Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
250d07de | 2 | Copyright (C) 1998-2021 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; |
514b4e19 | 163 | int pe_dll_enable_reloc_section = 1; |
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; |
f38a2680 | 173 | static bool 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; | |
f38a2680 | 189 | bool 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 | 266 | #ifdef pe_use_x86_64 |
f38a2680 | 267 | false, |
d74720d2 | 268 | #else |
f38a2680 | 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, | |
f38a2680 | 280 | false, |
a6da4630 A |
281 | autofilter_symbollist_i386 |
282 | }, | |
251dae91 TC |
283 | #else |
284 | { | |
285 | "pei-i386", | |
286 | "pe-bigobj-i386", | |
287 | 7 /* R_IMAGEBASE */, | |
288 | PE_ARCH_i386, | |
289 | bfd_arch_i386, | |
f38a2680 | 290 | true, |
251dae91 TC |
291 | autofilter_symbollist_i386 |
292 | }, | |
a6da4630 | 293 | #endif |
344a211f NC |
294 | { |
295 | "pei-shl", | |
296 | "pe-shl", | |
297 | 16 /* R_SH_IMAGEBASE */, | |
298 | PE_ARCH_sh, | |
299 | bfd_arch_sh, | |
f38a2680 | 300 | true, |
5b8273bf | 301 | autofilter_symbollist_generic |
344a211f NC |
302 | }, |
303 | { | |
304 | "pei-mips", | |
305 | "pe-mips", | |
306 | 34 /* MIPS_R_RVA */, | |
307 | PE_ARCH_mips, | |
308 | bfd_arch_mips, | |
f38a2680 | 309 | false, |
5b8273bf | 310 | autofilter_symbollist_generic |
344a211f NC |
311 | }, |
312 | { | |
313 | "pei-arm-little", | |
314 | "pe-arm-little", | |
315 | 11 /* ARM_RVA32 */, | |
316 | PE_ARCH_arm, | |
317 | bfd_arch_arm, | |
f38a2680 | 318 | true, |
5b8273bf | 319 | autofilter_symbollist_generic |
344a211f | 320 | }, |
7148cc28 NC |
321 | { |
322 | "pei-arm-wince-little", | |
323 | "pe-arm-wince-little", | |
324 | 2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */ | |
325 | PE_ARCH_arm_wince, | |
326 | bfd_arch_arm, | |
f38a2680 | 327 | false, |
7148cc28 NC |
328 | autofilter_symbollist_generic |
329 | }, | |
f38a2680 | 330 | { NULL, NULL, 0, 0, 0, false, NULL } |
c6c37250 DD |
331 | }; |
332 | ||
e916811a | 333 | static const pe_details_type *pe_details; |
c6c37250 | 334 | |
775cabad | 335 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
e916811a | 336 | static const autofilter_entry_type autofilter_liblist[] = |
775cabad | 337 | { |
0112cd26 NC |
338 | { STRING_COMMA_LEN ("libcegcc") }, |
339 | { STRING_COMMA_LEN ("libcygwin") }, | |
340 | { STRING_COMMA_LEN ("libgcc") }, | |
81b07b16 | 341 | { STRING_COMMA_LEN ("libgcc_s") }, |
0112cd26 NC |
342 | { STRING_COMMA_LEN ("libstdc++") }, |
343 | { STRING_COMMA_LEN ("libmingw32") }, | |
344 | { STRING_COMMA_LEN ("libmingwex") }, | |
345 | { STRING_COMMA_LEN ("libg2c") }, | |
346 | { STRING_COMMA_LEN ("libsupc++") }, | |
347 | { STRING_COMMA_LEN ("libobjc") }, | |
348 | { STRING_COMMA_LEN ("libgcj") }, | |
9d9c67b0 MS |
349 | { STRING_COMMA_LEN ("libmsvcrt") }, |
350 | { STRING_COMMA_LEN ("libmsvcrt-os") }, | |
351 | { STRING_COMMA_LEN ("libucrtbase") }, | |
db86b2dc | 352 | { NULL, 0 } |
b044cda1 | 353 | }; |
775cabad | 354 | |
81b07b16 DK |
355 | /* Regardless of the suffix issue mentioned above, we must ensure that |
356 | we do not falsely match on a leading substring, such as when libtool | |
357 | builds libstdc++ as a DLL using libsupc++convenience.a as an intermediate. | |
358 | This routine ensures that the leading part of the name matches and that | |
359 | it is followed by only an optional version suffix and a file extension, | |
360 | returning zero if so or -1 if not. */ | |
361 | static int libnamencmp (const char *libname, const autofilter_entry_type *afptr) | |
362 | { | |
42627821 | 363 | if (filename_ncmp (libname, afptr->name, afptr->len)) |
81b07b16 DK |
364 | return -1; |
365 | ||
366 | libname += afptr->len; | |
367 | ||
368 | /* Be liberal in interpreting what counts as a version suffix; we | |
369 | accept anything that has a dash to separate it from the name and | |
370 | begins with a digit. */ | |
371 | if (libname[0] == '-') | |
372 | { | |
373 | if (!ISDIGIT (*++libname)) | |
374 | return -1; | |
375 | /* Ensure the filename has an extension. */ | |
376 | while (*++libname != '.') | |
377 | if (!*libname) | |
378 | return -1; | |
379 | } | |
380 | else if (libname[0] != '.') | |
381 | return -1; | |
382 | ||
383 | return 0; | |
384 | } | |
385 | ||
e916811a | 386 | static const autofilter_entry_type autofilter_objlist[] = |
775cabad | 387 | { |
0112cd26 NC |
388 | { STRING_COMMA_LEN ("crt0.o") }, |
389 | { STRING_COMMA_LEN ("crt1.o") }, | |
390 | { STRING_COMMA_LEN ("crt2.o") }, | |
391 | { STRING_COMMA_LEN ("dllcrt1.o") }, | |
392 | { STRING_COMMA_LEN ("dllcrt2.o") }, | |
393 | { STRING_COMMA_LEN ("gcrt0.o") }, | |
394 | { STRING_COMMA_LEN ("gcrt1.o") }, | |
395 | { STRING_COMMA_LEN ("gcrt2.o") }, | |
396 | { STRING_COMMA_LEN ("crtbegin.o") }, | |
397 | { STRING_COMMA_LEN ("crtend.o") }, | |
db86b2dc | 398 | { NULL, 0 } |
b044cda1 | 399 | }; |
775cabad | 400 | |
e916811a | 401 | static const autofilter_entry_type autofilter_symbolprefixlist[] = |
775cabad | 402 | { |
00479ba8 NC |
403 | /* _imp_ is treated specially, as it is always underscored. */ |
404 | /* { STRING_COMMA_LEN ("_imp_") }, */ | |
405 | /* Don't export some c++ symbols. */ | |
0112cd26 | 406 | { STRING_COMMA_LEN ("__rtti_") }, |
00479ba8 | 407 | { STRING_COMMA_LEN ("__builtin_") }, |
39cebe23 | 408 | /* Don't re-export auto-imported symbols. */ |
17f73277 | 409 | { STRING_COMMA_LEN ("__nm_") }, |
775cabad | 410 | /* Don't export symbols specifying internal DLL layout. */ |
0112cd26 | 411 | { STRING_COMMA_LEN ("_head_") }, |
b92216aa DS |
412 | { STRING_COMMA_LEN ("_IMPORT_DESCRIPTOR_") }, |
413 | /* Don't export section labels or artificial symbols | |
414 | (eg ".weak.foo". */ | |
415 | { STRING_COMMA_LEN (".") }, | |
db86b2dc | 416 | { NULL, 0 } |
b044cda1 | 417 | }; |
775cabad | 418 | |
e916811a | 419 | static const autofilter_entry_type autofilter_symbolsuffixlist[] = |
775cabad | 420 | { |
0112cd26 | 421 | { STRING_COMMA_LEN ("_iname") }, |
b92216aa | 422 | { STRING_COMMA_LEN ("_NULL_THUNK_DATA") }, |
db86b2dc | 423 | { NULL, 0 } |
b044cda1 CW |
424 | }; |
425 | ||
c6c37250 DD |
426 | #define U(str) (pe_details->underscored ? "_" str : str) |
427 | ||
428 | void | |
1579bae1 | 429 | pe_dll_id_target (const char *target) |
c6c37250 DD |
430 | { |
431 | int i; | |
775cabad | 432 | |
d643799d | 433 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
434 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
435 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 436 | { |
522f09cd KT |
437 | int u = pe_leading_underscore; /* Underscoring mode. -1 for use default. */ |
438 | if (u == -1) | |
439 | bfd_get_target_info (target, NULL, NULL, &u, NULL); | |
d74720d2 KT |
440 | if (u == -1) |
441 | abort (); | |
63b4cc53 | 442 | pe_detail_list[i].underscored = u != 0; |
d643799d | 443 | pe_details = pe_detail_list + i; |
d74720d2 | 444 | pe_leading_underscore = (u != 0 ? 1 : 0); |
c6c37250 DD |
445 | return; |
446 | } | |
df5f2391 | 447 | einfo (_("%X%P: unsupported PEI architecture: %s\n"), target); |
c6c37250 DD |
448 | exit (1); |
449 | } | |
450 | ||
b7a26f91 | 451 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 452 | them out by pages. */ |
252b5132 | 453 | |
775cabad NC |
454 | typedef struct |
455 | { | |
456 | bfd_vma vma; | |
457 | char type; | |
458 | short extra; | |
08dec09d | 459 | int idx; |
775cabad NC |
460 | } |
461 | reloc_data_type; | |
c6c37250 | 462 | |
252b5132 | 463 | static int |
1579bae1 | 464 | reloc_sort (const void *va, const void *vb) |
252b5132 | 465 | { |
08dec09d AM |
466 | const reloc_data_type *a = (const reloc_data_type *) va; |
467 | const reloc_data_type *b = (const reloc_data_type *) vb; | |
775cabad | 468 | |
08dec09d AM |
469 | if (a->vma > b->vma) |
470 | return 1; | |
471 | if (a->vma < b->vma) | |
472 | return -1; | |
473 | if (a->idx > b->idx) | |
474 | return 1; | |
475 | if (a->idx < b->idx) | |
476 | return -1; | |
477 | return 0; | |
252b5132 RH |
478 | } |
479 | ||
480 | static int | |
1579bae1 | 481 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 482 | { |
1579bae1 AM |
483 | const def_file_export *a = va; |
484 | const def_file_export *b = vb; | |
7fcab871 KT |
485 | char *an = a->name; |
486 | char *bn = b->name; | |
487 | if (a->its_name) | |
488 | an = a->its_name; | |
489 | if (b->its_name) | |
490 | bn = b->its_name; | |
491 | ||
492 | return strcmp (an, bn); | |
252b5132 RH |
493 | } |
494 | ||
775cabad | 495 | /* Read and process the .DEF file. */ |
252b5132 RH |
496 | |
497 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
498 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 499 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
500 | |
501 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 502 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
503 | static int export_table_size; |
504 | static int count_exported; | |
505 | static int count_exported_byname; | |
506 | static int count_with_ordinals; | |
507 | static const char *dll_name; | |
508 | static int min_ordinal, max_ordinal; | |
509 | static int *exported_symbols; | |
510 | ||
775cabad NC |
511 | typedef struct exclude_list_struct |
512 | { | |
513 | char *string; | |
514 | struct exclude_list_struct *next; | |
e1c37eb5 | 515 | exclude_type type; |
775cabad NC |
516 | } |
517 | exclude_list_struct; | |
86b1cc60 | 518 | |
252b5132 RH |
519 | static struct exclude_list_struct *excludes = 0; |
520 | ||
521 | void | |
e1c37eb5 | 522 | pe_dll_add_excludes (const char *new_excludes, const exclude_type type) |
252b5132 RH |
523 | { |
524 | char *local_copy; | |
525 | char *exclude_string; | |
526 | ||
527 | local_copy = xstrdup (new_excludes); | |
528 | ||
529 | exclude_string = strtok (local_copy, ",:"); | |
530 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
531 | { | |
532 | struct exclude_list_struct *new_exclude; | |
533 | ||
1579bae1 AM |
534 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
535 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 536 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 537 | new_exclude->type = type; |
252b5132 RH |
538 | new_exclude->next = excludes; |
539 | excludes = new_exclude; | |
540 | } | |
541 | ||
542 | free (local_copy); | |
543 | } | |
544 | ||
f38a2680 | 545 | static bool |
00479ba8 NC |
546 | is_import (const char* n) |
547 | { | |
08dedd66 | 548 | return (startswith (n, "__imp_")); |
00479ba8 | 549 | } |
70b0be79 | 550 | |
775cabad NC |
551 | /* abfd is a bfd containing n (or NULL) |
552 | It can be used for contextual checks. */ | |
553 | ||
252b5132 | 554 | static int |
1579bae1 | 555 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 | 556 | { |
98872a7c | 557 | def_file_export key; |
252b5132 | 558 | struct exclude_list_struct *ex; |
e916811a | 559 | const autofilter_entry_type *afptr; |
98872a7c NC |
560 | const char * libname = NULL; |
561 | ||
70b0be79 | 562 | if (abfd && abfd->my_archive) |
607b4833 | 563 | libname = lbasename (bfd_get_filename (abfd->my_archive)); |
b044cda1 | 564 | |
98872a7c NC |
565 | key.name = key.its_name = (char *) n; |
566 | ||
567 | /* Return false if n is in the d->exports table. */ | |
aaf9875e AM |
568 | if (d->num_exports != 0 |
569 | && bsearch (&key, d->exports, d->num_exports, | |
570 | sizeof (pe_def_file->exports[0]), pe_export_sort)) | |
98872a7c | 571 | return 0; |
775cabad | 572 | |
252b5132 RH |
573 | if (pe_dll_do_default_excludes) |
574 | { | |
663dd378 | 575 | const char * p; |
775cabad NC |
576 | int len; |
577 | ||
b044cda1 | 578 | if (pe_dll_extra_pe_debug) |
775cabad NC |
579 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
580 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
581 | |
582 | /* First of all, make context checks: | |
1579bae1 | 583 | Don't export anything from standard libs. */ |
658957db | 584 | if (libname) |
b044cda1 CW |
585 | { |
586 | afptr = autofilter_liblist; | |
775cabad | 587 | |
b044cda1 CW |
588 | while (afptr->name) |
589 | { | |
81b07b16 | 590 | if (libnamencmp (libname, afptr) == 0 ) |
b044cda1 CW |
591 | return 0; |
592 | afptr++; | |
593 | } | |
594 | } | |
595 | ||
775cabad | 596 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 597 | |
607b4833 | 598 | if (abfd && (p = lbasename (bfd_get_filename (abfd)))) |
663dd378 | 599 | { |
b7a26f91 KH |
600 | afptr = autofilter_objlist; |
601 | while (afptr->name) | |
59d28a94 | 602 | { |
b7a26f91 KH |
603 | if (strcmp (p, afptr->name) == 0) |
604 | return 0; | |
59d28a94 | 605 | afptr++; |
663dd378 | 606 | } |
775cabad | 607 | } |
b044cda1 CW |
608 | |
609 | /* Don't try to blindly exclude all symbols | |
610 | that begin with '__'; this was tried and | |
5b8273bf NC |
611 | it is too restrictive. Instead we have |
612 | a target specific list to use: */ | |
1b610c93 | 613 | afptr = pe_details->autofilter_symbollist; |
99ad8390 | 614 | |
b044cda1 CW |
615 | while (afptr->name) |
616 | { | |
617 | if (strcmp (n, afptr->name) == 0) | |
618 | return 0; | |
775cabad | 619 | |
b7a26f91 | 620 | afptr++; |
b044cda1 CW |
621 | } |
622 | ||
775cabad | 623 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
624 | afptr = autofilter_symbolprefixlist; |
625 | while (afptr->name) | |
626 | { | |
627 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
628 | return 0; | |
775cabad | 629 | |
b7a26f91 | 630 | afptr++; |
b044cda1 CW |
631 | } |
632 | ||
775cabad NC |
633 | /* Finally, exclude symbols ending with ... */ |
634 | len = strlen (n); | |
635 | afptr = autofilter_symbolsuffixlist; | |
636 | while (afptr->name) | |
637 | { | |
b7a26f91 | 638 | if ((len >= afptr->len) |
775cabad | 639 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
640 | && strncmp (n + len - afptr->len, afptr->name, |
641 | afptr->len + 1) == 0) | |
775cabad NC |
642 | return 0; |
643 | ||
b7a26f91 | 644 | afptr++; |
775cabad | 645 | } |
252b5132 | 646 | } |
775cabad | 647 | |
252b5132 | 648 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 | 649 | { |
e1c37eb5 | 650 | if (ex->type == EXCLUDELIBS) |
70b0be79 CF |
651 | { |
652 | if (libname | |
42627821 | 653 | && ((filename_cmp (libname, ex->string) == 0) |
70b0be79 CF |
654 | || (strcasecmp ("ALL", ex->string) == 0))) |
655 | return 0; | |
656 | } | |
e1c37eb5 DK |
657 | else if (ex->type == EXCLUDEFORIMPLIB) |
658 | { | |
607b4833 | 659 | if (filename_cmp (bfd_get_filename (abfd), ex->string) == 0) |
e1c37eb5 DK |
660 | return 0; |
661 | } | |
70b0be79 | 662 | else if (strcmp (n, ex->string) == 0) |
658957db | 663 | return 0; |
70b0be79 | 664 | } |
775cabad | 665 | |
252b5132 RH |
666 | return 1; |
667 | } | |
668 | ||
669 | static void | |
c1711530 | 670 | process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
671 | { |
672 | int i, j; | |
673 | struct bfd_link_hash_entry *blhe; | |
674 | bfd *b; | |
198beae2 | 675 | struct bfd_section *s; |
d643799d | 676 | def_file_export *e = 0; |
f38a2680 | 677 | bool resort_needed; |
252b5132 RH |
678 | |
679 | if (!pe_def_file) | |
680 | pe_def_file = def_file_empty (); | |
681 | ||
682 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 683 | sections, and push those into the def file too. */ |
c72f2fb2 | 684 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
685 | { |
686 | s = bfd_get_section_by_name (b, ".drectve"); | |
687 | if (s) | |
688 | { | |
eea6121a | 689 | long size = s->size; |
252b5132 | 690 | char *buf = xmalloc (size); |
775cabad | 691 | |
252b5132 RH |
692 | bfd_get_section_contents (b, s, buf, 0, size); |
693 | def_file_add_directive (pe_def_file, buf, size); | |
694 | free (buf); | |
695 | } | |
696 | } | |
697 | ||
c1711530 DK |
698 | /* Process aligned common symbol information from the |
699 | .drectve sections now; common symbol allocation is | |
700 | done before final link, so it will be too late to | |
701 | process them in process_embedded_commands() called | |
