfd; | |
2888 | } | |
2889 | } | |
2890 | ||
d643799d | 2891 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2892 | { |
86b1cc60 | 2893 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2894 | char *internal = def->exports[i].internal_name; |
2895 | bfd *n; | |
775cabad | 2896 | |
9382254d | 2897 | /* Don't add PRIVATE entries to import lib. */ |
ee31fbd0 NC |
2898 | if (pe_def_file->exports[i].flag_private) |
2899 | continue; | |
41f46ed9 | 2900 | |
252b5132 | 2901 | def->exports[i].internal_name = def->exports[i].name; |
41f46ed9 SKS |
2902 | |
2903 | /* PR 19803: If a symbol has been discard due to garbage | |
2904 | collection then do not create any exports for it. */ | |
2905 | { | |
2906 | struct coff_link_hash_entry *h; | |
2907 | ||
2908 | h = coff_link_hash_lookup (coff_hash_table (info), internal, | |
2909 | FALSE, FALSE, FALSE); | |
2910 | if (h != NULL | |
2911 | /* If the symbol is hidden and undefined then it | |
2912 | has been swept up by garbage collection. */ | |
2913 | && h->symbol_class == C_HIDDEN | |
2914 | && h->root.u.def.section == bfd_und_section_ptr) | |
2915 | continue; | |
2916 | ||
2917 | /* If necessary, check with an underscore prefix as well. */ | |
2918 | if (pe_details->underscored && internal[0] != '@') | |
2919 | { | |
2920 | char *name; | |
2921 | ||
2922 | name = xmalloc (strlen (internal) + 2); | |
2923 | sprintf (name, "_%s", internal); | |
2924 | ||
2925 | h = coff_link_hash_lookup (coff_hash_table (info), name, | |
2926 | FALSE, FALSE, FALSE); | |
2927 | free (name); | |
2928 | ||
2929 | if (h != NULL | |
2930 | /* If the symbol is hidden and undefined then it | |
2931 | has been swept up by garbage collection. */ | |
2932 | && h->symbol_class == C_HIDDEN | |
2933 | && h->root.u.def.section == bfd_und_section_ptr) | |
2934 | continue; | |
2935 | } | |
2936 | } | |
2937 | ||
54727719 NC |
2938 | n = make_one (def->exports + i, outarch, |
2939 | ! (def->exports + i)->flag_data); | |
cc481421 | 2940 | n->archive_next = head; |
252b5132 RH |
2941 | head = n; |
2942 | def->exports[i].internal_name = internal; | |
2943 | } | |
2944 | ||
c6c37250 DD |
2945 | ar_tail = make_tail (outarch); |
2946 | ||
2947 | if (ar_head == NULL || ar_tail == NULL) | |
2948 | return; | |
2949 | ||
86b1cc60 | 2950 | /* Now stick them all into the archive. */ |
cc481421 AM |
2951 | ar_head->archive_next = head; |
2952 | ar_tail->archive_next = ar_head; | |
252b5132 RH |
2953 | head = ar_tail; |
2954 | ||
2955 | if (! bfd_set_archive_head (outarch, head)) | |
df5f2391 | 2956 | einfo ("%X%P: bfd_set_archive_head: %E\n"); |
5cc18311 | 2957 | |
252b5132 | 2958 | if (! bfd_close (outarch)) |
df5f2391 | 2959 | einfo ("%X%P: bfd_close %s: %E\n", impfilename); |
252b5132 RH |
2960 | |
2961 | while (head != NULL) | |
2962 | { | |
cc481421 | 2963 | bfd *n = head->archive_next; |
252b5132 RH |
2964 | bfd_close (head); |
2965 | head = n; | |
2966 | } | |
2967 | } | |
2968 | ||
aeb1f0e8 KT |
2969 | static int undef_count = 0; |
2970 | ||
2971 | struct key_value | |
2972 | { | |
2973 | char *key; | |
2974 | const char *oname; | |
2975 | }; | |
2976 | ||
d66ac08f | 2977 | static struct key_value *udef_table; |
aeb1f0e8 KT |
2978 | |
2979 | static int undef_sort_cmp (const void *l1, const void *r1) | |
2980 | { | |
2981 | const struct key_value *l = l1; | |
2982 | const struct key_value *r = r1; | |
2983 | ||
2984 | return strcmp (l->key, r->key); | |
2985 | } | |
2986 | ||
2987 | static struct bfd_link_hash_entry * | |