702 | from _bfd_coff_link_input_bfd(). */ | |
703 | if (pe_def_file->aligncomms) | |
704 | { | |
705 | def_file_aligncomm *ac = pe_def_file->aligncomms; | |
706 | while (ac) | |
707 | { | |
708 | struct coff_link_hash_entry *sym_hash; | |
709 | sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
f38a2680 | 710 | ac->symbol_name, false, false, false); |
c1711530 | 711 | if (sym_hash && sym_hash->root.type == bfd_link_hash_common |
6c19b93b | 712 | && sym_hash->root.u.c.p->alignment_power < (unsigned) ac->alignment) |
c1711530 DK |
713 | { |
714 | sym_hash->root.u.c.p->alignment_power = (unsigned) ac->alignment; | |
715 | } | |
716 | ac = ac->next; | |
717 | } | |
718 | } | |
719 | ||
2927aaca NC |
720 | /* If we are building an executable and there is nothing |
721 | to export, we do not build an export table at all. */ | |
0e1862bb | 722 | if (bfd_link_executable (info) && pe_def_file->num_exports == 0 |
2927aaca | 723 | && (!pe_dll_export_everything || pe_dll_exclude_all_symbols)) |
2b817be1 NC |
724 | return; |
725 | ||
86b1cc60 | 726 | /* Now, maybe export everything else the default way. */ |
2927aaca NC |
727 | if ((pe_dll_export_everything || pe_def_file->num_exports == 0) |
728 | && !pe_dll_exclude_all_symbols) | |
252b5132 | 729 | { |
c72f2fb2 | 730 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
731 | { |
732 | asymbol **symbols; | |
5c1d2f5f | 733 | int nsyms; |
252b5132 | 734 | |
5c1d2f5f AM |
735 | if (!bfd_generic_link_read_symbols (b)) |
736 | { | |
df5f2391 | 737 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); |
5c1d2f5f AM |
738 | return; |
739 | } | |
740 | ||
741 | symbols = bfd_get_outsymbols (b); | |
742 | nsyms = bfd_get_symcount (b); | |
252b5132 RH |
743 | |
744 | for (j = 0; j < nsyms; j++) | |
745 | { | |
d643799d | 746 | /* We should export symbols which are either global or not |
1579bae1 AM |
747 | anything at all. (.bss data is the latter) |
748 | We should not export undefined symbols. */ | |
f38a2680 | 749 | bool would_export |
45dfa85a AM |
750 | = (symbols[j]->section != bfd_und_section_ptr |
751 | && ((symbols[j]->flags & BSF_GLOBAL) | |
752 | || (symbols[j]->flags == 0))); | |
fd91d419 | 753 | if (link_info.version_info && would_export) |
6c19b93b AM |
754 | would_export |
755 | = !bfd_hide_sym_by_version (link_info.version_info, | |
756 | symbols[j]->name); | |
09e2aba4 | 757 | if (would_export) |
252b5132 RH |
758 | { |
759 | const char *sn = symbols[j]->name; | |
b044cda1 | 760 | |
775cabad | 761 | /* We should not re-export imported stuff. */ |
b044cda1 | 762 | { |
e916811a | 763 | char *name; |
00479ba8 | 764 | if (is_import (sn)) |
6c19b93b | 765 | continue; |
00479ba8 | 766 | |
e916811a | 767 | name = xmalloc (strlen ("__imp_") + strlen (sn) + 1); |
00479ba8 | 768 | sprintf (name, "%s%s", "__imp_", sn); |
775cabad | 769 | |
b044cda1 | 770 | blhe = bfd_link_hash_lookup (info->hash, name, |
f38a2680 | 771 | false, false, false); |
b044cda1 CW |
772 | free (name); |
773 | ||
b7a26f91 | 774 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
775 | continue; |
776 | } | |
777 | ||
00479ba8 | 778 | if (pe_details->underscored && *sn == '_') |
252b5132 | 779 | sn++; |
775cabad | 780 | |
b044cda1 CW |
781 | if (auto_export (b, pe_def_file, sn)) |
782 | { | |
db17156e | 783 | int is_dup = 0; |
b044cda1 | 784 | def_file_export *p; |
98872a7c | 785 | |
db17156e KT |
786 | p = def_file_add_export (pe_def_file, sn, 0, -1, |
787 | NULL, &is_dup); | |
775cabad | 788 | /* Fill data flag properly, from dlltool.c. */ |
db17156e | 789 | if (!is_dup) |
6c19b93b | 790 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
b044cda1 | 791 | } |
252b5132 RH |
792 | } |
793 | } | |
794 | } | |
795 | } | |
796 | ||
797 | #undef NE | |
798 | #define NE pe_def_file->num_exports | |
799 | ||
177b81d6 DK |
800 | /* Don't create an empty export table. */ |
801 | if (NE == 0) | |
802 | return; | |
803 | ||
f38a2680 | 804 | resort_needed = false; |
98872a7c | 805 | |
86b1cc60 | 806 | /* Canonicalize the export list. */ |
252b5132 RH |
807 | if (pe_dll_kill_ats) |
808 | { | |
809 | for (i = 0; i < NE; i++) | |
810 | { | |
31fd86f1 KT |
811 | /* Check for fastcall/stdcall-decoration, but ignore |
812 | C++ mangled names. */ | |
813 | if (pe_def_file->exports[i].name[0] != '?' | |
814 | && strchr (pe_def_file->exports[i].name, '@')) | |
252b5132 | 815 | { |
86b1cc60 | 816 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
817 | pointing to the same memory as name, or might not |
818 | have. */ | |
819 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 820 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
31fd86f1 | 821 | char *tmp_at = strrchr (tmp, '@'); |
775cabad | 822 | |
a8d701fd | 823 | if (tmp_at) |
6c19b93b | 824 | *tmp_at = 0; |
a8d701fd | 825 | else |
df5f2391 | 826 | einfo (_("%X%P: cannot export %s: invalid export name\n"), |
a8d701fd | 827 | pe_def_file->exports[i].name); |
252b5132 | 828 | pe_def_file->exports[i].name = tmp; |
f38a2680 | 829 | resort_needed = true; |
252b5132 RH |
830 | } |
831 | } | |
832 | } | |
833 | ||
98872a7c NC |
834 | /* Re-sort the exports table as we have possibly changed the order |
835 | by removing leading @. */ | |
836 | if (resort_needed) | |
837 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), | |
6c19b93b | 838 | pe_export_sort); |
98872a7c | 839 | |
252b5132 RH |
840 | if (pe_dll_stdcall_aliases) |
841 | { | |
842 | for (i = 0; i < NE; i++) | |
843 | { | |
00479ba8 NC |
844 | if (is_import (pe_def_file->exports[i].name)) |
845 | continue; | |
846 | ||
252b5132 RH |
847 | if (strchr (pe_def_file->exports[i].name, '@')) |
848 | { | |
db17156e | 849 | int is_dup = 1; |
1579bae1 | 850 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 851 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 852 | |
252b5132 | 853 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 854 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 855 | def_file_add_export (pe_def_file, tmp, |
b044cda1 | 856 | pe_def_file->exports[i].internal_name, |
db17156e KT |
857 | -1, NULL, &is_dup); |
858 | if (is_dup) | |
6c19b93b | 859 | free (tmp); |
252b5132 RH |
860 | } |
861 | } | |
862 | } | |
863 | ||
86b1cc60 KH |
864 | /* Convenience, but watch out for it changing. */ |
865 | e = pe_def_file->exports; | |
252b5132 | 866 | |
252b5132 RH |
867 | for (i = 0, j = 0; i < NE; i++) |
868 | { | |
869 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
870 | { | |
870df5dc | 871 | /* This is a duplicate. */ |
252b5132 RH |
872 | if (e[j - 1].ordinal != -1 |
873 | && e[i].ordinal != -1 | |
874 | && e[j - 1].ordinal != e[i].ordinal) | |
875 | { | |
870df5dc NC |
876 | if (pe_dll_warn_dup_exports) |
877 | /* xgettext:c-format */ | |
df5f2391 | 878 | einfo (_("%X%P: error, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 879 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
880 | } |
881 | else | |
882 | { | |
870df5dc NC |
883 | if (pe_dll_warn_dup_exports) |
884 | /* xgettext:c-format */ | |
df5f2391 | 885 | einfo (_("%P: warning, duplicate EXPORT: %s\n"), |
870df5dc | 886 | e[j - 1].name); |
252b5132 | 887 | } |
775cabad | 888 | |
486e80e2 | 889 | if (e[i].ordinal != -1) |
252b5132 RH |
890 | e[j - 1].ordinal = e[i].ordinal; |
891 | e[j - 1].flag_private |= e[i].flag_private; | |
892 | e[j - 1].flag_constant |= e[i].flag_constant; | |
893 | e[j - 1].flag_noname |= e[i].flag_noname; | |
894 | e[j - 1].flag_data |= e[i].flag_data; | |
5e2ab612 AM |
895 | free (e[i].name); |
896 | free (e[i].internal_name); | |
897 | free (e[i].its_name); | |
252b5132 RH |
898 | } |
899 | else | |
900 | { | |
901 | if (i != j) | |
902 | e[j] = e[i]; | |
903 | j++; | |
904 | } | |
905 | } | |
906 | pe_def_file->num_exports = j; /* == NE */ | |
907 | ||
6e230cc2 KT |
908 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
909 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); | |
910 | ||
911 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); | |
912 | max_ordinal = 0; | |
913 | min_ordinal = 65536; | |
914 | count_exported = 0; | |
915 | count_exported_byname = 0; | |
916 | count_with_ordinals = 0; | |
917 | ||
252b5132 RH |
918 | for (i = 0; i < NE; i++) |
919 | { | |
e1fa0163 | 920 | char *int_name = pe_def_file->exports[i].internal_name; |
1579bae1 | 921 | char *name; |
41f46ed9 | 922 | |
4153b6db NC |
923 | /* PR 19803: Make sure that any exported symbol does not get garbage collected. */ |
924 | lang_add_gc_name (int_name); | |
925 | ||
e1fa0163 NC |
926 | name = xmalloc (strlen (int_name) + 2); |
927 | if (pe_details->underscored && int_name[0] != '@') | |
c6c37250 DD |
928 | { |
929 | *name = '_'; | |
e1fa0163 | 930 | strcpy (name + 1, int_name); |
67f101ee NC |
931 | |
932 | /* PR 19803: The alias must be preserved as well. */ | |
933 | lang_add_gc_name (xstrdup (name)); | |
c6c37250 DD |
934 | } |
935 | else | |
e1fa0163 | 936 | strcpy (name, int_name); |
252b5132 RH |
937 | |
938 | blhe = bfd_link_hash_lookup (info->hash, | |
939 | name, | |
f38a2680 | 940 | false, false, true); |
252b5132 | 941 | |
8a5b676c | 942 | if (blhe |
d643799d | 943 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 944 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
945 | { |
946 | count_exported++; | |
947 | if (!pe_def_file->exports[i].flag_noname) | |
948 | count_exported_byname++; | |
8a5b676c DD |
949 | |
950 | /* Only fill in the sections. The actual offsets are computed | |
951 | in fill_exported_offsets() after common symbols are laid | |
952 | out. */ | |
d643799d | 953 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
954 | exported_symbol_sections[i] = blhe->u.def.section; |
955 | else | |
956 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 957 | |
75898d57 DK |
958 | if (pe_def_file->exports[i].ordinal != -1) |
959 | { | |
960 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
961 | max_ordinal = pe_def_file->exports[i].ordinal; | |
962 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
963 | min_ordinal = pe_def_file->exports[i].ordinal; | |
964 | count_with_ordinals++; | |
965 | } | |
966 | } | |
967 | /* Check for forward exports. These are indicated in DEF files by an | |
6c19b93b | 968 | export directive of the form NAME1 = MODULE-NAME.EXTERNAL-NAME |
75898d57 DK |
969 | but we must take care not to be fooled when the user wants to export |
970 | a symbol that actually really has a dot in it, so we only check | |
971 | for them here, after real defined symbols have already been matched. */ | |
e1fa0163 | 972 | else if (strchr (int_name, '.')) |
75898d57 DK |
973 | { |
974 | count_exported++; | |
975 | if (!pe_def_file->exports[i].flag_noname) | |
976 | count_exported_byname++; | |
977 | ||
978 | pe_def_file->exports[i].flag_forward = 1; | |
979 | ||
252b5132 RH |
980 | if (pe_def_file->exports[i].ordinal != -1) |
981 | { | |
982 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
983 | max_ordinal = pe_def_file->exports[i].ordinal; | |
984 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
985 | min_ordinal = pe_def_file->exports[i].ordinal; | |
986 | count_with_ordinals++; | |
987 | } | |
988 | } | |
989 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
990 | { | |
991 | /* xgettext:c-format */ | |
df5f2391 | 992 | einfo (_("%X%P: cannot export %s: symbol not defined\n"), |
e1fa0163 | 993 | int_name); |
252b5132 RH |
994 | } |
995 | else if (blhe) | |
996 | { | |
997 | /* xgettext:c-format */ | |
df5f2391 | 998 | einfo (_("%X%P: cannot export %s: symbol wrong type (%d vs %d)\n"), |
e1fa0163 | 999 | int_name, |
252b5132 RH |
1000 | blhe->type, bfd_link_hash_defined); |
1001 | } | |
1002 | else | |
1003 | { | |
1004 | /* xgettext:c-format */ | |
df5f2391 | 1005 | einfo (_("%X%P: cannot export %s: symbol not found\n"), |
e1fa0163 | 1006 | int_name); |
252b5132 RH |
1007 | } |
1008 | free (name); | |
1009 | } | |
1010 | } | |
1011 | ||
775cabad | 1012 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
1013 | |
1014 | static void | |
1579bae1 | 1015 | build_filler_bfd (int include_edata) |
252b5132 RH |
1016 | { |
1017 | lang_input_statement_type *filler_file; | |
1018 | filler_file = lang_add_input_file ("dll stuff", | |
1019 | lang_input_file_is_fake_enum, | |
1020 | NULL); | |
f13a99db AM |
1021 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", |
1022 | link_info.output_bfd); | |
252b5132 RH |
1023 | if (filler_bfd == NULL |
1024 | || !bfd_set_arch_mach (filler_bfd, | |
f13a99db AM |
1025 | bfd_get_arch (link_info.output_bfd), |
1026 | bfd_get_mach (link_info.output_bfd))) | |
252b5132 | 1027 | { |
df5f2391 | 1028 | einfo (_("%F%P: can not create BFD: %E\n")); |
252b5132 RH |
1029 | return; |
1030 | } | |
1031 | ||
c6c37250 | 1032 | if (include_edata) |
252b5132 | 1033 | { |
c6c37250 DD |
1034 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
1035 | if (edata_s == NULL | |
fd361982 AM |
1036 | || !bfd_set_section_flags (edata_s, (SEC_HAS_CONTENTS |
1037 | | SEC_ALLOC | |
1038 | | SEC_LOAD | |
1039 | | SEC_KEEP | |
1040 | | SEC_IN_MEMORY))) | |
c6c37250 | 1041 | { |
d003af55 | 1042 | einfo (_("%X%P: can not create .edata section: %E\n")); |
c6c37250 DD |
1043 | return; |
1044 | } | |
fd361982 | 1045 | bfd_set_section_size (edata_s, edata_sz); |
252b5132 | 1046 | } |
252b5132 RH |
1047 | |
1048 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
1049 | if (reloc_s == NULL | |
fd361982 AM |
1050 | || !bfd_set_section_flags (reloc_s, (SEC_HAS_CONTENTS |
1051 | | SEC_ALLOC | |
1052 | | SEC_LOAD | |
1053 | | SEC_KEEP | |
1054 | | SEC_IN_MEMORY))) | |
252b5132 | 1055 | { |
d003af55 | 1056 | einfo (_("%X%P: can not create .reloc section: %E\n")); |
252b5132 RH |
1057 | return; |
1058 | } | |
775cabad | 1059 | |
fd361982 | 1060 | bfd_set_section_size (reloc_s, 0); |
252b5132 RH |
1061 | |
1062 | ldlang_add_file (filler_file); | |
1063 | } | |
1064 | ||
775cabad | 1065 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
1066 | |
1067 | static void | |
1579bae1 | 1068 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
1069 | { |
1070 | int i, next_ordinal; | |
1071 | int name_table_size = 0; | |
1072 | const char *dlnp; | |
1073 | ||
1074 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 1075 | and what the range of ordinals is. */ |
252b5132 | 1076 | if (pe_def_file->name) |
775cabad | 1077 | dll_name = pe_def_file->name; |
252b5132 RH |
1078 | else |
1079 | { | |
607b4833 | 1080 | dll_name = bfd_get_filename (abfd); |
775cabad | 1081 | |
252b5132 | 1082 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
1083 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
1084 | dll_name = dlnp + 1; | |
252b5132 RH |
1085 | } |
1086 | ||
1087 | if (count_with_ordinals && max_ordinal > count_exported) | |
1088 | { | |
1089 | if (min_ordinal > max_ordinal - count_exported + 1) | |
1090 | min_ordinal = max_ordinal - count_exported + 1; | |
1091 | } | |
1092 | else | |
1093 | { | |
1094 | min_ordinal = 1; | |
1095 | max_ordinal = count_exported; | |
1096 | } | |
252b5132 | 1097 | |
775cabad | 1098 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 1099 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
1100 | for (i = 0; i < export_table_size; i++) |
1101 | exported_symbols[i] = -1; | |
1102 | ||
86b1cc60 | 1103 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
1104 | for (i = 0; i < NE; i++) |
1105 | { | |
6c19b93b AM |
1106 | if (exported_symbol_sections[i] |
1107 | || pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
1108 | { |
1109 | if (pe_def_file->exports[i].ordinal != -1) | |
1110 | { | |
1111 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
1112 | int pi = exported_symbols[ei]; | |
775cabad | 1113 | |
252b5132 RH |
1114 | if (pi != -1) |
1115 | { | |
1116 | /* xgettext:c-format */ | |
df5f2391 | 1117 | einfo (_("%X%P: error: ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
1118 | pe_def_file->exports[i].ordinal, |
1119 | pe_def_file->exports[i].name, | |
1120 | pe_def_file->exports[pi].name); | |
1121 | } | |
1122 | exported_symbols[ei] = i; | |
1123 | } | |
7fcab871 KT |
1124 | if (pe_def_file->exports[i].its_name) |
1125 | name_table_size += strlen (pe_def_file->exports[i].its_name) + 1; | |
1126 | else | |
1127 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
252b5132 | 1128 | } |
a8d701fd DS |
1129 | |
1130 | /* Reserve space for the forward name. */ | |
1131 | if (pe_def_file->exports[i].flag_forward) | |
1132 | { | |
1133 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
1134 | } | |
252b5132 RH |
1135 | } |
1136 | ||
1137 | next_ordinal = min_ordinal; | |
1138 | for (i = 0; i < NE; i++) | |
6c19b93b AM |
1139 | if ((exported_symbol_sections[i] |
1140 | || pe_def_file->exports[i].flag_forward) | |
1141 | && pe_def_file->exports[i].ordinal == -1) | |
a8d701fd DS |
1142 | { |
1143 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
1144 | next_ordinal++; | |
775cabad | 1145 | |
a8d701fd DS |
1146 | exported_symbols[next_ordinal - min_ordinal] = i; |
1147 | pe_def_file->exports[i].ordinal = next_ordinal; | |
1148 | } | |
252b5132 | 1149 | |
611a3ca9 NC |
1150 | /* PR 12969: Check for more than 1^16 ordinals. */ |
1151 | if (max_ordinal > 65535 || next_ordinal > 65535) | |
1152 | /* xgettext:c-format */ | |
df5f2391 | 1153 | einfo(_("%X%P: error: export ordinal too large: %d\n"), |
611a3ca9 NC |
1154 | max_ordinal > next_ordinal ? max_ordinal : next_ordinal); |
1155 | ||
86b1cc60 | 1156 | /* OK, now we can allocate some memory. */ |
775cabad NC |
1157 | edata_sz = (40 /* directory */ |
1158 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
1159 | + 4 * count_exported_byname /* name ptrs */ |
1160 | + 2 * count_exported_byname /* ordinals */ | |
1161 | + name_table_size + strlen (dll_name) + 1); | |
1162 | } | |
1163 | ||
8a5b676c | 1164 | /* Fill the exported symbol offsets. The preliminary work has already |
c1711530 | 1165 | been done in process_def_file_and_drectve(). */ |
8a5b676c DD |
1166 | |
1167 | static void | |
1579bae1 | 1168 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 1169 | { |
f0c87f88 | 1170 | int i; |
8a5b676c | 1171 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 1172 | |
8a5b676c DD |
1173 | for (i = 0; i < pe_def_file->num_exports; i++) |
1174 | { | |
1579bae1 | 1175 | char *name; |
775cabad | 1176 | |
1579bae1 | 1177 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 1178 | if (pe_details->underscored |
6c19b93b | 1179 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
1180 | { |
1181 | *name = '_'; | |
1182 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
1183 | } | |
1184 | else | |
1185 | strcpy (name, pe_def_file->exports[i].internal_name); | |
1186 | ||
1187 | blhe = bfd_link_hash_lookup (info->hash, | |
1188 | name, | |
f38a2680 | 1189 | false, false, true); |
8a5b676c | 1190 | |
1579bae1 | 1191 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
1192 | exported_symbol_offsets[i] = blhe->u.def.value; |
1193 | ||
8a5b676c DD |
1194 | free (name); |
1195 | } | |
1196 | } | |
1197 | ||
252b5132 | 1198 | static void |
1579bae1 | 1199 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 1200 | { |
03a1c9a7 | 1201 | int s, hint; |
252b5132 | 1202 | unsigned char *edirectory; |
2f9636ba AM |
1203 | unsigned char *eaddresses; |
1204 | unsigned char *enameptrs; | |
1205 | unsigned char *eordinals; | |
47639182 | 1206 | char *enamestr; |
252b5132 | 1207 | |
1579bae1 | 1208 | edata_d = xmalloc (edata_sz); |
252b5132 | 1209 | |
86b1cc60 | 1210 | /* Note use of array pointer math here. */ |
252b5132 | 1211 | edirectory = edata_d; |
c7e2358a | 1212 | eaddresses = edirectory + 40; |
2f9636ba AM |
1213 | enameptrs = eaddresses + 4 * export_table_size; |
1214 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 1215 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 1216 | |
1579bae1 AM |
1217 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
1218 | + edata_s->output_section->vma - image_base) | |
252b5132 | 1219 | |
c2a94a7a | 1220 | memset (edata_d, 0, edata_sz); |
0cb112f7 | 1221 | |
00386881 | 1222 | if (pe_data (abfd)->timestamp == -1) |
0cb112f7 | 1223 | H_PUT_32 (abfd, time (0), edata_d + 4); |
00386881 NC |
1224 | else |
1225 | H_PUT_32 (abfd, pe_data (abfd)->timestamp, edata_d + 4); | |
0cb112f7 | 1226 | |
252b5132 RH |
1227 | if (pe_def_file->version_major != -1) |
1228 | { | |
1229 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1230 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1231 | } | |
775cabad | 1232 | |
252b5132 RH |
1233 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1234 | strcpy (enamestr, dll_name); | |
1235 | enamestr += strlen (enamestr) + 1; | |
1236 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1237 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1238 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1239 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1240 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1241 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1242 | ||
8a5b676c DD |
1243 | fill_exported_offsets (abfd, info); |
1244 | ||
03a1c9a7 NC |
1245 | /* Ok, now for the filling in part. |
1246 | Scan alphabetically - ie the ordering in the exports[] table, | |
1247 | rather than by ordinal - the ordering in the exported_symbol[] | |
1248 | table. See dlltool.c and: | |
6c19b93b | 1249 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html |
1579bae1 | 1250 | for more information. */ |
252b5132 | 1251 | hint = 0; |
03a1c9a7 | 1252 | for (s = 0; s < NE; s++) |
252b5132 | 1253 | { |
f5a95868 | 1254 | struct bfd_section *ssec = exported_symbol_sections[s]; |
6c19b93b AM |
1255 | if (pe_def_file->exports[s].ordinal != -1 |
1256 | && (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1257 | { |
45b1f63c | 1258 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1259 | |
a8d701fd DS |
1260 | if (pe_def_file->exports[s].flag_forward) |
1261 | { | |
1262 | bfd_put_32 (abfd, ERVA (enamestr), | |
6c19b93b | 1263 | eaddresses + 4 * (ord - min_ordinal)); |
a8d701fd DS |
1264 | |
1265 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1266 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1267 | } | |
1268 | else | |
1269 | { | |
6ca0987a | 1270 | bfd_vma srva = (exported_symbol_offsets[s] |
a8d701fd DS |
1271 | + ssec->output_section->vma |
1272 | + ssec->output_offset); | |
1273 | ||
1274 | bfd_put_32 (abfd, srva - image_base, | |
6c19b93b | 1275 | eaddresses + 4 * (ord - min_ordinal)); |
a8d701fd | 1276 | } |
775cabad | 1277 | |
252b5132 RH |
1278 | if (!pe_def_file->exports[s].flag_noname) |
1279 | { | |
1280 | char *ename = pe_def_file->exports[s].name; | |
7fcab871 KT |
1281 | if (pe_def_file->exports[s].its_name) |
1282 | ename = pe_def_file->exports[s].its_name; | |
03a1c9a7 | 1283 | |
2f9636ba AM |
1284 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1285 | enameptrs += 4; | |
252b5132 RH |
1286 | strcpy (enamestr, ename); |
1287 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1288 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1289 | eordinals += 2; | |
252b5132 RH |
1290 | pe_def_file->exports[s].hint = hint++; |
1291 | } | |
252b5132 RH |
1292 | } |
1293 | } | |
1294 | } | |
1295 | ||
b044cda1 | 1296 | |
198beae2 | 1297 | static struct bfd_section *current_sec; |
b044cda1 | 1298 | |
317ff008 EB |
1299 | static void |
1300 | pe_walk_relocs (struct bfd_link_info *info, | |
1301 | char *name, | |
1302 | const char *symname, | |
1303 | struct bfd_hash_table *import_hash, | |
1304 | void (*cb) (arelent *, asection *, char *, const char *)) | |
b044cda1 CW |
1305 | { |
1306 | bfd *b; | |
0d888aac | 1307 | asection *s; |
b044cda1 | 1308 | |
c72f2fb2 | 1309 | for (b = info->input_bfds; b; b = b->link.next) |
b044cda1 | 1310 | { |
775cabad | 1311 | asymbol **symbols; |
775cabad | 1312 | |
5c1d2f5f AM |
1313 | if (!bfd_generic_link_read_symbols (b)) |
1314 | { | |
df5f2391 | 1315 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); |
5c1d2f5f AM |
1316 | return; |
1317 | } | |
1318 | ||
1319 | symbols = bfd_get_outsymbols (b); | |
b044cda1 CW |
1320 | |
1321 | for (s = b->sections; s; s = s->next) | |
1322 | { | |
775cabad NC |
1323 | arelent **relocs; |
1324 | int relsize, nrelocs, i; | |
fd361982 | 1325 | int flags = bfd_section_flags (s); |
b044cda1 | 1326 | |
775cabad | 1327 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1328 | if (flags & SEC_LINK_ONCE |
1329 | && s->output_section == bfd_abs_section_ptr) | |
1330 | continue; | |
1331 | ||
0d888aac | 1332 | current_sec = s; |
b044cda1 | 1333 | |
b044cda1 | 1334 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1335 | relocs = xmalloc (relsize); |
b044cda1 CW |
1336 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1337 | ||
1338 | for (i = 0; i < nrelocs; i++) | |
1339 | { | |
fc0a2244 | 1340 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1341 | |
317ff008 EB |
1342 | /* Warning: the callback needs to be passed NAME directly. */ |
1343 | if (import_hash) | |
1344 | { | |
f38a2680 | 1345 | if (bfd_hash_lookup (import_hash, sym->name, false, false)) |
317ff008 EB |
1346 | { |
1347 | strcpy (name, sym->name); | |
1348 | cb (relocs[i], s, name, symname); | |
1349 | } | |
1350 | } | |
1351 | else | |
1352 | { | |
1353 | if (strcmp (name, sym->name) == 0) | |
1354 | cb (relocs[i], s, name, symname); | |
1355 | } | |
b044cda1 | 1356 | } |
775cabad | 1357 | |
b044cda1 | 1358 | free (relocs); |
775cabad | 1359 | |
b044cda1 CW |
1360 | /* Warning: the allocated symbols are remembered in BFD and reused |
1361 | later, so don't free them! */ | |
1362 | /* free (symbols); */ | |
1363 | } | |
1364 | } | |
1365 | } | |
1366 | ||
317ff008 EB |
1367 | void |
1368 | pe_find_data_imports (const char *symhead, | |
1369 | void (*cb) (arelent *, asection *, char *, const char *)) | |
1370 | { | |
1371 | struct bfd_link_hash_entry *undef; | |
1372 | const size_t headlen = strlen (symhead); | |
1373 | size_t namelen = 0; | |
1374 | char *buf, *name; | |
1375 | struct bfd_hash_table *import_hash; | |
1376 | ||
1377 | for (undef = link_info.hash->undefs; undef; undef = undef->u.undef.next) | |
1378 | if (undef->type == bfd_link_hash_undefined) | |
1379 | { | |
1380 | size_t len = strlen (undef->root.string); | |
1381 | if (namelen < len) | |
1382 | namelen = len; | |
1383 | } | |
1384 | if (namelen == 0) | |
1385 | return; | |
1386 | ||
1387 | /* For the pseudo-relocation support version 2, we can collect the symbols | |
1388 | that are subject to auto-import and adjust the relocations en masse. */ | |
1389 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
1390 | { | |
1391 | import_hash | |
1392 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
1393 | if (!bfd_hash_table_init (import_hash, | |
1394 | bfd_hash_newfunc, | |
1395 | sizeof (struct bfd_hash_entry))) | |
1396 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); | |
1397 | } | |
1398 | else | |
1399 | import_hash = NULL; | |
1400 | ||
1401 | /* We are being a bit cunning here. The buffer will have space for | |
1402 | prefixes at the beginning. The prefix is modified here and in a | |
1403 | number of functions called from this function. */ | |
1404 | #define PREFIX_LEN 32 | |
1405 | buf = xmalloc (PREFIX_LEN + namelen + 1); | |
1406 | name = buf + PREFIX_LEN; | |
1407 | ||
1408 | for (undef = link_info.hash->undefs; undef; undef = undef->u.undef.next) | |
1409 | if (undef->type == bfd_link_hash_undefined) | |
1410 | { | |
1411 | struct bfd_link_hash_entry *sym; | |
1412 | char *impname; | |
1413 | ||
1414 | if (pe_dll_extra_pe_debug) | |
1415 | printf ("%s:%s\n", __FUNCTION__, undef->root.string); | |
1416 | ||
1417 | strcpy (name, undef->root.string); | |
1418 | impname = name - (sizeof "__imp_" - 1); | |
1419 | memcpy (impname, "__imp_", sizeof "__imp_" - 1); | |
1420 | ||
1421 | sym = bfd_link_hash_lookup (link_info.hash, impname, 0, 0, 1); | |
1422 | ||
1423 | if (sym && sym->type == bfd_link_hash_defined) | |
1424 | { | |
1425 | if (import_hash) | |
f38a2680 | 1426 | bfd_hash_lookup (import_hash, undef->root.string, true, false); |
317ff008 EB |
1427 | else |
1428 | { | |
1429 | bfd *b = sym->u.def.section->owner; | |
1430 | const char *symname = NULL; | |
1431 | asymbol **symbols; | |
1432 | int nsyms, i; | |
1433 | ||
1434 | if (!bfd_generic_link_read_symbols (b)) | |
1435 | { | |
1436 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); | |
1437 | return; | |
1438 | } | |
1439 | ||
1440 | symbols = bfd_get_outsymbols (b); | |
1441 | nsyms = bfd_get_symcount (b); | |
1442 | ||
1443 | for (i = 0; i < nsyms; i++) | |
1444 | if (strncmp (symbols[i]->name, symhead, headlen) == 0) | |
1445 | { | |
1446 | if (pe_dll_extra_pe_debug) | |
1447 | printf ("->%s\n", symbols[i]->name); | |
1448 | ||
1449 | symname = symbols[i]->name + headlen; | |
1450 | break; | |
1451 | } | |
1452 | ||
1453 | /* If the symobl isn't part of an import table, there is no | |
1454 | point in building a fixup, this would give rise to link | |
1455 | errors for mangled symbols instead of the original one. */ | |
1456 | if (symname) | |
1457 | pe_walk_relocs (&link_info, name, symname, NULL, cb); | |
1458 | else | |
1459 | continue; | |
1460 | } | |
1461 | ||
1462 | /* Let's differentiate it somehow from defined. */ | |
1463 | undef->type = bfd_link_hash_defweak; | |
1464 | undef->u.def.value = sym->u.def.value; | |
1465 | undef->u.def.section = sym->u.def.section; | |
1466 | ||
de07a745 EB |
1467 | /* We replace the original name with the __imp_ prefixed one, this |
1468 | 1) may trash memory 2) leads to duplicate symbols. But this is | |
1469 | better than having a misleading name that can confuse GDB. */ | |
1470 | undef->root.string = sym->root.string; | |
1471 | ||
317ff008 EB |
1472 | if (link_info.pei386_auto_import == -1) |
1473 | { | |
f38a2680 | 1474 | static bool warned = false; |
317ff008 EB |
1475 | |
1476 | info_msg (_("Info: resolving %s by linking to %s " | |
1477 | "(auto-import)\n"), name, impname); | |
1478 | ||
1479 | /* PR linker/4844. */ | |
1480 | if (!warned) | |
1481 | { | |
1482 | einfo (_("%P: warning: auto-importing has been activated " | |
1483 | "without --enable-auto-import specified on the " | |
1484 | "command line; this should work unless it " | |
1485 | "involves constant data structures referencing " | |
1486 | "symbols from auto-imported DLLs\n")); | |
f38a2680 | 1487 | warned = true; |
317ff008 EB |
1488 | } |
1489 | } | |
1490 | } | |
1491 | } | |
1492 | ||
1493 | /* If we have the import hash table, walk the relocations only once. */ | |
1494 | if (import_hash) | |
1495 | { | |
1496 | pe_walk_relocs (&link_info, name, NULL, import_hash, cb); | |
1497 | bfd_hash_table_free (import_hash); | |
1498 | free (import_hash); | |
1499 | } | |
1500 | ||
1501 | free (buf); | |
1502 | } | |
1503 | ||
775cabad | 1504 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1505 | |
1506 | static void | |
1579bae1 | 1507 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 1508 | { |
86b1cc60 | 1509 | /* For .reloc stuff. */ |
c6c37250 | 1510 | reloc_data_type *reloc_data; |
252b5132 RH |
1511 | int total_relocs = 0; |
1512 | int i; | |
6ca0987a KT |
1513 | bfd_vma sec_page = (bfd_vma) -1; |
1514 | bfd_vma page_ptr, page_count; | |
252b5132 RH |
1515 | int bi; |
1516 | bfd *b; | |
198beae2 | 1517 | struct bfd_section *s; |
252b5132 | 1518 | |
bd3d1480 | 1519 | if (reloc_s == NULL || reloc_s->output_section == bfd_abs_section_ptr) |
514b4e19 | 1520 | return; |
252b5132 | 1521 | total_relocs = 0; |
c72f2fb2 | 1522 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
1523 | for (s = b->sections; s; s = s->next) |
1524 | total_relocs += s->reloc_count; | |
1525 | ||
1579bae1 | 1526 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1527 | |
1528 | total_relocs = 0; | |
1529 | bi = 0; | |