2988 | pe_find_cdecl_alias_match (struct bfd_link_info *linfo, char *name) | |
2989 | { | |
2990 | struct bfd_link_hash_entry *h = NULL; | |
2991 | struct key_value *kv; | |
2992 | struct key_value key; | |
e1fa0163 | 2993 | char *at, *lname = xmalloc (strlen (name) + 3); |
e4492aa0 | 2994 | |
aeb1f0e8 KT |
2995 | strcpy (lname, name); |
2996 | ||
2997 | at = strchr (lname + (lname[0] == '@'), '@'); | |
2998 | if (at) | |
2999 | at[1] = 0; | |
3000 | ||
3001 | key.key = lname; | |
3002 | kv = bsearch (&key, udef_table, undef_count, sizeof (struct key_value), | |
3003 | undef_sort_cmp); | |
3004 | ||
3005 | if (kv) | |
3006 | { | |
3007 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
3008 | if (h->type == bfd_link_hash_undefined) | |
6c19b93b | 3009 | goto return_h; |
aeb1f0e8 | 3010 | } |
e1fa0163 | 3011 | |
aeb1f0e8 | 3012 | if (lname[0] == '?') |
e1fa0163 NC |
3013 | goto return_NULL; |
3014 | ||
aeb1f0e8 KT |
3015 | if (at || lname[0] == '@') |
3016 | { | |
3017 | if (lname[0] == '@') | |
6c19b93b | 3018 | { |
aeb1f0e8 KT |
3019 | if (pe_details->underscored) |
3020 | lname[0] = '_'; | |
3021 | else | |
3022 | strcpy (lname, lname + 1); | |
3023 | key.key = lname; | |
3024 | kv = bsearch (&key, udef_table, undef_count, | |
3025 | sizeof (struct key_value), undef_sort_cmp); | |
3026 | if (kv) | |
3027 | { | |
3028 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
3029 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 3030 | goto return_h; |
aeb1f0e8 KT |
3031 | } |
3032 | } | |
3033 | if (at) | |
6c19b93b | 3034 | *strchr (lname, '@') = 0; |
aeb1f0e8 KT |
3035 | key.key = lname; |
3036 | kv = bsearch (&key, udef_table, undef_count, | |
3037 | sizeof (struct key_value), undef_sort_cmp); | |
3038 | if (kv) | |
3039 | { | |
3040 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
3041 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 3042 | goto return_h; |
aeb1f0e8 | 3043 | } |
e1fa0163 | 3044 | goto return_NULL; |
aeb1f0e8 KT |
3045 | } |
3046 | ||
3047 | strcat (lname, "@"); | |
3048 | key.key = lname; | |
3049 | kv = bsearch (&key, udef_table, undef_count, | |
3050 | sizeof (struct key_value), undef_sort_cmp); | |
3051 | ||
3052 | if (kv) | |
3053 | { | |
3054 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
3055 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 3056 | goto return_h; |
aeb1f0e8 KT |
3057 | } |
3058 | ||
3059 | if (lname[0] == '_' && pe_details->underscored) | |
3060 | lname[0] = '@'; | |
3061 | else | |
3062 | { | |
3063 | memmove (lname + 1, lname, strlen (lname) + 1); | |
3064 | lname[0] = '@'; | |
3065 | } | |
3066 | key.key = lname; | |
3067 | ||
3068 | kv = bsearch (&key, udef_table, undef_count, | |
3069 | sizeof (struct key_value), undef_sort_cmp); | |
3070 | ||
3071 | if (kv) | |
3072 | { | |
3073 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
3074 | if (h->type == bfd_link_hash_undefined) | |
6c19b93b | 3075 | goto return_h; |
aeb1f0e8 | 3076 | } |
e4492aa0 | 3077 | |
e1fa0163 NC |
3078 | return_NULL: |
3079 | h = NULL; | |
3080 | return_h: | |
3081 | free (lname); | |
3082 | return h; | |
aeb1f0e8 | 3083 | } |
8a9eab9b KT |
3084 | |
3085 | static bfd_boolean | |
aeb1f0e8 | 3086 | pe_undef_count (struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED, |
6c19b93b | 3087 | void *inf ATTRIBUTE_UNUSED) |
8a9eab9b | 3088 | { |
aeb1f0e8 KT |
3089 | if (h->type == bfd_link_hash_undefined) |
3090 | undef_count++; | |
3091 | return TRUE; | |
3092 | } | |
3093 | ||
3094 | static bfd_boolean | |
3095 | pe_undef_fill (struct bfd_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
3096 | { | |
3097 | if (h->type == bfd_link_hash_undefined) | |
8a9eab9b | 3098 | { |
aeb1f0e8 KT |
3099 | char *at; |
3100 | ||
3101 | udef_table[undef_count].key = xstrdup (h->root.string); | |
3102 | at = strchr (udef_table[undef_count].key | |
3103 | + (udef_table[undef_count].key[0] == '@'), '@'); | |
3104 | if (at) | |
6c19b93b | 3105 | at[1] = 0; |
aeb1f0e8 KT |
3106 | udef_table[undef_count].oname = h->root.string; |
3107 | undef_count++; | |
8a9eab9b KT |
3108 | } |
3109 | return TRUE; | |
3110 | } | |
3111 | ||
aeb1f0e8 KT |
3112 | static void |
3113 | pe_create_undef_table (void) | |
8a9eab9b | 3114 | { |
aeb1f0e8 KT |
3115 | undef_count = 0; |
3116 | ||
3117 | /* count undefined symbols */ | |
3118 | ||
3119 | bfd_link_hash_traverse (link_info.hash, pe_undef_count, ""); | |
3120 | ||
3121 | /* create and fill the corresponding table */ | |
3122 | udef_table = xmalloc (undef_count * sizeof (struct key_value)); | |
3123 | ||
3124 | undef_count = 0; | |
3125 | bfd_link_hash_traverse (link_info.hash, pe_undef_fill, ""); | |
3126 | ||
3127 | /* sort items */ | |
3128 | qsort (udef_table, undef_count, sizeof (struct key_value), undef_sort_cmp); | |
8a9eab9b KT |
3129 | } |
3130 | ||
252b5132 | 3131 | static void |
91d6fa6a | 3132 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *linfo) |
252b5132 RH |
3133 | { |
3134 | lang_input_statement_type *fake_file; | |
775cabad | 3135 | |
252b5132 RH |
3136 | fake_file = lang_add_input_file (name, |
3137 | lang_input_file_is_fake_enum, | |
3138 | NULL); | |
3139 | fake_file->the_bfd = abfd; | |
3140 | ldlang_add_file (fake_file); | |
775cabad | 3141 | |
91d6fa6a | 3142 | if (!bfd_link_add_symbols (abfd, linfo)) |
df5f2391 | 3143 | einfo (_("%X%P: add symbols %s: %E\n"), name); |
252b5132 RH |
3144 | } |
3145 | ||
3146 | void | |
91d6fa6a | 3147 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *linfo) |
252b5132 | 3148 | { |
6e230cc2 | 3149 | int i, j; |
252b5132 | 3150 | def_file_module *module; |
6e230cc2 | 3151 | def_file_import *imp; |
775cabad | 3152 | |
d643799d | 3153 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
3154 | |
3155 | if (!pe_def_file) | |
3156 | return; | |
3157 | ||
6e230cc2 KT |
3158 | imp = pe_def_file->imports; |
3159 | ||
aeb1f0e8 KT |
3160 | pe_create_undef_table (); |
3161 | ||
252b5132 RH |
3162 | for (module = pe_def_file->modules; module; module = module->next) |
3163 | { | |
6e230cc2 KT |
3164 | int do_this_dll = 0; |
3165 | ||
3166 | for (i = 0; i < pe_def_file->num_imports && imp[i].module != module; i++) | |
3167 | ; | |
3168 | if (i >= pe_def_file->num_imports) | |
6c19b93b | 3169 | continue; |
252b5132 RH |
3170 | |
3171 | dll_filename = module->name; | |
3172 | dll_symname = xstrdup (module->name); | |
6e230cc2 KT |
3173 | for (j = 0; dll_symname[j]; j++) |
3174 | if (!ISALNUM (dll_symname[j])) | |
3175 | dll_symname[j] = '_'; | |
3176 | ||
3177 | for (; i < pe_def_file->num_imports && imp[i].module == module; i++) | |
3178 | { | |
3179 | def_file_export exp; | |
3180 | struct bfd_link_hash_entry *blhe; | |
3181 | int lead_at = (*imp[i].internal_name == '@'); | |
3182 | /* See if we need this import. */ | |
3183 | size_t len = strlen (imp[i].internal_name); | |
3184 | char *name = xmalloc (len + 2 + 6); | |
3185 | bfd_boolean include_jmp_stub = FALSE; | |
3186 | bfd_boolean is_cdecl = FALSE; | |
aeb1f0e8 KT |
3187 | bfd_boolean is_undef = FALSE; |
3188 | ||
6e230cc2 KT |
3189 | if (!lead_at && strchr (imp[i].internal_name, '@') == NULL) |