c72f2fb2 | 1530 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link.next) |
252b5132 RH |
1531 | { |
1532 | arelent **relocs; | |
91d6fa6a | 1533 | int relsize, nrelocs; |
252b5132 RH |
1534 | |
1535 | for (s = b->sections; s; s = s->next) | |
1536 | { | |
6ca0987a | 1537 | bfd_vma sec_vma = s->output_section->vma + s->output_offset; |
252b5132 | 1538 | asymbol **symbols; |
252b5132 | 1539 | |
86b1cc60 | 1540 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1541 | if (!(s->output_section->flags & SEC_LOAD)) |
1542 | continue; | |
1543 | ||
1544 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1545 | seen it happen - DJ */ |
45dfa85a | 1546 | if (s->output_section == bfd_abs_section_ptr) |
252b5132 RH |
1547 | continue; |
1548 | ||
1549 | if (s->output_section->vma == 0) | |
1550 | { | |
86b1cc60 | 1551 | /* Huh? Shouldn't happen, but punt if it does. */ |
514b4e19 | 1552 | #if 0 /* This happens when linking with --just-symbols=<file>, so do not generate an error. */ |
ce1feff0 | 1553 | einfo (_("%P: zero vma section reloc detected: `%s' #%d f=%d\n"), |
252b5132 RH |
1554 | s->output_section->name, s->output_section->index, |
1555 | s->output_section->flags); | |
514b4e19 | 1556 | #endif |
252b5132 RH |
1557 | continue; |
1558 | } | |
1559 | ||
5c1d2f5f AM |
1560 | if (!bfd_generic_link_read_symbols (b)) |
1561 | { | |
df5f2391 | 1562 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); |
5c1d2f5f AM |
1563 | return; |
1564 | } | |
252b5132 | 1565 | |
5c1d2f5f | 1566 | symbols = bfd_get_outsymbols (b); |
252b5132 | 1567 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1568 | relocs = xmalloc (relsize); |
252b5132 RH |
1569 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1570 | ||
1571 | for (i = 0; i < nrelocs; i++) | |
1572 | { | |
b044cda1 | 1573 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1574 | { |
fc0a2244 | 1575 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1576 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1577 | } |
252b5132 | 1578 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1579 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1580 | { |
fc0a2244 | 1581 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
6fa7408d JB |
1582 | const struct bfd_link_hash_entry *blhe |
1583 | = bfd_wrapped_link_hash_lookup (abfd, info, sym->name, | |
f38a2680 | 1584 | false, false, false); |
775cabad | 1585 | |
1b610c93 | 1586 | /* Don't create relocs for undefined weak symbols. */ |
49314f87 DS |
1587 | if (sym->flags == BSF_WEAK) |
1588 | { | |
9dda37c1 DK |
1589 | if (blhe && blhe->type == bfd_link_hash_undefweak) |
1590 | { | |
1591 | /* Check aux sym and see if it is defined or not. */ | |
1592 | struct coff_link_hash_entry *h, *h2; | |
1593 | h = (struct coff_link_hash_entry *)blhe; | |
1594 | if (h->symbol_class != C_NT_WEAK || h->numaux != 1) | |
1595 | continue; | |
1596 | h2 = h->auxbfd->tdata.coff_obj_data->sym_hashes | |
1597 | [h->aux->x_sym.x_tagndx.l]; | |
1598 | /* We don't want a base reloc if the aux sym is not | |
1599 | found, undefined, or if it is the constant ABS | |
1600 | zero default value. (We broaden that slightly by | |
1601 | not testing the value, just the section; there's | |
1602 | no reason we'd want a reference to any absolute | |
1603 | address to get relocated during rebasing). */ | |
1604 | if (!h2 || h2->root.type == bfd_link_hash_undefined | |
45dfa85a | 1605 | || h2->root.u.def.section == bfd_abs_section_ptr) |
9dda37c1 DK |
1606 | continue; |
1607 | } | |
1608 | else if (!blhe || blhe->type != bfd_link_hash_defined) | |
1609 | continue; | |
49314f87 | 1610 | } |
0432176d DK |
1611 | /* Nor for Dwarf FDE references to discarded sections. */ |
1612 | else if (bfd_is_abs_section (sym->section->output_section)) | |
1613 | { | |
1614 | /* We only ignore relocs from .eh_frame sections, as | |
1615 | they are discarded by the final link rather than | |
1616 | resolved against the kept section. */ | |
1617 | if (!strcmp (s->name, ".eh_frame")) | |
1618 | continue; | |
1619 | } | |
6fa7408d JB |
1620 | /* Nor for absolute symbols. */ |
1621 | else if (blhe && ldexp_is_final_sym_absolute (blhe) | |
1622 | && (!blhe->linker_def | |
1623 | || (strcmp (sym->name, "__image_base__") | |
1624 | && strcmp (sym->name, U ("__ImageBase"))))) | |
1625 | continue; | |
49314f87 | 1626 | |
c6c37250 | 1627 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; |
08dec09d | 1628 | reloc_data[total_relocs].idx = total_relocs; |
5cc18311 | 1629 | |
bd3d1480 JB |
1630 | /* Since we're only about to determine .reloc's size, |
1631 | subsequent output section VMA calculations will shift up | |
1632 | sections at this or higher addresses. Relocations for | |
1633 | such sections would hence end up not being correct. */ | |
1634 | if (reloc_data[total_relocs].vma | |
1635 | >= reloc_s->output_section->vma) | |
1636 | einfo (_("%P: base relocation for section `%s' above " | |
1637 | ".reloc section\n"), s->output_section->name); | |
1638 | ||
344a211f | 1639 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1640 | |
344a211f NC |
1641 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1642 | relocs[i]->howto->rightshift) | |
252b5132 | 1643 | { |
99ad8390 NC |
1644 | #ifdef pe_use_x86_64 |
1645 | case BITS_AND_SHIFT (64, 0): | |
1646 | reloc_data[total_relocs].type = 10; | |
1647 | total_relocs++; | |
1648 | break; | |
1649 | #endif | |
344a211f | 1650 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1651 | reloc_data[total_relocs].type = 3; |
1652 | total_relocs++; | |
252b5132 | 1653 | break; |
344a211f NC |
1654 | case BITS_AND_SHIFT (16, 0): |
1655 | reloc_data[total_relocs].type = 2; | |
1656 | total_relocs++; | |
1657 | break; | |
1658 | case BITS_AND_SHIFT (16, 16): | |
1659 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1660 | /* FIXME: we can't know the symbol's right value |
1661 | yet, but we probably can safely assume that | |
1662 | CE will relocate us in 64k blocks, so leaving | |
1663 | it zero is safe. */ | |
344a211f NC |
1664 | reloc_data[total_relocs].extra = 0; |
1665 | total_relocs++; | |
1666 | break; | |
1667 | case BITS_AND_SHIFT (26, 2): | |
1668 | reloc_data[total_relocs].type = 5; | |
1669 | total_relocs++; | |
1670 | break; | |
fea39bcb | 1671 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1672 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1673 | Those ARM_xxx definitions should go in proper | |
1674 | header someday. */ | |
1675 | if (relocs[i]->howto->type == 0 | |
1676 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1677 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1678 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1679 | that has already been fully processed during a | |
1680 | previous link stage, so ignore it here. */ | |
1681 | break; | |
1682 | /* Fall through. */ | |
252b5132 RH |
1683 | default: |
1684 | /* xgettext:c-format */ | |
df5f2391 | 1685 | einfo (_("%X%P: error: %d-bit reloc in dll\n"), |
252b5132 RH |
1686 | relocs[i]->howto->bitsize); |
1687 | break; | |
1688 | } | |
1689 | } | |
1690 | } | |
1691 | free (relocs); | |
86b1cc60 KH |
1692 | /* Warning: the allocated symbols are remembered in BFD and |
1693 | reused later, so don't free them! */ | |
252b5132 RH |
1694 | } |
1695 | } | |
1696 | ||
1697 | /* At this point, we have total_relocs relocation addresses in | |
1698 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1699 | We must now create the new sections. */ |
c6c37250 | 1700 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1701 | |
1702 | for (i = 0; i < total_relocs; i++) | |
1703 | { | |
6ca0987a | 1704 | bfd_vma this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1705 | |
252b5132 RH |
1706 | if (this_page != sec_page) |
1707 | { | |
775cabad | 1708 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1709 | reloc_sz += 8; |
1710 | sec_page = this_page; | |
1711 | } | |
5cc18311 | 1712 | |
252b5132 | 1713 | reloc_sz += 2; |
5cc18311 | 1714 | |
344a211f NC |
1715 | if (reloc_data[i].type == 4) |
1716 | reloc_sz += 2; | |
252b5132 | 1717 | } |
b7a26f91 | 1718 | |
775cabad | 1719 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 | 1720 | reloc_d = xmalloc (reloc_sz); |
6ca0987a | 1721 | sec_page = (bfd_vma) -1; |
252b5132 | 1722 | reloc_sz = 0; |
6ca0987a | 1723 | page_ptr = (bfd_vma) -1; |
252b5132 | 1724 | page_count = 0; |
775cabad | 1725 | |
252b5132 RH |
1726 | for (i = 0; i < total_relocs; i++) |
1727 | { | |
6ca0987a KT |
1728 | bfd_vma rva = reloc_data[i].vma - image_base; |
1729 | bfd_vma this_page = (rva & ~0xfff); | |
775cabad | 1730 | |
252b5132 RH |
1731 | if (this_page != sec_page) |
1732 | { | |
1733 | while (reloc_sz & 3) | |
1734 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1735 | |
6ca0987a | 1736 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1737 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1738 | |
252b5132 RH |
1739 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1740 | page_ptr = reloc_sz; | |
1741 | reloc_sz += 8; | |
1742 | sec_page = this_page; | |
1743 | page_count = 0; | |
1744 | } | |
775cabad | 1745 | |
d643799d | 1746 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1747 | reloc_d + reloc_sz); |
252b5132 | 1748 | reloc_sz += 2; |
775cabad | 1749 | |
c6c37250 DD |
1750 | if (reloc_data[i].type == 4) |
1751 | { | |
1752 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1753 | reloc_sz += 2; | |
1754 | } | |
775cabad | 1755 | |
252b5132 RH |
1756 | page_count++; |
1757 | } | |
775cabad | 1758 | |
252b5132 RH |
1759 | while (reloc_sz & 3) |
1760 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1761 | |
6ca0987a | 1762 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1763 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
252b5132 RH |
1764 | } |
1765 | ||
775cabad NC |
1766 | /* Given the exiting def_file structure, print out a .DEF file that |
1767 | corresponds to it. */ | |
252b5132 RH |
1768 | |
1769 | static void | |
1579bae1 | 1770 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1771 | { |
1772 | char *cp; | |
775cabad | 1773 | |
252b5132 RH |
1774 | for (cp = s; *cp; cp++) |
1775 | if (*cp == '\'' | |
1776 | || *cp == '"' | |
1777 | || *cp == '\\' | |
3882b010 | 1778 | || ISSPACE (*cp) |
252b5132 RH |
1779 | || *cp == ',' |
1780 | || *cp == ';') | |
1781 | needs_quotes = 1; | |
775cabad | 1782 | |
252b5132 RH |
1783 | if (needs_quotes) |
1784 | { | |
1785 | putc ('"', f); | |
775cabad | 1786 | |
252b5132 RH |
1787 | while (*s) |
1788 | { | |
1789 | if (*s == '"' || *s == '\\') | |
1790 | putc ('\\', f); | |
775cabad | 1791 | |
252b5132 RH |
1792 | putc (*s, f); |
1793 | s++; | |
1794 | } | |
775cabad | 1795 | |
252b5132 RH |
1796 | putc ('"', f); |
1797 | } | |
1798 | else | |
1799 | fputs (s, f); | |
1800 | } | |
1801 | ||
1802 | void | |
1579bae1 | 1803 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1804 | { |
1805 | int i; | |
1806 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1807 | |
252b5132 | 1808 | if (out == NULL) |
775cabad | 1809 | /* xgettext:c-format */ |
df5f2391 | 1810 | einfo (_("%P: can't open output def file %s\n"), |
611a3ca9 | 1811 | pe_out_def_filename); |
252b5132 RH |
1812 | |
1813 | if (pe_def_file) | |
1814 | { | |
1815 | if (pe_def_file->name) | |
1816 | { | |
1817 | if (pe_def_file->is_dll) | |
1818 | fprintf (out, "LIBRARY "); | |
1819 | else | |
1820 | fprintf (out, "NAME "); | |
775cabad | 1821 | |
252b5132 | 1822 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1823 | |
f13a99db | 1824 | if (pe_data (link_info.output_bfd)->pe_opthdr.ImageBase) |
0ead4f8d KT |
1825 | { |
1826 | fprintf (out, " BASE=0x"); | |
1827 | fprintf_vma (out, ((bfd_vma) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase)); | |
1828 | } | |
252b5132 RH |
1829 | fprintf (out, "\n"); |
1830 | } | |
1831 | ||
1832 | if (pe_def_file->description) | |
1833 | { | |
1834 | fprintf (out, "DESCRIPTION "); | |
1835 | quoteput (pe_def_file->description, out, 1); | |
1836 | fprintf (out, "\n"); | |
1837 | } | |
1838 | ||
1839 | if (pe_def_file->version_minor != -1) | |
1840 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1841 | pe_def_file->version_minor); | |
1842 | else if (pe_def_file->version_major != -1) | |
1843 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1844 | ||
1845 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1846 | fprintf (out, "\n"); | |
1847 | ||
1848 | if (pe_def_file->stack_commit != -1) | |
1849 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1850 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1851 | else if (pe_def_file->stack_reserve != -1) | |
1852 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1853 | |
252b5132 RH |
1854 | if (pe_def_file->heap_commit != -1) |
1855 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1856 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1857 | else if (pe_def_file->heap_reserve != -1) | |
1858 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1859 | ||
1860 | if (pe_def_file->num_section_defs > 0) | |
1861 | { | |
1862 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1863 | |
252b5132 RH |
1864 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1865 | { | |
1866 | fprintf (out, " "); | |
1867 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1868 | |
252b5132 RH |
1869 | if (pe_def_file->section_defs[i].class) |
1870 | { | |
1871 | fprintf (out, " CLASS "); | |
1872 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1873 | } | |
775cabad | 1874 | |
252b5132 RH |
1875 | if (pe_def_file->section_defs[i].flag_read) |
1876 | fprintf (out, " READ"); | |
775cabad | 1877 | |
252b5132 RH |
1878 | if (pe_def_file->section_defs[i].flag_write) |
1879 | fprintf (out, " WRITE"); | |
775cabad | 1880 | |
252b5132 RH |
1881 | if (pe_def_file->section_defs[i].flag_execute) |
1882 | fprintf (out, " EXECUTE"); | |
775cabad | 1883 | |
252b5132 RH |
1884 | if (pe_def_file->section_defs[i].flag_shared) |
1885 | fprintf (out, " SHARED"); | |
775cabad | 1886 | |
252b5132 RH |
1887 | fprintf (out, "\n"); |
1888 | } | |
1889 | } | |
1890 | ||
1891 | if (pe_def_file->num_exports > 0) | |
1892 | { | |
b044cda1 | 1893 | fprintf (out, "EXPORTS\n"); |
775cabad | 1894 | |
252b5132 RH |
1895 | for (i = 0; i < pe_def_file->num_exports; i++) |
1896 | { | |
1897 | def_file_export *e = pe_def_file->exports + i; | |
1898 | fprintf (out, " "); | |
1899 | quoteput (e->name, out, 0); | |
775cabad | 1900 | |
252b5132 RH |
1901 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1902 | { | |
1903 | fprintf (out, " = "); | |
1904 | quoteput (e->internal_name, out, 0); | |
1905 | } | |
775cabad | 1906 | |
252b5132 RH |
1907 | if (e->ordinal != -1) |
1908 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1909 | |
252b5132 RH |
1910 | if (e->flag_private) |
1911 | fprintf (out, " PRIVATE"); | |
775cabad | 1912 | |
252b5132 RH |
1913 | if (e->flag_constant) |
1914 | fprintf (out, " CONSTANT"); | |
775cabad | 1915 | |
252b5132 RH |
1916 | if (e->flag_noname) |
1917 | fprintf (out, " NONAME"); | |
775cabad | 1918 | |
252b5132 RH |
1919 | if (e->flag_data) |
1920 | fprintf (out, " DATA"); | |
1921 | ||
1922 | fprintf (out, "\n"); | |
1923 | } | |
1924 | } | |
1925 | ||
1926 | if (pe_def_file->num_imports > 0) | |
1927 | { | |
1928 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1929 | |
252b5132 RH |
1930 | for (i = 0; i < pe_def_file->num_imports; i++) |
1931 | { | |
1932 | def_file_import *im = pe_def_file->imports + i; | |
1933 | fprintf (out, " "); | |
775cabad | 1934 | |
252b5132 RH |
1935 | if (im->internal_name |
1936 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1937 | { | |
1938 | quoteput (im->internal_name, out, 0); | |
1939 | fprintf (out, " = "); | |
1940 | } | |
775cabad | 1941 | |
252b5132 RH |
1942 | quoteput (im->module->name, out, 0); |
1943 | fprintf (out, "."); | |
775cabad | 1944 | |
252b5132 RH |