3190 | is_cdecl = TRUE; | |
3191 | ||
3192 | if (lead_at) | |
3193 | sprintf (name, "%s", imp[i].internal_name); | |
3194 | else | |
3195 | sprintf (name, "%s%s",U (""), imp[i].internal_name); | |
252b5132 | 3196 | |
6e230cc2 KT |
3197 | blhe = bfd_link_hash_lookup (linfo->hash, name, |
3198 | FALSE, FALSE, FALSE); | |
252b5132 | 3199 | |
6e230cc2 KT |
3200 | /* Include the jump stub for <sym> only if the <sym> |
3201 | is undefined. */ | |
3202 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) | |
3203 | { | |
3204 | if (lead_at) | |
3205 | sprintf (name, "%s%s", "__imp_", imp[i].internal_name); | |
3206 | else | |
3207 | sprintf (name, "%s%s%s", "__imp_", U (""), | |
3208 | imp[i].internal_name); | |
3209 | ||
3210 | blhe = bfd_link_hash_lookup (linfo->hash, name, | |
3211 | FALSE, FALSE, FALSE); | |
aeb1f0e8 | 3212 | if (blhe) |
6c19b93b | 3213 | is_undef = (blhe->type == bfd_link_hash_undefined); |
6e230cc2 KT |
3214 | } |
3215 | else | |
aeb1f0e8 KT |
3216 | { |
3217 | include_jmp_stub = TRUE; | |
3218 | is_undef = (blhe->type == bfd_link_hash_undefined); | |
3219 | } | |
6e230cc2 | 3220 | |
aeb1f0e8 | 3221 | if (is_cdecl && (!blhe || (blhe && blhe->type != bfd_link_hash_undefined))) |
6e230cc2 KT |
3222 | { |
3223 | sprintf (name, "%s%s",U (""), imp[i].internal_name); | |
aeb1f0e8 | 3224 | blhe = pe_find_cdecl_alias_match (linfo, name); |
54727719 | 3225 | include_jmp_stub = TRUE; |
aeb1f0e8 | 3226 | if (blhe) |
6c19b93b | 3227 | is_undef = (blhe->type == bfd_link_hash_undefined); |
6e230cc2 | 3228 | } |
54727719 | 3229 | |
6e230cc2 KT |
3230 | free (name); |
3231 | ||
aeb1f0e8 | 3232 | if (is_undef) |
6e230cc2 KT |
3233 | { |
3234 | bfd *one; | |
3235 | /* We do. */ | |
3236 | if (!do_this_dll) | |
3237 | { | |
3238 | bfd *ar_head = make_head (output_bfd); | |
3239 | add_bfd_to_link (ar_head, ar_head->filename, linfo); | |
3240 | do_this_dll = 1; | |
3241 | } | |
3242 | exp.internal_name = imp[i].internal_name; | |
3243 | exp.name = imp[i].name; | |
3244 | exp.its_name = imp[i].its_name; | |
3245 | exp.ordinal = imp[i].ordinal; | |
3246 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
3247 | exp.flag_private = 0; | |
3248 | exp.flag_constant = 0; | |
3249 | exp.flag_data = imp[i].data; | |
3250 | exp.flag_noname = exp.name ? 0 : 1; | |
3251 | one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub); | |
3252 | add_bfd_to_link (one, one->filename, linfo); | |
3253 | } | |
3254 | } | |
252b5132 RH |
3255 | if (do_this_dll) |
3256 | { | |
3257 | bfd *ar_tail = make_tail (output_bfd); | |
91d6fa6a | 3258 | add_bfd_to_link (ar_tail, ar_tail->filename, linfo); |
252b5132 RH |
3259 | } |
3260 | ||
3261 | free (dll_symname); | |
3262 | } | |
aeb1f0e8 KT |
3263 | |
3264 | while (undef_count) | |
3265 | { | |
3266 | --undef_count; | |
3267 | free (udef_table[undef_count].key); | |
3268 | } | |
3269 | free (udef_table); | |
252b5132 RH |
3270 | } |
3271 | ||
775cabad | 3272 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
3273 | IMPORTS directives in the def file. Return TRUE if the file was |
3274 | handled, FALSE if not. */ | |
252b5132 RH |
3275 | |
3276 | static unsigned int | |
1579bae1 | 3277 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
3278 | { |
3279 | unsigned char b[2]; | |
775cabad | 3280 | |
db09f25b AM |
3281 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
3282 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 3283 | return b[0] + (b[1] << 8); |
252b5132 RH |
3284 | } |
3285 | ||