1945 | if (im->name) |
1946 | quoteput (im->name, out, 0); | |
1947 | else | |
1948 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1949 | |
7fcab871 KT |
1950 | if (im->its_name) |
1951 | { | |
1952 | fprintf (out, " == "); | |
1953 | quoteput (im->its_name, out, 0); | |
1954 | } | |
1955 | ||
252b5132 RH |
1956 | fprintf (out, "\n"); |
1957 | } | |
1958 | } | |
1959 | } | |
1960 | else | |
1961 | fprintf (out, _("; no contents available\n")); | |
1962 | ||
1963 | if (fclose (out) == EOF) | |
775cabad | 1964 | /* xgettext:c-format */ |
df5f2391 | 1965 | einfo (_("%P: error closing file `%s'\n"), pe_out_def_filename); |
252b5132 RH |
1966 | } |
1967 | ||
775cabad | 1968 | /* Generate the import library. */ |
252b5132 RH |
1969 | |
1970 | static asymbol **symtab; | |
1971 | static int symptr; | |
1972 | static int tmp_seq; | |
1973 | static const char *dll_filename; | |
1974 | static char *dll_symname; | |
1975 | ||
45dfa85a | 1976 | #define UNDSEC bfd_und_section_ptr |
252b5132 RH |
1977 | |
1978 | static asection * | |
1579bae1 | 1979 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1980 | { |
1981 | asection *sec; | |
1982 | asymbol *sym; | |
1983 | ||
1984 | sec = bfd_make_section_old_way (abfd, name); | |
fd361982 AM |
1985 | bfd_set_section_flags (sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
1986 | bfd_set_section_alignment (sec, align); | |
86b1cc60 | 1987 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1988 | sec->output_section = sec; |
1989 | ||
1990 | sym = bfd_make_empty_symbol (abfd); | |
1991 | symtab[symptr++] = sym; | |
1992 | sym->name = sec->name; | |
1993 | sym->section = sec; | |
1994 | sym->flags = BSF_LOCAL; | |
1995 | sym->value = 0; | |
1996 | ||
1997 | return sec; | |
1998 | } | |
1999 | ||
2000 | static void | |
1579bae1 AM |
2001 | quick_symbol (bfd *abfd, |
2002 | const char *n1, | |
2003 | const char *n2, | |
2004 | const char *n3, | |
2005 | asection *sec, | |
2006 | int flags, | |
2007 | int addr) | |
252b5132 RH |
2008 | { |
2009 | asymbol *sym; | |
1579bae1 | 2010 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 2011 | |
252b5132 RH |
2012 | strcpy (name, n1); |
2013 | strcat (name, n2); | |
2014 | strcat (name, n3); | |
2015 | sym = bfd_make_empty_symbol (abfd); | |
2016 | sym->name = name; | |
2017 | sym->section = sec; | |
2018 | sym->flags = flags; | |
2019 | sym->value = addr; | |
2020 | symtab[symptr++] = sym; | |
2021 | } | |
2022 | ||
2023 | static arelent *reltab = 0; | |
2024 | static int relcount = 0, relsize = 0; | |
2025 | ||
2026 | static void | |
0ead4f8d | 2027 | quick_reloc (bfd *abfd, bfd_size_type address, int which_howto, int symidx) |
252b5132 | 2028 | { |
1579bae1 | 2029 | if (relcount >= relsize - 1) |
252b5132 RH |
2030 | { |
2031 | relsize += 10; | |
2032 | if (reltab) | |
1579bae1 | 2033 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 2034 | else |
1579bae1 | 2035 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
2036 | } |
2037 | reltab[relcount].address = address; | |
2038 | reltab[relcount].addend = 0; | |
2039 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
2040 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
2041 | relcount++; | |
2042 | } | |
2043 | ||
2044 | static void | |
2045 | save_relocs (asection *sec) | |
2046 | { | |
2047 | int i; | |
775cabad | 2048 | |
252b5132 RH |
2049 | sec->relocation = reltab; |
2050 | sec->reloc_count = relcount; | |
1579bae1 | 2051 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 2052 | for (i = 0; i < relcount; i++) |
252b5132 RH |
2053 | sec->orelocation[i] = sec->relocation + i; |
2054 | sec->orelocation[relcount] = 0; | |
2055 | sec->flags |= SEC_RELOC; | |
2056 | reltab = 0; | |
2057 | relcount = relsize = 0; | |
2058 | } | |
2059 | ||
775cabad | 2060 | /* .section .idata$2 |
6c19b93b | 2061 | .global __head_my_dll |
775cabad | 2062 | __head_my_dll: |
6c19b93b AM |
2063 | .rva hname |
2064 | .long 0 | |
2065 | .long 0 | |
2066 | .rva __my_dll_iname | |
2067 | .rva fthunk | |
2068 | ||
2069 | .section .idata$5 | |
2070 | .long 0 | |
775cabad | 2071 | fthunk: |
b7a26f91 | 2072 | |
6c19b93b AM |
2073 | .section .idata$4 |
2074 | .long 0 | |
775cabad | 2075 | hname: */ |
252b5132 RH |
2076 | |
2077 | static bfd * | |
1579bae1 | 2078 | make_head (bfd *parent) |
252b5132 RH |
2079 | { |
2080 | asection *id2, *id5, *id4; | |
2081 | unsigned char *d2, *d5, *d4; | |
2082 | char *oname; | |
2083 | bfd *abfd; | |
2084 | ||
1579bae1 | 2085 | oname = xmalloc (20); |
252b5132 RH |
2086 | sprintf (oname, "d%06d.o", tmp_seq); |
2087 | tmp_seq++; | |
2088 | ||
2089 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2090 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2091 | bfd_make_writable (abfd); |
2092 | ||
2093 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2094 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2095 | |
2096 | symptr = 0; | |
1579bae1 | 2097 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
2098 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
2099 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2100 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
2101 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
2102 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
2103 | |
2104 | /* OK, pay attention here. I got confused myself looking back at | |
2105 | it. We create a four-byte section to mark the beginning of the | |
2106 | list, and we include an offset of 4 in the section, so that the | |
2107 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 2108 | the start of the list of sections from other objects. */ |
252b5132 | 2109 | |
fd361982 | 2110 | bfd_set_section_size (id2, 20); |
1579bae1 | 2111 | d2 = xmalloc (20); |
252b5132 RH |
2112 | id2->contents = d2; |
2113 | memset (d2, 0, 20); | |
ce11ba6c KT |
2114 | if (pe_use_nul_prefixed_import_tables) |
2115 | d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */ | |
252b5132 RH |
2116 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2117 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
2118 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
2119 | save_relocs (id2); | |
2120 | ||
ce11ba6c | 2121 | if (pe_use_nul_prefixed_import_tables) |
fd361982 | 2122 | bfd_set_section_size (id5, PE_IDATA5_SIZE); |
ce11ba6c | 2123 | else |
fd361982 | 2124 | bfd_set_section_size (id5, 0); |
99ad8390 | 2125 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 2126 | id5->contents = d5; |
99ad8390 | 2127 | memset (d5, 0, PE_IDATA5_SIZE); |
ce11ba6c | 2128 | if (pe_use_nul_prefixed_import_tables) |
fd361982 | 2129 | bfd_set_section_size (id4, PE_IDATA4_SIZE); |
ce11ba6c | 2130 | else |
fd361982 | 2131 | bfd_set_section_size (id4, 0); |
99ad8390 | 2132 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 2133 | id4->contents = d4; |
99ad8390 | 2134 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 RH |
2135 | |
2136 | bfd_set_symtab (abfd, symtab, symptr); | |
2137 | ||
2138 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
ce11ba6c KT |
2139 | if (pe_use_nul_prefixed_import_tables) |
2140 | { | |
2141 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
2142 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
2143 | } | |
2144 | else | |
2145 | { | |
2146 | bfd_set_section_contents (abfd, id5, d5, 0, 0); | |
2147 | bfd_set_section_contents (abfd, id4, d4, 0, 0); | |
2148 | } | |
5cc18311 | 2149 | |
252b5132 RH |
2150 | bfd_make_readable (abfd); |
2151 | return abfd; | |
2152 | } | |
2153 | ||
775cabad | 2154 | /* .section .idata$4 |
6c19b93b | 2155 | .long 0 |
99ad8390 | 2156 | [.long 0] for PE+ |
6c19b93b AM |
2157 | .section .idata$5 |
2158 | .long 0 | |
99ad8390 | 2159 | [.long 0] for PE+ |
6c19b93b AM |
2160 | .section idata$7 |
2161 | .global __my_dll_iname | |
775cabad | 2162 | __my_dll_iname: |
6c19b93b | 2163 | .asciz "my.dll" */ |
252b5132 RH |
2164 | |
2165 | static bfd * | |
1579bae1 | 2166 | make_tail (bfd *parent) |
252b5132 RH |
2167 | { |
2168 | asection *id4, *id5, *id7; | |
2169 | unsigned char *d4, *d5, *d7; | |
2170 | int len; | |
2171 | char *oname; | |
2172 | bfd *abfd; | |
2173 | ||
1579bae1 | 2174 | oname = xmalloc (20); |
252b5132 RH |
2175 | sprintf (oname, "d%06d.o", tmp_seq); |
2176 | tmp_seq++; | |
2177 | ||
2178 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2179 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2180 | bfd_make_writable (abfd); |
2181 | ||
2182 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2183 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2184 | |
2185 | symptr = 0; | |
1579bae1 | 2186 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
2187 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
2188 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2189 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 2190 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 | 2191 | |
fd361982 | 2192 | bfd_set_section_size (id4, PE_IDATA4_SIZE); |
99ad8390 | 2193 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 2194 | id4->contents = d4; |
99ad8390 | 2195 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 | 2196 | |
fd361982 | 2197 | bfd_set_section_size (id5, PE_IDATA5_SIZE); |
99ad8390 | 2198 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 2199 | id5->contents = d5; |
99ad8390 | 2200 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 2201 | |
d643799d | 2202 | len = strlen (dll_filename) + 1; |
252b5132 | 2203 | if (len & 1) |
d643799d | 2204 | len++; |
fd361982 | 2205 | bfd_set_section_size (id7, len); |
1579bae1 | 2206 | d7 = xmalloc (len); |
252b5132 | 2207 | id7->contents = d7; |
47639182 | 2208 | strcpy ((char *) d7, dll_filename); |
e916811a CF |
2209 | /* If len was odd, the above |
2210 | strcpy leaves behind an undefined byte. That is harmless, | |
2211 | but we set it to 0 just so the binary dumps are pretty. */ | |
2212 | d7[len - 1] = 0; | |
252b5132 RH |
2213 | |
2214 | bfd_set_symtab (abfd, symtab, symptr); | |
2215 | ||
99ad8390 NC |
2216 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
2217 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
252b5132 RH |
2218 | bfd_set_section_contents (abfd, id7, d7, 0, len); |
2219 | ||
2220 | bfd_make_readable (abfd); | |
2221 | return abfd; | |
2222 | } | |
2223 | ||
775cabad | 2224 | /* .text |
6c19b93b AM |
2225 | .global _function |
2226 | .global ___imp_function | |
2227 | .global __imp__function | |
775cabad | 2228 | _function: |
6c19b93b | 2229 | jmp *__imp__function: |
b7a26f91 | 2230 | |
6c19b93b AM |
2231 | .section idata$7 |
2232 | .long __head_my_dll | |
b7a26f91 | 2233 | |
6c19b93b | 2234 | .section .idata$5 |
775cabad NC |
2235 | ___imp_function: |
2236 | __imp__function: | |
2237 | iat? | |
6c19b93b | 2238 | .section .idata$4 |
775cabad | 2239 | iat? |
6c19b93b | 2240 | .section .idata$6 |
775cabad | 2241 | ID<ordinal>: |
6c19b93b AM |
2242 | .short <hint> |
2243 | .asciz "function" xlate? (add underscore, kill at) */ | |
775cabad | 2244 | |
e916811a | 2245 | static const unsigned char jmp_ix86_bytes[] = |
775cabad | 2246 | { |
252b5132 RH |
2247 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
2248 | }; | |
2249 | ||
775cabad | 2250 | /* _function: |
6c19b93b AM |
2251 | mov.l ip+8,r0 |
2252 | mov.l @r0,r0 | |
2253 | jmp @r0 | |
2254 | nop | |
2255 | .dw __imp_function */ | |
344a211f | 2256 | |
e916811a | 2257 | static const unsigned char jmp_sh_bytes[] = |
775cabad | 2258 | { |
344a211f NC |
2259 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
2260 | }; | |
2261 | ||
775cabad | 2262 | /* _function: |
6c19b93b AM |
2263 | lui $t0,<high:__imp_function> |
2264 | lw $t0,<low:__imp_function> | |
2265 | jr $t0 | |
2266 | nop */ | |
344a211f | 2267 | |
e916811a | 2268 | static const unsigned char jmp_mips_bytes[] = |
775cabad | 2269 | { |
344a211f NC |
2270 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
2271 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
2272 | }; | |
252b5132 | 2273 | |
e916811a | 2274 | static const unsigned char jmp_arm_bytes[] = |
53baae48 NC |
2275 | { |
2276 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
2277 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
2278 | 0, 0, 0, 0 | |
2279 | }; | |
2280 | ||
2281 | ||
252b5132 | 2282 | static bfd * |
f38a2680 | 2283 | make_one (def_file_export *exp, bfd *parent, bool include_jmp_stub) |
252b5132 RH |
2284 | { |
2285 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 2286 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
2287 | int len; |
2288 | char *oname; | |
2289 | bfd *abfd; | |
e916811a | 2290 | const unsigned char *jmp_bytes = NULL; |
f0c87f88 | 2291 | int jmp_byte_count = 0; |
c6c37250 | 2292 | |
54727719 NC |
2293 | /* Include the jump stub section only if it is needed. A jump |
2294 | stub is needed if the symbol being imported <sym> is a function | |
2295 | symbol and there is at least one undefined reference to that | |
2296 | symbol. In other words, if all the import references to <sym> are | |
2297 | explicitly through _declspec(dllimport) then the jump stub is not | |
2298 | needed. */ | |
2299 | if (include_jmp_stub) | |
c6c37250 | 2300 | { |
54727719 NC |
2301 | switch (pe_details->pe_arch) |
2302 | { | |
2303 | case PE_ARCH_i386: | |
2304 | jmp_bytes = jmp_ix86_bytes; | |
2305 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
2306 | break; | |
2307 | case PE_ARCH_sh: | |
2308 | jmp_bytes = jmp_sh_bytes; | |
2309 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
2310 | break; | |
2311 | case PE_ARCH_mips: | |
2312 | jmp_bytes = jmp_mips_bytes; | |
2313 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
2314 | break; | |
2315 | case PE_ARCH_arm: | |
54727719 NC |
2316 | case PE_ARCH_arm_wince: |
2317 | jmp_bytes = jmp_arm_bytes; | |
2318 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
2319 | break; | |
2320 | default: | |
2321 | abort (); | |
2322 | } | |
c6c37250 | 2323 | } |
252b5132 | 2324 | |
1579bae1 | 2325 | oname = xmalloc (20); |
252b5132 RH |
2326 | sprintf (oname, "d%06d.o", tmp_seq); |
2327 | tmp_seq++; | |
2328 | ||
2329 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2330 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2331 | bfd_make_writable (abfd); |
2332 | ||
2333 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2334 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2335 | |
2336 | symptr = 0; | |
17299ac7 NC |
2337 | symtab = xmalloc (12 * sizeof (asymbol *)); |
2338 | ||
2339 | tx = quick_section (abfd, ".text", SEC_CODE | SEC_HAS_CONTENTS | SEC_READONLY, 2); | |
252b5132 RH |
2340 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); |
2341 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2342 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
2343 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 2344 | |
c9e38879 NC |
2345 | if (*exp->internal_name == '@') |
2346 | { | |
1579bae1 AM |
2347 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2348 | BSF_GLOBAL, 0); | |
54727719 | 2349 | if (include_jmp_stub) |
4b7f0676 | 2350 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); |
00479ba8 | 2351 | quick_symbol (abfd, "__imp_", exp->internal_name, "", id5, |
1579bae1 | 2352 | BSF_GLOBAL, 0); |
c9e38879 NC |
2353 | /* Fastcall applies only to functions, |
2354 | so no need for auto-import symbol. */ | |
2355 | } | |
2356 | else | |
2357 | { | |
4b7f0676 NC |
2358 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2359 | BSF_GLOBAL, 0); | |
54727719 | 2360 | if (include_jmp_stub) |
1579bae1 AM |
2361 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
2362 | BSF_GLOBAL, 0); | |
00479ba8 | 2363 | quick_symbol (abfd, "__imp_", U (""), exp->internal_name, id5, |
1579bae1 | 2364 | BSF_GLOBAL, 0); |
c9e38879 | 2365 | /* Symbol to reference ord/name of imported |
1579bae1 | 2366 | data symbol, used to implement auto-import. */ |
c9e38879 | 2367 | if (exp->flag_data) |