3286 | static unsigned int | |
1579bae1 | 3287 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
3288 | { |
3289 | unsigned char b[4]; | |
775cabad | 3290 | |
db09f25b AM |
3291 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
3292 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
599956cf | 3293 | return b[0] + (b[1] << 8) + (b[2] << 16) + ((unsigned) b[3] << 24); |
252b5132 RH |
3294 | } |
3295 | ||
252b5132 | 3296 | static unsigned int |
1579bae1 | 3297 | pe_as32 (void *ptr) |
252b5132 RH |
3298 | { |
3299 | unsigned char *b = ptr; | |
775cabad | 3300 | |
599956cf | 3301 | return b[0] + (b[1] << 8) + (b[2] << 16) + ((unsigned) b[3] << 24); |
252b5132 RH |
3302 | } |
3303 | ||
b34976b6 | 3304 | bfd_boolean |
1579bae1 | 3305 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
3306 | { |
3307 | bfd *dll; | |
6ca0987a KT |
3308 | bfd_vma pe_header_offset, opthdr_ofs, num_entries, i; |
3309 | bfd_vma export_rva, export_size, nsections, secptr, expptr; | |
3310 | bfd_vma exp_funcbase; | |
47639182 AM |
3311 | unsigned char *expdata; |
3312 | char *erva; | |
c7e2358a | 3313 | bfd_vma name_rvas, nexp; |
91d6fa6a | 3314 | const char *dllname; |
939ba9d0 NC |
3315 | /* Initialization with start > end guarantees that is_data |
3316 | will not be set by mistake, and avoids compiler warning. */ | |
6ca0987a KT |
3317 | bfd_vma data_start = 1; |
3318 | bfd_vma data_end = 0; | |
3319 | bfd_vma rdata_start = 1; | |
3320 | bfd_vma rdata_end = 0; | |
3321 | bfd_vma bss_start = 1; | |
3322 | bfd_vma bss_end = 0; | |
9d8e8f44 | 3323 | int from; |
252b5132 RH |
3324 | |
3325 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 3326 | the middle of the .rdata section. */ |
c6c37250 | 3327 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
3328 | if (!dll) |
3329 | { | |
df5f2391 | 3330 | einfo (_("%X%P: open %s: %E\n"), filename); |
b34976b6 | 3331 | return FALSE; |
252b5132 | 3332 | } |
775cabad | 3333 | |
86b1cc60 | 3334 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
3335 | if (!bfd_check_format (dll, bfd_object)) |
3336 | { | |
df5f2391 | 3337 | einfo (_("%X%P: %s: this doesn't appear to be a DLL\n"), filename); |
b34976b6 | 3338 | return FALSE; |
252b5132 RH |
3339 | } |
3340 | ||
d0069cab | 3341 | /* Get pe_header, optional header and numbers of directory entries. */ |
252b5132 RH |
3342 | pe_header_offset = pe_get32 (dll, 0x3c); |
3343 | opthdr_ofs = pe_header_offset + 4 + 20; | |
99ad8390 NC |
3344 | #ifdef pe_use_x86_64 |
3345 | num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */ | |
3346 | #else | |
252b5132 | 3347 | num_entries = pe_get32 (dll, opthdr_ofs + 92); |
99ad8390 | 3348 | #endif |
775cabad | 3349 | |
d0069cab TG |
3350 | /* No import or export directory entry. */ |
3351 | if (num_entries < 1) | |
b34976b6 | 3352 | return FALSE; |
775cabad | 3353 | |
99ad8390 NC |
3354 | #ifdef pe_use_x86_64 |
3355 | export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4); | |
3356 | export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4); | |
3357 | #else | |
252b5132 RH |
3358 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
3359 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
99ad8390 | 3360 | #endif |
9382254d | 3361 | |
d0069cab TG |
3362 | /* No export table - nothing to export. */ |
3363 | if (export_size == 0) | |
3364 | return FALSE; | |
3365 | ||
252b5132 RH |
3366 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); |
3367 | secptr = (pe_header_offset + 4 + 20 + | |
3368 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