17f73277 | 2368 | quick_symbol (abfd, "__nm_", U (""), exp->internal_name, id6, |
1579bae1 | 2369 | BSF_GLOBAL,0); |
c9e38879 | 2370 | } |
870df5dc | 2371 | if (pe_dll_compat_implib) |
17f73277 | 2372 | quick_symbol (abfd, "___imp_", exp->internal_name, "", id5, |
1579bae1 | 2373 | BSF_GLOBAL, 0); |
252b5132 | 2374 | |
54727719 | 2375 | if (include_jmp_stub) |
775cabad | 2376 | { |
fd361982 | 2377 | bfd_set_section_size (tx, jmp_byte_count); |
1579bae1 | 2378 | td = xmalloc (jmp_byte_count); |
775cabad NC |
2379 | tx->contents = td; |
2380 | memcpy (td, jmp_bytes, jmp_byte_count); | |
2381 | ||
2382 | switch (pe_details->pe_arch) | |
2383 | { | |
2384 | case PE_ARCH_i386: | |
591a748a NC |
2385 | #ifdef pe_use_x86_64 |
2386 | quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2); | |
2387 | #else | |
17299ac7 NC |
2388 | /* Mark this object as SAFESEH compatible. */ |
2389 | quick_symbol (abfd, "", "@feat.00", "", bfd_abs_section_ptr, | |
2390 | BSF_LOCAL, 1); | |
6c19b93b | 2391 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); |
591a748a | 2392 | #endif |
775cabad NC |
2393 | break; |
2394 | case PE_ARCH_sh: | |
2395 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
2396 | break; | |
2397 | case PE_ARCH_mips: | |
2398 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
2399 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
2400 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
2401 | break; | |
53baae48 | 2402 | case PE_ARCH_arm: |
6c19b93b | 2403 | case PE_ARCH_arm_wince: |
53baae48 NC |
2404 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
2405 | break; | |
775cabad NC |
2406 | default: |
2407 | abort (); | |
2408 | } | |
2409 | save_relocs (tx); | |
2410 | } | |
54727719 | 2411 | else |
fd361982 | 2412 | bfd_set_section_size (tx, 0); |
252b5132 | 2413 | |
fd361982 | 2414 | bfd_set_section_size (id7, 4); |
1579bae1 | 2415 | d7 = xmalloc (4); |
252b5132 RH |
2416 | id7->contents = d7; |
2417 | memset (d7, 0, 4); | |
4b7f0676 | 2418 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
2419 | save_relocs (id7); |
2420 | ||
fd361982 | 2421 | bfd_set_section_size (id5, PE_IDATA5_SIZE); |
99ad8390 | 2422 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 2423 | id5->contents = d5; |
99ad8390 | 2424 | memset (d5, 0, PE_IDATA5_SIZE); |
775cabad | 2425 | |
252b5132 RH |
2426 | if (exp->flag_noname) |
2427 | { | |
2428 | d5[0] = exp->ordinal; | |
2429 | d5[1] = exp->ordinal >> 8; | |
99ad8390 | 2430 | d5[PE_IDATA5_SIZE - 1] = 0x80; |
252b5132 RH |
2431 | } |
2432 | else | |
2433 | { | |
2434 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2435 | save_relocs (id5); | |
2436 | } | |
2437 | ||
fd361982 | 2438 | bfd_set_section_size (id4, PE_IDATA4_SIZE); |
99ad8390 | 2439 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 2440 | id4->contents = d4; |
99ad8390 | 2441 | memset (d4, 0, PE_IDATA4_SIZE); |
775cabad | 2442 | |
252b5132 RH |
2443 | if (exp->flag_noname) |
2444 | { | |
c2a94a7a DD |
2445 | d4[0] = exp->ordinal; |
2446 | d4[1] = exp->ordinal >> 8; | |
99ad8390 | 2447 | d4[PE_IDATA4_SIZE - 1] = 0x80; |
252b5132 RH |
2448 | } |
2449 | else | |
2450 | { | |
2451 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2452 | save_relocs (id4); | |
2453 | } | |
2454 | ||
2455 | if (exp->flag_noname) | |
2456 | { | |
2457 | len = 0; | |
fd361982 | 2458 | bfd_set_section_size (id6, 0); |
252b5132 RH |
2459 | } |
2460 | else | |
2461 | { | |
4ee1d7e4 R |
2462 | int ord; |
2463 | ||
e916811a | 2464 | /* { short, asciz } */ |
7fcab871 KT |
2465 | if (exp->its_name) |
2466 | len = 2 + strlen (exp->its_name) + 1; | |
2467 | else | |
2468 | len = 2 + strlen (exp->name) + 1; | |
252b5132 RH |
2469 | if (len & 1) |
2470 | len++; | |
fd361982 | 2471 | bfd_set_section_size (id6, len); |
1579bae1 | 2472 | d6 = xmalloc (len); |
252b5132 RH |
2473 | id6->contents = d6; |
2474 | memset (d6, 0, len); | |
4ee1d7e4 R |
2475 | |
2476 | /* PR 20880: Use exp->hint as a backup, just in case exp->ordinal | |
2477 | contains an invalid value (-1). */ | |
2478 | ord = (exp->ordinal >= 0) ? exp->ordinal : exp->hint; | |
2479 | d6[0] = ord; | |
2480 | d6[1] = ord >> 8; | |
2481 | ||
7fcab871 KT |
2482 | if (exp->its_name) |
2483 | strcpy ((char*) d6 + 2, exp->its_name); | |
2484 | else | |
2485 | strcpy ((char *) d6 + 2, exp->name); | |
252b5132 RH |
2486 | } |
2487 | ||
2488 | bfd_set_symtab (abfd, symtab, symptr); | |
2489 | ||
54727719 NC |
2490 | if (include_jmp_stub) |
2491 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); | |
252b5132 | 2492 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
99ad8390 NC |
2493 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
2494 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
252b5132 RH |
2495 | if (!exp->flag_noname) |
2496 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
2497 | ||
2498 | bfd_make_readable (abfd); | |
2499 | return abfd; | |
2500 | } | |
2501 | ||
b044cda1 | 2502 | static bfd * |
1579bae1 | 2503 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2504 | { |
775cabad | 2505 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2506 | asection *id4; |
2507 | unsigned char *d4; | |
2508 | char *oname; | |
2509 | bfd *abfd; | |
2510 | ||
1579bae1 | 2511 | oname = xmalloc (20); |
b044cda1 CW |
2512 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2513 | tmp_seq++; | |
2514 | ||
2515 | abfd = bfd_create (oname, parent); | |
2516 | bfd_find_target (pe_details->object_target, abfd); | |
2517 | bfd_make_writable (abfd); | |
2518 | ||
2519 | bfd_set_format (abfd, bfd_object); | |
2520 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2521 | ||
2522 | symptr = 0; | |
1579bae1 | 2523 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 | 2524 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
17f73277 KT |
2525 | quick_symbol (abfd, "__nm_thnk_", import, "", id4, BSF_GLOBAL, 0); |
2526 | quick_symbol (abfd, "__nm_", import, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2527 | |
4e986257 | 2528 | /* We need space for the real thunk and for the null terminator. */ |
fd361982 | 2529 | bfd_set_section_size (id4, PE_IDATA4_SIZE * 2); |
4e986257 | 2530 | d4 = xmalloc (PE_IDATA4_SIZE * 2); |
b044cda1 | 2531 | id4->contents = d4; |
4e986257 | 2532 | memset (d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2533 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2534 | save_relocs (id4); | |
2535 | ||
2536 | bfd_set_symtab (abfd, symtab, symptr); | |
2537 | ||
4e986257 | 2538 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2539 | |
2540 | bfd_make_readable (abfd); | |
2541 | return abfd; | |
2542 | } | |
2543 | ||
317ff008 | 2544 | static const char * |
fbea1508 | 2545 | make_import_fixup_mark (arelent *rel, char *name) |
b044cda1 | 2546 | { |
775cabad | 2547 | /* We convert reloc to symbol, for later reference. */ |
fbea1508 | 2548 | static unsigned int counter; |
fc0a2244 | 2549 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2550 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2551 | struct bfd_link_hash_entry *bh; |
fbea1508 AM |
2552 | char *fixup_name, buf[26]; |
2553 | size_t prefix_len; | |
b044cda1 | 2554 | |
fbea1508 AM |
2555 | /* "name" buffer has space before the symbol name for prefixes. */ |
2556 | sprintf (buf, "__fu%d_", counter++); | |
2557 | prefix_len = strlen (buf); | |
2558 | fixup_name = name - prefix_len; | |
2559 | memcpy (fixup_name, buf, prefix_len); | |
b044cda1 | 2560 | |
fe213ce2 | 2561 | bh = NULL; |
b7a26f91 | 2562 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2563 | current_sec, /* sym->section, */ |
f38a2680 | 2564 | rel->address, NULL, true, false, &bh); |
fe213ce2 | 2565 | |
317ff008 | 2566 | return bh->root.string; |
b044cda1 CW |
2567 | } |
2568 | ||
53baae48 | 2569 | /* .section .idata$2 |
6c19b93b AM |
2570 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2571 | .long 0 | |
2572 | .long 0 | |
2573 | .rva __my_dll_iname (name of dll) | |
2574 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2575 | |
2576 | static bfd * | |
1579bae1 AM |
2577 | make_import_fixup_entry (const char *name, |
2578 | const char *fixup_name, | |
91d6fa6a | 2579 | const char *symname, |
1579bae1 | 2580 | bfd *parent) |
b044cda1 | 2581 | { |
53baae48 NC |
2582 | asection *id2; |
2583 | unsigned char *d2; | |
b044cda1 CW |
2584 | char *oname; |
2585 | bfd *abfd; | |
2586 | ||
1579bae1 | 2587 | oname = xmalloc (20); |
b044cda1 CW |
2588 | sprintf (oname, "fu%06d.o", tmp_seq); |
2589 | tmp_seq++; | |
2590 | ||
2591 | abfd = bfd_create (oname, parent); | |
2592 | bfd_find_target (pe_details->object_target, abfd); | |
2593 | bfd_make_writable (abfd); | |
2594 | ||
2595 | bfd_set_format (abfd, bfd_object); | |
2596 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2597 | ||
2598 | symptr = 0; | |
1579bae1 | 2599 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2600 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2601 | |
17f73277 | 2602 | quick_symbol (abfd, "__nm_thnk_", name, "", UNDSEC, BSF_GLOBAL, 0); |
91d6fa6a | 2603 | quick_symbol (abfd, U (""), symname, "_iname", UNDSEC, BSF_GLOBAL, 0); |
317ff008 | 2604 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); |
b044cda1 | 2605 | |
fd361982 | 2606 | bfd_set_section_size (id2, 20); |
53baae48 NC |
2607 | d2 = xmalloc (20); |
2608 | id2->contents = d2; | |
2609 | memset (d2, 0, 20); | |
b044cda1 CW |
2610 | |
2611 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2612 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2613 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2614 | save_relocs (id2); |
b044cda1 CW |
2615 | |
2616 | bfd_set_symtab (abfd, symtab, symptr); | |
2617 | ||
53baae48 | 2618 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2619 | |
2620 | bfd_make_readable (abfd); | |
2621 | return abfd; | |
2622 | } | |
2623 | ||
2fa9fc65 | 2624 | /* .section .rdata_runtime_pseudo_reloc |
6c19b93b AM |
2625 | .long addend |
2626 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2fa9fc65 NC |
2627 | |
2628 | static bfd * | |
1579bae1 AM |
2629 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2630 | const char *fixup_name, | |
6cb442d3 KT |
2631 | bfd_vma addend ATTRIBUTE_UNUSED, |
2632 | bfd_vma bitsize, | |
1579bae1 | 2633 | bfd *parent) |
2fa9fc65 NC |
2634 | { |
2635 | asection *rt_rel; | |
2636 | unsigned char *rt_rel_d; | |
2637 | char *oname; | |
2638 | bfd *abfd; | |
317ff008 EB |
2639 | bfd_size_type size; |
2640 | ||
1579bae1 | 2641 | oname = xmalloc (20); |
2fa9fc65 NC |
2642 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2643 | tmp_seq++; | |
2644 | ||
2645 | abfd = bfd_create (oname, parent); | |
2646 | bfd_find_target (pe_details->object_target, abfd); | |
2647 | bfd_make_writable (abfd); | |
2648 | ||
2649 | bfd_set_format (abfd, bfd_object); | |
2650 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2651 | ||
acac4c69 KT |
2652 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2653 | { | |
317ff008 EB |
2654 | if (runtime_pseudp_reloc_v2_init) |
2655 | size = 3 * sizeof (asymbol *); | |
2656 | else | |
2657 | size = 6 * sizeof (asymbol *); | |
acac4c69 KT |
2658 | } |
2659 | else | |
317ff008 EB |
2660 | size = 2 * sizeof (asymbol *); |
2661 | ||
2662 | symptr = 0; | |
2663 | symtab = xmalloc (size); | |
2664 | ||
2665 | rt_rel | |
2666 | = quick_section (abfd, ".rdata_runtime_pseudo_reloc", SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2667 | |
2668 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2669 | ||
6cb442d3 KT |
2670 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2671 | { | |
317ff008 EB |
2672 | size = 12; |
2673 | if (!runtime_pseudp_reloc_v2_init) | |
2674 | { | |
2675 | size += 12; | |
f38a2680 | 2676 | runtime_pseudp_reloc_v2_init = true; |
317ff008 EB |
2677 | } |
2678 | ||
17f73277 | 2679 | quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0); |
6cb442d3 | 2680 | |
fd361982 | 2681 | bfd_set_section_size (rt_rel, size); |
6cb442d3 KT |
2682 | rt_rel_d = xmalloc (size); |
2683 | rt_rel->contents = rt_rel_d; | |
2684 | memset (rt_rel_d, 0, size); | |
317ff008 EB |
2685 | quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1); |
2686 | quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2); | |
2687 | bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4)); | |
2688 | if (size != 12) | |
2689 | bfd_put_32 (abfd, 1, rt_rel_d + 8); | |
6cb442d3 KT |
2690 | save_relocs (rt_rel); |
2691 | ||
2692 | bfd_set_symtab (abfd, symtab, symptr); | |
2693 | ||
2694 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, size); | |
317ff008 | 2695 | } |
6cb442d3 | 2696 | else |
317ff008 | 2697 | { |
fd361982 | 2698 | bfd_set_section_size (rt_rel, 8); |
6cb442d3 KT |
2699 | rt_rel_d = xmalloc (8); |
2700 | rt_rel->contents = rt_rel_d; | |
2701 | memset (rt_rel_d, 0, 8); | |
2fa9fc65 | 2702 | |
6cb442d3 KT |
2703 | bfd_put_32 (abfd, addend, rt_rel_d); |
2704 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2fa9fc65 | 2705 | |
6cb442d3 | 2706 | save_relocs (rt_rel); |
2fa9fc65 | 2707 | |
6cb442d3 | 2708 | bfd_set_symtab (abfd, symtab, symptr); |
2fa9fc65 | 2709 | |
6cb442d3 KT |
2710 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); |
2711 | } | |
317ff008 | 2712 | |
2fa9fc65 NC |
2713 | bfd_make_readable (abfd); |
2714 | return abfd; | |
2715 | } | |
2716 | ||
2717 | /* .section .rdata | |
6c19b93b | 2718 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2719 | |
2720 | static bfd * | |
1579bae1 | 2721 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2722 | { |
2723 | asection *extern_rt_rel; | |
2724 | unsigned char *extern_rt_rel_d; | |
2725 | char *oname; | |
2726 | bfd *abfd; | |
2727 | ||
1579bae1 | 2728 | oname = xmalloc (20); |
2fa9fc65 NC |
2729 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2730 | tmp_seq++; | |
2731 | ||
2732 | abfd = bfd_create (oname, parent); | |
2733 | bfd_find_target (pe_details->object_target, abfd); | |
2734 | bfd_make_writable (abfd); | |
2735 | ||
2736 | bfd_set_format (abfd, bfd_object); | |
2737 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2738 | ||
2739 | symptr = 0; | |
1579bae1 | 2740 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2741 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2742 | ||
00479ba8 | 2743 | quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC, |
1579bae1 | 2744 | BSF_NO_FLAGS, 0); |
2fa9fc65 | 2745 | |
fd361982 | 2746 | bfd_set_section_size (extern_rt_rel, PE_IDATA5_SIZE); |
8d5c4b7b | 2747 | extern_rt_rel_d = xcalloc (1, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2748 | extern_rt_rel->contents = extern_rt_rel_d; |
2749 | ||
2750 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2751 | save_relocs (extern_rt_rel); | |
2752 | ||
2753 | bfd_set_symtab (abfd, symtab, symptr); | |
2754 | ||
9382254d | 2755 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2756 | |
2757 | bfd_make_readable (abfd); | |
2758 | return abfd; | |
2759 | } | |
2760 | ||
b044cda1 | 2761 | void |
317ff008 EB |
2762 | pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend, char *name, |
2763 | const char *symname) | |
b044cda1 | 2764 | { |
317ff008 | 2765 | const char *fixup_name = make_import_fixup_mark (rel, name); |
2fa9fc65 | 2766 | bfd *b; |
b044cda1 | 2767 | |
317ff008 EB |
2768 | /* This is the original implementation of the auto-import feature, which |
2769 | primarily relied on the OS loader to patch things up with some help | |
2770 | from the pseudo-relocator to overcome the main limitation. See the | |
2771 | comment at the beginning of the file for an overview of the feature. */ | |
2772 | if (link_info.pei386_runtime_pseudo_reloc != 2) | |
b044cda1 | 2773 | { |
317ff008 EB |
2774 | struct bfd_link_hash_entry *name_thunk_sym; |
2775 | /* name buffer is allocated with space at beginning for prefixes. */ | |
2776 | char *thname = name - (sizeof "__nm_thnk_" - 1); | |
2777 | memcpy (thname, "__nm_thnk_", sizeof "__nm_thnk_" - 1); | |
2778 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, thname, 0, 0, 1); | |
b044cda1 | 2779 | |
317ff008 | 2780 | if (!(name_thunk_sym && name_thunk_sym->type == bfd_link_hash_defined)) |
6c19b93b | 2781 | { |
317ff008 | 2782 | b = make_singleton_name_thunk (name, link_info.output_bfd); |
607b4833 | 2783 | add_bfd_to_link (b, bfd_get_filename (b), &link_info); |
317ff008 EB |
2784 | |
2785 | /* If we ever use autoimport, we have to cast text section writable. */ | |
f38a2680 | 2786 | config.text_read_only = false; |
6c19b93b AM |
2787 | link_info.output_bfd->flags &= ~WP_TEXT; |
2788 | } | |
317ff008 EB |
2789 | |
2790 | if (addend == 0 || link_info.pei386_runtime_pseudo_reloc == 1) | |
6c19b93b | 2791 | { |
317ff008 EB |
2792 | b = make_import_fixup_entry (name, fixup_name, symname, |
2793 | link_info.output_bfd); | |
607b4833 | 2794 | add_bfd_to_link (b, bfd_get_filename (b), &link_info); |
9382254d | 2795 | } |
b044cda1 CW |
2796 | } |
2797 | ||
317ff008 EB |
2798 | /* In the original implementation, the pseudo-relocator was only used when |
2799 | the addend was not null. In the new implementation, the OS loader is | |
2800 | completely bypassed and the pseudo-relocator does the entire work. */ | |
2801 | if ((addend != 0 && link_info.pei386_runtime_pseudo_reloc == 1) | |
6c19b93b AM |
2802 | || link_info.pei386_runtime_pseudo_reloc == 2) |
2803 | { | |
2804 | if (pe_dll_extra_pe_debug) | |
2805 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2806 | fixup_name, (int) addend); | |
6cb442d3 | 2807 | |
6c19b93b AM |
2808 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, rel->howto->bitsize, |
2809 | link_info.output_bfd); | |
607b4833 | 2810 | add_bfd_to_link (b, bfd_get_filename (b), &link_info); |
6cb442d3 | 2811 | |
317ff008 | 2812 | if (runtime_pseudo_relocs_created++ == 0) |
6c19b93b AM |
2813 | { |
2814 | b = pe_create_runtime_relocator_reference (link_info.output_bfd); | |
607b4833 | 2815 | add_bfd_to_link (b, bfd_get_filename (b), &link_info); |
6c19b93b | 2816 | } |
6c19b93b | 2817 | } |
317ff008 | 2818 | |
6c19b93b | 2819 | else if (addend != 0) |
df5f2391 | 2820 | 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 | 2821 | s->owner, s, rel->address, (*rel->sym_ptr_ptr)->name); |
b044cda1 CW |
2822 | } |
2823 | ||
252b5132 | 2824 | void |
e1c37eb5 | 2825 | pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info) |
252b5132 RH |
2826 | { |
2827 | int i; | |
2828 | bfd *ar_head; | |
2829 | bfd *ar_tail; | |
2830 | bfd *outarch; | |
e1c37eb5 | 2831 | bfd *ibfd; |
252b5132 RH |
2832 | bfd *head = 0; |
2833 | ||
5aaace27 | 2834 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2835 | dll_symname = xstrdup (dll_filename); |
d643799d | 2836 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2837 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2838 | dll_symname[i] = '_'; |
2839 | ||
bb14f524 | 2840 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2841 | |
2842 | outarch = bfd_openw (impfilename, 0); | |
2843 | ||
2844 | if (!outarch) | |
2845 | { | |
2846 | /* xgettext:c-format */ | |
df5f2391 | 2847 | einfo (_("%X%P: can't open .lib file: %s\n"), impfilename); |
252b5132 RH |
2848 | return; |
2849 | } | |
2850 | ||
cd6f1cf3 NC |
2851 | if (verbose) |
2852 | /* xgettext:c-format */ | |
2853 | info_msg (_("Creating library file: %s\n"), impfilename); | |
9382254d | 2854 | |
252b5132 RH |
2855 | bfd_set_format (outarch, bfd_archive); |
2856 | outarch->has_armap = 1; | |
2857 | ||
5cc18311 | 2858 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2859 | ar_head = make_head (outarch); |
252b5132 | 2860 | |
e1c37eb5 | 2861 | /* Iterate the input BFDs, looking for exclude-modules-for-implib. */ |
c72f2fb2 | 2862 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next) |
e1c37eb5 DK |
2863 | { |
2864 | /* Iterate the exclude list. */ | |
2865 | struct exclude_list_struct *ex; | |
2866 | char found; | |
2867 | for (ex = excludes, found = 0; ex && !found; ex = ex->next) | |
2868 | { | |
2869 | if (ex->type != EXCLUDEFORIMPLIB) | |
2870 | continue; | |
607b4833 | 2871 | found = (filename_cmp (ex->string, bfd_get_filename (ibfd)) == 0); |
e1c37eb5 DK |
2872 | } |
2873 | /* If it matched, we must open a fresh BFD for it (the original | |
6c19b93b AM |
2874 | input BFD is still needed for the DLL's final link) and add |
2875 | it into the archive member chain. */ | |
e1c37eb5 DK |
2876 | if (found) |
2877 | { | |
9382254d | 2878 | bfd *newbfd = bfd_openr (ibfd->my_archive |
607b4833 AM |
2879 | ? bfd_get_filename (ibfd->my_archive) |
2880 | : bfd_get_filename (ibfd), NULL); | |
e1c37eb5 DK |
2881 | if (!newbfd) |
2882 | { | |
607b4833 | 2883 | einfo (_("%X%P: bfd_openr %s: %E\n"), bfd_get_filename (ibfd)); |
e1c37eb5 DK |
2884 | return; |
2885 | } | |
2886 | if (ibfd->my_archive) | |
2887 | { | |
2888 | /* Must now iterate through archive until we find the | |
2889 | required member. A minor shame that we'll open the | |
2890 | archive once per member that we require from it, and | |
2891 | leak those archive bfds rather than reuse them. */ | |
2892 | bfd *arbfd = newbfd; | |
2893 | if (!bfd_check_format_matches (arbfd, bfd_archive, NULL)) | |
2894 | { | |
df5f2391 | 2895 | einfo (_("%X%P: %s(%s): can't find member in non-archive file"), |
607b4833 AM |
2896 | bfd_get_filename (ibfd->my_archive), |
2897 | bfd_get_filename (ibfd)); | |
e1c37eb5 DK |
2898 | return; |
2899 | } | |
2900 | newbfd = NULL; | |
2901 | while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0) | |
2902 | { | |
607b4833 AM |
2903 | if (filename_cmp (bfd_get_filename (newbfd), |
2904 | bfd_get_filename (ibfd)) == 0) | |
e1c37eb5 DK |
2905 | break; |
2906 | } | |
2907 | if (!newbfd) | |
2908 | { | |
df5f2391 | 2909 | einfo (_("%X%P: %s(%s): can't find member in archive"), |
607b4833 AM |
2910 | bfd_get_filename (ibfd->my_archive), |
2911 | bfd_get_filename (ibfd)); | |
e1c37eb5 DK |
2912 | return; |
2913 | } | |
2914 | } | |
2915 | newbfd->archive_next = head; | |
2916 | head = newbfd; | |
2917 | } | |
2918 | } | |
2919 | ||
d643799d | 2920 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2921 | { |
86b1cc60 | 2922 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2923 | char *internal = def->exports[i].internal_name; |
2924 | bfd *n; | |
775cabad | 2925 | |
9382254d | 2926 | /* Don't add PRIVATE entries to import lib. */ |
ee31fbd0 NC |
2927 | if (pe_def_file->exports[i].flag_private) |
2928 | continue; | |
41f46ed9 | 2929 | |
252b5132 | 2930 | def->exports[i].internal_name = def->exports[i].name; |
41f46ed9 SKS |
2931 | |
2932 | /* PR 19803: If a symbol has been discard due to garbage | |
2933 | collection then do not create any exports for it. */ | |
2934 | { | |
2935 | struct coff_link_hash_entry *h; | |
2936 | ||
2937 | h = coff_link_hash_lookup (coff_hash_table (info), internal, | |
f38a2680 | 2938 | false, false, false); |
41f46ed9 SKS |
2939 | if (h != NULL |
2940 | /* If the symbol is hidden and undefined then it | |
2941 | has been swept up by garbage collection. */ | |
2942 | && h->symbol_class == C_HIDDEN | |
2943 | && h->root.u.def.section == bfd_und_section_ptr) | |
2944 | continue; | |
2945 | ||
2946 | /* If necessary, check with an underscore prefix as well. */ | |
2947 | if (pe_details->underscored && internal[0] != '@') | |
2948 | { | |
2949 | char *name; | |
2950 | ||
2951 | name = xmalloc (strlen (internal) + 2); | |
2952 | sprintf (name, "_%s", internal); | |
2953 | ||
2954 | h = coff_link_hash_lookup (coff_hash_table (info), name, | |
f38a2680 | 2955 | false, false, false); |
41f46ed9 SKS |
2956 | free (name); |
2957 | ||
2958 | if (h != NULL | |
2959 | /* If the symbol is hidden and undefined then it | |
2960 | has been swept up by garbage collection. */ | |
2961 | && h->symbol_class == C_HIDDEN | |
2962 | && h->root.u.def.section == bfd_und_section_ptr) | |
2963 | continue; | |
2964 | } | |
2965 | } | |
2966 | ||
54727719 NC |
2967 | n = make_one (def->exports + i, outarch, |
2968 | ! (def->exports + i)->flag_data); | |
cc481421 | 2969 | n->archive_next = head; |
252b5132 RH |
2970 | head = n; |
2971 | def->exports[i].internal_name = internal; | |
2972 | } | |
2973 | ||
c6c37250 DD |
2974 | ar_tail = make_tail (outarch); |
2975 | ||
2976 | if (ar_head == NULL || ar_tail == NULL) | |
2977 | return; | |
2978 | ||
86b1cc60 | 2979 | /* Now stick them all into the archive. */ |
cc481421 AM |
2980 | ar_head->archive_next = head; |
2981 | ar_tail->archive_next = ar_head; | |
252b5132 RH |
2982 | head = ar_tail; |
2983 | ||
2984 | if (! bfd_set_archive_head (outarch, head)) | |
df5f2391 | 2985 | einfo ("%X%P: bfd_set_archive_head: %E\n"); |
5cc18311 | 2986 | |
252b5132 | 2987 | if (! bfd_close (outarch)) |
df5f2391 | 2988 | einfo ("%X%P: bfd_close %s: %E\n", impfilename); |
252b5132 RH |
2989 | |
2990 | while (head != NULL) | |
2991 | { | |
cc481421 | 2992 | bfd *n = head->archive_next; |
252b5132 RH |
2993 | bfd_close (head); |
2994 | head = n; | |
2995 | } | |
2996 | } | |
2997 | ||
aeb1f0e8 KT |
2998 | static int undef_count = 0; |
2999 | ||
3000 | struct key_value | |
3001 | { | |
3002 | char *key; | |
3003 | const char *oname; | |
3004 | }; | |
3005 | ||
d66ac08f | 3006 | static struct key_value *udef_table; |
aeb1f0e8 KT |
3007 | |
3008 | static int undef_sort_cmp (const void *l1, const void *r1) | |
3009 | { | |
3010 | const struct key_value *l = l1; | |
3011 | const struct key_value *r = r1; | |
3012 | ||
3013 | return strcmp (l->key, r->key); | |
3014 | } | |
3015 | ||
3016 | static struct bfd_link_hash_entry * | |
3017 | pe_find_cdecl_alias_match (struct bfd_link_info *linfo, char *name) | |
3018 | { | |
3019 | struct bfd_link_hash_entry *h = NULL; | |
3020 | struct key_value *kv; | |
3021 | struct key_value key; | |
e1fa0163 | 3022 | char *at, *lname = xmalloc (strlen (name) + 3); |
e4492aa0 | 3023 | |
aeb1f0e8 KT |
3024 | strcpy (lname, name); |
3025 | ||
3026 | at = strchr (lname + (lname[0] == '@'), '@'); | |
3027 | if (at) | |
3028 | at[1] = 0; | |
3029 | ||
3030 | key.key = lname; | |
3031 | kv = bsearch (&key, udef_table, undef_count, sizeof (struct key_value), | |
3032 | undef_sort_cmp); | |
3033 | ||
3034 | if (kv) | |
3035 | { | |
f38a2680 | 3036 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false); |
aeb1f0e8 | 3037 | if (h->type == bfd_link_hash_undefined) |
6c19b93b | 3038 | goto return_h; |
aeb1f0e8 | 3039 | } |
e1fa0163 | 3040 | |
aeb1f0e8 | 3041 | if (lname[0] == '?') |
e1fa0163 NC |
3042 | goto return_NULL; |
3043 | ||
aeb1f0e8 KT |
3044 | if (at || lname[0] == '@') |
3045 | { | |
3046 | if (lname[0] == '@') | |
6c19b93b | 3047 | { |
aeb1f0e8 KT |
3048 | if (pe_details->underscored) |
3049 | lname[0] = '_'; | |
3050 | else | |
ee42883c NC |
3051 | /* Use memmove rather than strcpy as that |
3052 | can handle overlapping buffers. */ | |
3053 | memmove (lname, lname + 1, strlen (lname)); | |
aeb1f0e8 KT |
3054 | key.key = lname; |
3055 | kv = bsearch (&key, udef_table, undef_count, | |
3056 | sizeof (struct key_value), undef_sort_cmp); | |
3057 | if (kv) | |
3058 | { | |
f38a2680 | 3059 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false); |
aeb1f0e8 | 3060 | if (h->type == bfd_link_hash_undefined) |
e1fa0163 | 3061 | goto return_h; |
aeb1f0e8 KT |
3062 | } |
3063 | } | |
3064 | if (at) | |
6c19b93b | 3065 | *strchr (lname, '@') = 0; |
aeb1f0e8 KT |
3066 | key.key = lname; |
3067 | kv = bsearch (&key, udef_table, undef_count, | |
3068 | sizeof (struct key_value), undef_sort_cmp); | |
3069 | if (kv) | |
3070 | { | |
f38a2680 | 3071 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false); |
aeb1f0e8 | 3072 | if (h->type == bfd_link_hash_undefined) |
e1fa0163 | 3073 | goto return_h; |
aeb1f0e8 | 3074 | } |
e1fa0163 | 3075 | goto return_NULL; |
aeb1f0e8 KT |
3076 | } |
3077 | ||
3078 | strcat (lname, "@"); | |
3079 | key.key = lname; | |
3080 | kv = bsearch (&key, udef_table, undef_count, | |
3081 | sizeof (struct key_value), undef_sort_cmp); | |
3082 | ||
3083 | if (kv) | |
3084 | { | |
f38a2680 | 3085 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false); |
aeb1f0e8 | 3086 | if (h->type == bfd_link_hash_undefined) |
e1fa0163 | 3087 | goto return_h; |
aeb1f0e8 KT |
3088 | } |
3089 | ||
3090 | if (lname[0] == '_' && pe_details->underscored) | |
3091 | lname[0] = '@'; | |
3092 | else | |
3093 | { | |
3094 | memmove (lname + 1, lname, strlen (lname) + 1); | |
3095 | lname[0] = '@'; | |
3096 | } | |
3097 | key.key = lname; | |
3098 | ||
3099 | kv = bsearch (&key, udef_table, undef_count, | |
3100 | sizeof (struct key_value), undef_sort_cmp); | |
3101 | ||
3102 | if (kv) | |
3103 | { | |
f38a2680 | 3104 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, false, false, false); |
aeb1f0e8 | 3105 | if (h->type == bfd_link_hash_undefined) |
6c19b93b | 3106 | goto return_h; |
aeb1f0e8 | 3107 | } |
e4492aa0 | 3108 | |
e1fa0163 NC |
3109 | return_NULL: |
3110 | h = NULL; | |
3111 | return_h: | |
3112 | free (lname); | |
3113 | return h; | |
aeb1f0e8 | 3114 | } |
8a9eab9b | 3115 | |
f38a2680 | 3116 | static bool |
aeb1f0e8 | 3117 | pe_undef_count (struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED, |
6c19b93b | 3118 | void *inf ATTRIBUTE_UNUSED) |
8a9eab9b | 3119 | { |
aeb1f0e8 KT |
3120 | if (h->type == bfd_link_hash_undefined) |
3121 | undef_count++; | |
f38a2680 | 3122 | return true; |
aeb1f0e8 KT |
3123 | } |
3124 | ||
f38a2680 | 3125 | static bool |
aeb1f0e8 KT |
3126 | pe_undef_fill (struct bfd_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) |
3127 | { | |
3128 | if (h->type == bfd_link_hash_undefined) | |
8a9eab9b | 3129 | { |
aeb1f0e8 KT |
3130 | char *at; |
3131 | ||
3132 | udef_table[undef_count].key = xstrdup (h->root.string); | |
3133 | at = strchr (udef_table[undef_count].key | |
3134 | + (udef_table[undef_count].key[0] == '@'), '@'); | |
3135 | if (at) | |
6c19b93b | 3136 | at[1] = 0; |
aeb1f0e8 KT |
3137 | udef_table[undef_count].oname = h->root.string; |
3138 | undef_count++; | |
8a9eab9b | 3139 | } |
f38a2680 | 3140 | return true; |
8a9eab9b KT |
3141 | } |
3142 | ||
aeb1f0e8 KT |
3143 | static void |
3144 | pe_create_undef_table (void) | |
8a9eab9b | 3145 | { |
aeb1f0e8 KT |
3146 | undef_count = 0; |
3147 | ||
3148 | /* count undefined symbols */ | |
3149 | ||
3150 | bfd_link_hash_traverse (link_info.hash, pe_undef_count, ""); | |
3151 | ||
3152 | /* create and fill the corresponding table */ | |
3153 | udef_table = xmalloc (undef_count * sizeof (struct key_value)); | |
3154 | ||
3155 | undef_count = 0; | |
3156 | bfd_link_hash_traverse (link_info.hash, pe_undef_fill, ""); | |
3157 | ||
3158 | /* sort items */ | |
3159 | qsort (udef_table, undef_count, sizeof (struct key_value), undef_sort_cmp); | |
8a9eab9b KT |
3160 | } |
3161 | ||
252b5132 | 3162 | static void |
91d6fa6a | 3163 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *linfo) |
252b5132 RH |
3164 | { |
3165 | lang_input_statement_type *fake_file; | |
775cabad | 3166 | |
252b5132 RH |
3167 | fake_file = lang_add_input_file (name, |
3168 | lang_input_file_is_fake_enum, | |
3169 | NULL); | |
3170 | fake_file->the_bfd = abfd; | |
3171 | ldlang_add_file (fake_file); | |
775cabad | 3172 | |
91d6fa6a | 3173 | if (!bfd_link_add_symbols (abfd, linfo)) |
df5f2391 | 3174 | einfo (_("%X%P: add symbols %s: %E\n"), name); |
252b5132 RH |
3175 | } |
3176 | ||
3177 | void | |
91d6fa6a | 3178 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *linfo) |
252b5132 | 3179 | { |
6e230cc2 | 3180 | int i, j; |
252b5132 | 3181 | def_file_module *module; |
6e230cc2 | 3182 | def_file_import *imp; |
775cabad | 3183 | |
d643799d | 3184 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
3185 | |
3186 | if (!pe_def_file) | |
3187 | return; | |
3188 | ||
6e230cc2 KT |
3189 | imp = pe_def_file->imports; |
3190 | ||
aeb1f0e8 KT |
3191 | pe_create_undef_table (); |
3192 | ||