3369 | expptr = 0; | |
775cabad | 3370 | |
1579bae1 | 3371 | /* Get the rva and size of the export section. */ |
d643799d | 3372 | for (i = 0; i < nsections; i++) |
252b5132 RH |
3373 | { |
3374 | char sname[8]; | |
6ca0987a KT |
3375 | bfd_vma secptr1 = secptr + 40 * i; |
3376 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3377 | bfd_vma vsize = pe_get32 (dll, secptr1 + 16); | |
3378 | bfd_vma fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 3379 | |
db09f25b AM |
3380 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
3381 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 3382 | |
d643799d | 3383 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
3384 | { |
3385 | expptr = fptr + (export_rva - vaddr); | |
3386 | if (export_rva + export_size > vaddr + vsize) | |
3387 | export_size = vsize - (export_rva - vaddr); | |
3388 | break; | |
3389 | } | |
3390 | } | |
3391 | ||
939ba9d0 | 3392 | /* Scan sections and store the base and size of the |
1579bae1 | 3393 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
3394 | for (i = 0; i < nsections; i++) |
3395 | { | |
6ca0987a KT |
3396 | bfd_vma secptr1 = secptr + 40 * i; |
3397 | bfd_vma vsize = pe_get32 (dll, secptr1 + 8); | |
3398 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3399 | bfd_vma flags = pe_get32 (dll, secptr1 + 36); | |
939ba9d0 NC |
3400 | char sec_name[9]; |
3401 | ||
3402 | sec_name[8] = '\0'; | |
3403 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
3404 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
3405 | ||
3406 | if (strcmp(sec_name,".data") == 0) | |
3407 | { | |
3408 | data_start = vaddr; | |
3409 | data_end = vaddr + vsize; | |
3410 | ||
661a32f7 DS |
3411 | if (pe_dll_extra_pe_debug) |
3412 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3413 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3414 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
661a32f7 DS |
3415 | } |
3416 | else if (strcmp(sec_name,".rdata") == 0) | |
3417 | { | |
3418 | rdata_start = vaddr; | |
3419 | rdata_end = vaddr + vsize; | |
3420 | ||
939ba9d0 NC |
3421 | if (pe_dll_extra_pe_debug) |
3422 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3423 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3424 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
1579bae1 | 3425 | } |
939ba9d0 NC |
3426 | else if (strcmp (sec_name,".bss") == 0) |
3427 | { | |
3428 | bss_start = vaddr; | |
3429 | bss_end = vaddr + vsize; | |
3430 | ||
3431 | if (pe_dll_extra_pe_debug) | |
3432 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3433 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3434 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
939ba9d0 NC |
3435 | } |
3436 | } | |
3437 | ||
1579bae1 | 3438 | expdata = xmalloc (export_size); |
db09f25b AM |
3439 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
3440 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 3441 | erva = (char *) expdata - export_rva; |
252b5132 RH |
3442 | |
3443 | if (pe_def_file == 0) | |
d643799d | 3444 | pe_def_file = def_file_empty (); |
252b5132 | 3445 | |
d643799d KH |
3446 | nexp = pe_as32 (expdata + 24); |
3447 | name_rvas = pe_as32 (expdata + 32); | |
939ba9d0 | 3448 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 3449 | |
939ba9d0 NC |
3450 | /* Use internal dll name instead of filename |
3451 | to enable symbolic dll linking. */ | |
91d6fa6a | 3452 | dllname = erva + pe_as32 (expdata + 12); |
939ba9d0 | 3453 | |
a35bc64f NC |
3454 | /* Check to see if the dll has already been added to |
3455 | the definition list and if so return without error. | |
3456 | This avoids multiple symbol definitions. */ | |
91d6fa6a | 3457 | if (def_get_module (pe_def_file, dllname)) |
a35bc64f NC |
3458 | { |
3459 | if (pe_dll_extra_pe_debug) | |
91d6fa6a | 3460 | printf ("%s is already loaded\n", dllname); |
a35bc64f NC |
3461 | return TRUE; |
3462 | } | |
3463 | ||
9d8e8f44 EB |
3464 | /* This is an optimized version of the insertion loop, which avoids lots of |
3465 | calls to realloc and memmove from def_file_add_import. */ | |
3466 | if ((from = def_file_add_import_from (pe_def_file, nexp, | |
3467 | erva + pe_as32 (erva + name_rvas), | |
3468 | dllname, 0, NULL, NULL)) >= 0) | |
3469 | { | |
3470 | for (i = 0; i < nexp; i++) | |
3471 | { | |
3472 | /* Pointer to the names vector. */ | |
3473 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); | |
3474 | def_file_import *imp; | |
3475 | /* Pointer to the function address vector. */ | |
3476 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); | |
3477 | /* is_data is true if the address is in the data, rdata or bss | |
3478 | segment. */ | |
3479 | const int is_data = | |
3480 | (func_rva >= data_start && func_rva < data_end) | |
3481 | || (func_rva >= rdata_start && func_rva < rdata_end) | |
3482 | || (func_rva >= bss_start && func_rva < bss_end); | |
3483 | ||
3484 | imp = def_file_add_import_at (pe_def_file, from + i, erva + name_rva, | |
3485 | dllname, i, NULL, NULL); | |
3486 | /* Mark symbol type. */ | |
3487 | imp->data = is_data; | |
3488 | ||
3489 | if (pe_dll_extra_pe_debug) | |
3490 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
3491 | __FUNCTION__, dllname, erva + name_rva, | |
3492 | (unsigned long) func_rva, is_data ? "(data)" : ""); | |
3493 | } | |
3494 | ||
3495 | return TRUE; | |
3496 | } | |
3497 | ||
939ba9d0 | 3498 | /* Iterate through the list of symbols. */ |
d643799d | 3499 | for (i = 0; i < nexp; i++) |
252b5132 | 3500 | { |
939ba9d0 | 3501 | /* Pointer to the names vector. */ |
6ca0987a | 3502 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 3503 | def_file_import *imp; |
1579bae1 | 3504 | /* Pointer to the function address vector. */ |
6ca0987a | 3505 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
939ba9d0 NC |
3506 | int is_data = 0; |
3507 | ||
3508 | /* Skip unwanted symbols, which are | |
3509 | exported in buggy auto-import releases. */ | |
17f73277 | 3510 | if (! CONST_STRNEQ (erva + name_rva, "__nm_")) |
6c19b93b | 3511 | { |
db17156e | 3512 | int is_dup = 0; |
6c19b93b | 3513 | /* is_data is true if the address is in the data, rdata or bss |
661a32f7 | 3514 | segment. */ |
6c19b93b | 3515 | is_data = |
939ba9d0 | 3516 | (func_rva >= data_start && func_rva < data_end) |
661a32f7 | 3517 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
3518 | || (func_rva >= bss_start && func_rva < bss_end); |
3519 | ||
3520 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
6e230cc2 | 3521 | dllname, i, NULL, NULL, &is_dup); |
6c19b93b AM |
3522 | /* Mark symbol type. */ |
3523 | if (!is_dup) | |
3524 | imp->data = is_data; | |
1579bae1 | 3525 | |
6c19b93b | 3526 | if (pe_dll_extra_pe_debug) |
939ba9d0 | 3527 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", |
91d6fa6a | 3528 | __FUNCTION__, dllname, erva + name_rva, |
6ca0987a | 3529 | (unsigned long) func_rva, is_data ? "(data)" : ""); |
6c19b93b | 3530 | } |
252b5132 RH |
3531 | } |
3532 | ||
b34976b6 | 3533 | return TRUE; |
252b5132 RH |
3534 | } |
3535 | ||
88183869 DK |
3536 | void |
3537 | pe_output_file_set_long_section_names (bfd *abfd) | |
3538 | { | |
3539 | if (pe_use_coff_long_section_names < 0) | |
3540 | return; | |
3541 | if (!bfd_coff_set_long_section_names (abfd, pe_use_coff_long_section_names)) | |
df5f2391 | 3542 | einfo (_("%X%P: error: can't use long section names on this arch\n")); |
88183869 DK |
3543 | } |
3544 | ||
775cabad NC |
3545 | /* These are the main functions, called from the emulation. The first |
3546 | is called after the bfds are read, so we can guess at how much space | |
3547 | we need. The second is called after everything is placed, so we | |
3548 | can put the right values in place. */ | |
252b5132 RH |
3549 | |
3550 | void | |
1579bae1 | 3551 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3552 | { |
c6c37250 | 3553 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3554 | pe_output_file_set_long_section_names (abfd); |
c1711530 | 3555 | process_def_file_and_drectve (abfd, info); |
252b5132 | 3556 | |
0e1862bb | 3557 | if (pe_def_file->num_exports == 0 && !bfd_link_pic (info)) |
dc9bd8c9 HD |
3558 | { |
3559 | if (pe_dll_enable_reloc_section) | |
3560 | { | |
3561 | build_filler_bfd (0); | |
3562 | pe_output_file_set_long_section_names (filler_bfd); | |
3563 | } | |
3564 | return; | |
3565 | } | |
2b817be1 | 3566 | |
252b5132 | 3567 | generate_edata (abfd, info); |
c6c37250 | 3568 | build_filler_bfd (1); |
88183869 | 3569 | pe_output_file_set_long_section_names (filler_bfd); |
c6c37250 DD |
3570 | } |
3571 | ||
3572 | void | |
1579bae1 | 3573 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
3574 | { |
3575 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3576 | pe_output_file_set_long_section_names (abfd); |
c6c37250 | 3577 | build_filler_bfd (0); |
88183869 | 3578 | pe_output_file_set_long_section_names (filler_bfd); |
252b5132 RH |
3579 | } |
3580 | ||
3581 | void | |
1579bae1 | 3582 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3583 | { |
dc9bd8c9 | 3584 | pe_exe_fill_sections (abfd, info); |
252b5132 | 3585 | |
dc9bd8c9 | 3586 | if (edata_s) |
252b5132 | 3587 | { |
dc9bd8c9 HD |
3588 | fill_edata (abfd, info); |
3589 | edata_s->contents = edata_d; | |
252b5132 RH |
3590 | } |
3591 | ||
0e1862bb | 3592 | if (bfd_link_dll (info)) |
2b817be1 | 3593 | pe_data (abfd)->dll = 1; |
252b5132 | 3594 | } |
c6c37250 DD |
3595 | |
3596 | void | |
1579bae1 | 3597 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
3598 | { |
3599 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3600 | pe_output_file_set_long_section_names (abfd); |
c6c37250 DD |
3601 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3602 | ||
3603 | generate_reloc (abfd, info); | |
3604 | if (reloc_sz > 0) | |
3605 | { | |
fd361982 | 3606 | bfd_set_section_size (reloc_s, reloc_sz); |
c6c37250 DD |
3607 | |
3608 | /* Resize the sections. */ | |
38975f9e | 3609 | lang_reset_memory_regions (); |
e9ee469a | 3610 | lang_size_sections (NULL, TRUE); |
c6c37250 DD |
3611 | |
3612 | /* Redo special stuff. */ | |
3613 | ldemul_after_allocation (); | |
3614 | ||
3615 | /* Do the assignments again. */ | |
2f65ac72 | 3616 | lang_do_assignments (lang_final_phase_enum); |
c6c37250 DD |
3617 | } |
3618 | reloc_s->contents = reloc_d; | |
3619 | } | |
ff2bdb9c CF |
3620 | |
3621 | bfd_boolean | |
3622 | pe_bfd_is_dll (bfd *abfd) | |
3623 | { | |
3624 | return (bfd_get_format (abfd) == bfd_object | |
6c19b93b AM |
3625 | && obj_pe (abfd) |
3626 | && pe_data (abfd)->dll); | |
ff2bdb9c | 3627 | } |