252b5132 RH |
3193 | for (module = pe_def_file->modules; module; module = module->next) |
3194 | { | |
6e230cc2 KT |
3195 | int do_this_dll = 0; |
3196 | ||
3197 | for (i = 0; i < pe_def_file->num_imports && imp[i].module != module; i++) | |
3198 | ; | |
3199 | if (i >= pe_def_file->num_imports) | |
6c19b93b | 3200 | continue; |
252b5132 RH |
3201 | |
3202 | dll_filename = module->name; | |
3203 | dll_symname = xstrdup (module->name); | |
6e230cc2 KT |
3204 | for (j = 0; dll_symname[j]; j++) |
3205 | if (!ISALNUM (dll_symname[j])) | |
3206 | dll_symname[j] = '_'; | |
3207 | ||
3208 | for (; i < pe_def_file->num_imports && imp[i].module == module; i++) | |
3209 | { | |
3210 | def_file_export exp; | |
3211 | struct bfd_link_hash_entry *blhe; | |
3212 | int lead_at = (*imp[i].internal_name == '@'); | |
3213 | /* See if we need this import. */ | |
3214 | size_t len = strlen (imp[i].internal_name); | |
3215 | char *name = xmalloc (len + 2 + 6); | |
f38a2680 AM |
3216 | bool include_jmp_stub = false; |
3217 | bool is_cdecl = false; | |
3218 | bool is_undef = false; | |
aeb1f0e8 | 3219 | |
6e230cc2 | 3220 | if (!lead_at && strchr (imp[i].internal_name, '@') == NULL) |
f38a2680 | 3221 | is_cdecl = true; |
6e230cc2 KT |
3222 | |
3223 | if (lead_at) | |
3224 | sprintf (name, "%s", imp[i].internal_name); | |
3225 | else | |
3226 | sprintf (name, "%s%s",U (""), imp[i].internal_name); | |
252b5132 | 3227 | |
6e230cc2 | 3228 | blhe = bfd_link_hash_lookup (linfo->hash, name, |
f38a2680 | 3229 | false, false, false); |
252b5132 | 3230 | |
6e230cc2 KT |
3231 | /* Include the jump stub for <sym> only if the <sym> |
3232 | is undefined. */ | |
3233 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) | |
3234 | { | |
3235 | if (lead_at) | |
3236 | sprintf (name, "%s%s", "__imp_", imp[i].internal_name); | |
3237 | else | |
3238 | sprintf (name, "%s%s%s", "__imp_", U (""), | |
3239 | imp[i].internal_name); | |
3240 | ||
3241 | blhe = bfd_link_hash_lookup (linfo->hash, name, | |
f38a2680 | 3242 | false, false, false); |
aeb1f0e8 | 3243 | if (blhe) |
6c19b93b | 3244 | is_undef = (blhe->type == bfd_link_hash_undefined); |
6e230cc2 KT |
3245 | } |
3246 | else | |
aeb1f0e8 | 3247 | { |
f38a2680 | 3248 | include_jmp_stub = true; |
aeb1f0e8 KT |
3249 | is_undef = (blhe->type == bfd_link_hash_undefined); |
3250 | } | |
6e230cc2 | 3251 | |
aeb1f0e8 | 3252 | if (is_cdecl && (!blhe || (blhe && blhe->type != bfd_link_hash_undefined))) |
6e230cc2 KT |
3253 | { |
3254 | sprintf (name, "%s%s",U (""), imp[i].internal_name); | |
aeb1f0e8 | 3255 | blhe = pe_find_cdecl_alias_match (linfo, name); |
f38a2680 | 3256 | include_jmp_stub = true; |
aeb1f0e8 | 3257 | if (blhe) |
6c19b93b | 3258 | is_undef = (blhe->type == bfd_link_hash_undefined); |
6e230cc2 | 3259 | } |
54727719 | 3260 | |
6e230cc2 KT |
3261 | free (name); |
3262 | ||
aeb1f0e8 | 3263 | if (is_undef) |
6e230cc2 KT |
3264 | { |
3265 | bfd *one; | |
3266 | /* We do. */ | |
3267 | if (!do_this_dll) | |
3268 | { | |
3269 | bfd *ar_head = make_head (output_bfd); | |
607b4833 | 3270 | add_bfd_to_link (ar_head, bfd_get_filename (ar_head), linfo); |
6e230cc2 KT |
3271 | do_this_dll = 1; |
3272 | } | |
3273 | exp.internal_name = imp[i].internal_name; | |
3274 | exp.name = imp[i].name; | |
3275 | exp.its_name = imp[i].its_name; | |
3276 | exp.ordinal = imp[i].ordinal; | |
3277 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
3278 | exp.flag_private = 0; | |
3279 | exp.flag_constant = 0; | |
3280 | exp.flag_data = imp[i].data; | |
3281 | exp.flag_noname = exp.name ? 0 : 1; | |
3282 | one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub); | |
607b4833 | 3283 | add_bfd_to_link (one, bfd_get_filename (one), linfo); |
6e230cc2 KT |
3284 | } |
3285 | } | |
252b5132 RH |
3286 | if (do_this_dll) |
3287 | { | |
3288 | bfd *ar_tail = make_tail (output_bfd); | |
607b4833 | 3289 | add_bfd_to_link (ar_tail, bfd_get_filename (ar_tail), linfo); |
252b5132 RH |
3290 | } |
3291 | ||
3292 | free (dll_symname); | |
3293 | } | |
aeb1f0e8 KT |
3294 | |
3295 | while (undef_count) | |
3296 | { | |
3297 | --undef_count; | |
3298 | free (udef_table[undef_count].key); | |
3299 | } | |
3300 | free (udef_table); | |
252b5132 RH |
3301 | } |
3302 | ||
775cabad | 3303 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
3304 | IMPORTS directives in the def file. Return TRUE if the file was |
3305 | handled, FALSE if not. */ | |
252b5132 RH |
3306 | |
3307 | static unsigned int | |
1579bae1 | 3308 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
3309 | { |
3310 | unsigned char b[2]; | |
775cabad | 3311 | |
db09f25b AM |
3312 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
3313 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 3314 | return b[0] + (b[1] << 8); |
252b5132 RH |
3315 | } |
3316 | ||
3317 | static unsigned int | |
1579bae1 | 3318 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
3319 | { |
3320 | unsigned char b[4]; | |
775cabad | 3321 | |
db09f25b AM |
3322 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
3323 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
599956cf | 3324 | return b[0] + (b[1] << 8) + (b[2] << 16) + ((unsigned) b[3] << 24); |
252b5132 RH |
3325 | } |
3326 | ||
252b5132 | 3327 | static unsigned int |
1579bae1 | 3328 | pe_as32 (void *ptr) |
252b5132 RH |
3329 | { |
3330 | unsigned char *b = ptr; | |
775cabad | 3331 | |
599956cf | 3332 | return b[0] + (b[1] << 8) + (b[2] << 16) + ((unsigned) b[3] << 24); |
252b5132 RH |
3333 | } |
3334 | ||
f38a2680 | 3335 | bool |
1579bae1 | 3336 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
3337 | { |
3338 | bfd *dll; | |
6ca0987a KT |
3339 | bfd_vma pe_header_offset, opthdr_ofs, num_entries, i; |
3340 | bfd_vma export_rva, export_size, nsections, secptr, expptr; | |
3341 | bfd_vma exp_funcbase; | |
47639182 AM |
3342 | unsigned char *expdata; |
3343 | char *erva; | |
c7e2358a | 3344 | bfd_vma name_rvas, nexp; |
91d6fa6a | 3345 | const char *dllname; |
939ba9d0 NC |
3346 | /* Initialization with start > end guarantees that is_data |
3347 | will not be set by mistake, and avoids compiler warning. */ | |
6ca0987a KT |
3348 | bfd_vma data_start = 1; |
3349 | bfd_vma data_end = 0; | |
3350 | bfd_vma rdata_start = 1; | |
3351 | bfd_vma rdata_end = 0; | |
3352 | bfd_vma bss_start = 1; | |
3353 | bfd_vma bss_end = 0; | |
9d8e8f44 | 3354 | int from; |
252b5132 RH |
3355 | |
3356 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 3357 | the middle of the .rdata section. */ |
c6c37250 | 3358 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
3359 | if (!dll) |
3360 | { | |
df5f2391 | 3361 | einfo (_("%X%P: open %s: %E\n"), filename); |
f38a2680 | 3362 | return false; |
252b5132 | 3363 | } |
775cabad | 3364 | |
f37b21b4 RM |
3365 | track_dependency_files (filename); |
3366 | ||
86b1cc60 | 3367 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
3368 | if (!bfd_check_format (dll, bfd_object)) |
3369 | { | |
df5f2391 | 3370 | einfo (_("%X%P: %s: this doesn't appear to be a DLL\n"), filename); |
f38a2680 | 3371 | return false; |
252b5132 RH |
3372 | } |
3373 | ||
d0069cab | 3374 | /* Get pe_header, optional header and numbers of directory entries. */ |
252b5132 RH |
3375 | pe_header_offset = pe_get32 (dll, 0x3c); |
3376 | opthdr_ofs = pe_header_offset + 4 + 20; | |
99ad8390 NC |
3377 | #ifdef pe_use_x86_64 |
3378 | num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */ | |
3379 | #else | |
252b5132 | 3380 | num_entries = pe_get32 (dll, opthdr_ofs + 92); |
99ad8390 | 3381 | #endif |
775cabad | 3382 | |
d0069cab TG |
3383 | /* No import or export directory entry. */ |
3384 | if (num_entries < 1) | |
f38a2680 | 3385 | return false; |
775cabad | 3386 | |
99ad8390 NC |
3387 | #ifdef pe_use_x86_64 |
3388 | export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4); | |
3389 | export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4); | |
3390 | #else | |
252b5132 RH |
3391 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
3392 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
99ad8390 | 3393 | #endif |
9382254d | 3394 | |
d0069cab TG |
3395 | /* No export table - nothing to export. */ |
3396 | if (export_size == 0) | |
f38a2680 | 3397 | return false; |
d0069cab | 3398 | |
252b5132 RH |
3399 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); |
3400 | secptr = (pe_header_offset + 4 + 20 + | |
3401 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
3402 | expptr = 0; | |
775cabad | 3403 | |
1579bae1 | 3404 | /* Get the rva and size of the export section. */ |
d643799d | 3405 | for (i = 0; i < nsections; i++) |
252b5132 RH |
3406 | { |
3407 | char sname[8]; | |
6ca0987a KT |
3408 | bfd_vma secptr1 = secptr + 40 * i; |
3409 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3410 | bfd_vma vsize = pe_get32 (dll, secptr1 + 16); | |
3411 | bfd_vma fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 3412 | |
db09f25b AM |
3413 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
3414 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 3415 | |
d643799d | 3416 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
3417 | { |
3418 | expptr = fptr + (export_rva - vaddr); | |
3419 | if (export_rva + export_size > vaddr + vsize) | |
3420 | export_size = vsize - (export_rva - vaddr); | |
3421 | break; | |
3422 | } | |
3423 | } | |
3424 | ||
939ba9d0 | 3425 | /* Scan sections and store the base and size of the |
1579bae1 | 3426 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
3427 | for (i = 0; i < nsections; i++) |
3428 | { | |
6ca0987a KT |
3429 | bfd_vma secptr1 = secptr + 40 * i; |
3430 | bfd_vma vsize = pe_get32 (dll, secptr1 + 8); | |
3431 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3432 | bfd_vma flags = pe_get32 (dll, secptr1 + 36); | |
939ba9d0 NC |
3433 | char sec_name[9]; |
3434 | ||
3435 | sec_name[8] = '\0'; | |
3436 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
3437 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
3438 | ||
3439 | if (strcmp(sec_name,".data") == 0) | |
3440 | { | |
3441 | data_start = vaddr; | |
3442 | data_end = vaddr + vsize; | |
3443 | ||
661a32f7 DS |
3444 | if (pe_dll_extra_pe_debug) |
3445 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3446 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3447 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
661a32f7 DS |
3448 | } |
3449 | else if (strcmp(sec_name,".rdata") == 0) | |
3450 | { | |
3451 | rdata_start = vaddr; | |
3452 | rdata_end = vaddr + vsize; | |
3453 | ||
939ba9d0 NC |
3454 | if (pe_dll_extra_pe_debug) |
3455 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3456 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3457 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
1579bae1 | 3458 | } |
939ba9d0 NC |
3459 | else if (strcmp (sec_name,".bss") == 0) |
3460 | { | |
3461 | bss_start = vaddr; | |
3462 | bss_end = vaddr + vsize; | |
3463 | ||
3464 | if (pe_dll_extra_pe_debug) | |
3465 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3466 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3467 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
939ba9d0 NC |
3468 | } |
3469 | } | |
3470 | ||
1579bae1 | 3471 | expdata = xmalloc (export_size); |
db09f25b AM |
3472 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
3473 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 3474 | erva = (char *) expdata - export_rva; |
252b5132 RH |
3475 | |
3476 | if (pe_def_file == 0) | |
d643799d | 3477 | pe_def_file = def_file_empty (); |
252b5132 | 3478 | |
d643799d KH |
3479 | nexp = pe_as32 (expdata + 24); |
3480 | name_rvas = pe_as32 (expdata + 32); | |
939ba9d0 | 3481 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 3482 | |
939ba9d0 NC |
3483 | /* Use internal dll name instead of filename |
3484 | to enable symbolic dll linking. */ | |
91d6fa6a | 3485 | dllname = erva + pe_as32 (expdata + 12); |
939ba9d0 | 3486 | |
a35bc64f NC |
3487 | /* Check to see if the dll has already been added to |
3488 | the definition list and if so return without error. | |
3489 | This avoids multiple symbol definitions. */ | |
91d6fa6a | 3490 | if (def_get_module (pe_def_file, dllname)) |
a35bc64f NC |
3491 | { |
3492 | if (pe_dll_extra_pe_debug) | |
91d6fa6a | 3493 | printf ("%s is already loaded\n", dllname); |
f38a2680 | 3494 | return true; |
a35bc64f NC |
3495 | } |
3496 | ||
9d8e8f44 EB |
3497 | /* This is an optimized version of the insertion loop, which avoids lots of |
3498 | calls to realloc and memmove from def_file_add_import. */ | |
3499 | if ((from = def_file_add_import_from (pe_def_file, nexp, | |
3500 | erva + pe_as32 (erva + name_rvas), | |
3501 | dllname, 0, NULL, NULL)) >= 0) | |
3502 | { | |
3503 | for (i = 0; i < nexp; i++) | |
3504 | { | |
3505 | /* Pointer to the names vector. */ | |
3506 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); | |
3507 | def_file_import *imp; | |
3508 | /* Pointer to the function address vector. */ | |
3509 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); | |
3510 | /* is_data is true if the address is in the data, rdata or bss | |
3511 | segment. */ | |
3512 | const int is_data = | |
3513 | (func_rva >= data_start && func_rva < data_end) | |
3514 | || (func_rva >= rdata_start && func_rva < rdata_end) | |
3515 | || (func_rva >= bss_start && func_rva < bss_end); | |
3516 | ||
3517 | imp = def_file_add_import_at (pe_def_file, from + i, erva + name_rva, | |
3518 | dllname, i, NULL, NULL); | |
3519 | /* Mark symbol type. */ | |
3520 | imp->data = is_data; | |
3521 | ||
3522 | if (pe_dll_extra_pe_debug) | |
3523 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
3524 | __FUNCTION__, dllname, erva + name_rva, | |
3525 | (unsigned long) func_rva, is_data ? "(data)" : ""); | |
3526 | } | |
3527 | ||
f38a2680 | 3528 | return true; |
9d8e8f44 EB |
3529 | } |
3530 | ||
939ba9d0 | 3531 | /* Iterate through the list of symbols. */ |
d643799d | 3532 | for (i = 0; i < nexp; i++) |
252b5132 | 3533 | { |
939ba9d0 | 3534 | /* Pointer to the names vector. */ |
6ca0987a | 3535 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 3536 | def_file_import *imp; |
1579bae1 | 3537 | /* Pointer to the function address vector. */ |
6ca0987a | 3538 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
939ba9d0 NC |
3539 | int is_data = 0; |
3540 | ||
3541 | /* Skip unwanted symbols, which are | |
3542 | exported in buggy auto-import releases. */ | |
08dedd66 | 3543 | if (! startswith (erva + name_rva, "__nm_")) |
6c19b93b | 3544 | { |
db17156e | 3545 | int is_dup = 0; |
6c19b93b | 3546 | /* is_data is true if the address is in the data, rdata or bss |
661a32f7 | 3547 | segment. */ |
6c19b93b | 3548 | is_data = |
939ba9d0 | 3549 | (func_rva >= data_start && func_rva < data_end) |
661a32f7 | 3550 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
3551 | || (func_rva >= bss_start && func_rva < bss_end); |
3552 | ||
3553 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
6e230cc2 | 3554 | dllname, i, NULL, NULL, &is_dup); |
6c19b93b AM |
3555 | /* Mark symbol type. */ |
3556 | if (!is_dup) | |
3557 | imp->data = is_data; | |
1579bae1 | 3558 | |
6c19b93b | 3559 | if (pe_dll_extra_pe_debug) |
939ba9d0 | 3560 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", |
91d6fa6a | 3561 | __FUNCTION__, dllname, erva + name_rva, |
6ca0987a | 3562 | (unsigned long) func_rva, is_data ? "(data)" : ""); |
6c19b93b | 3563 | } |
252b5132 RH |
3564 | } |
3565 | ||
f38a2680 | 3566 | return true; |
252b5132 RH |
3567 | } |
3568 | ||
88183869 DK |
3569 | void |
3570 | pe_output_file_set_long_section_names (bfd *abfd) | |
3571 | { | |
3572 | if (pe_use_coff_long_section_names < 0) | |
3573 | return; | |
3574 | if (!bfd_coff_set_long_section_names (abfd, pe_use_coff_long_section_names)) | |
df5f2391 | 3575 | einfo (_("%X%P: error: can't use long section names on this arch\n")); |
88183869 DK |
3576 | } |
3577 | ||
775cabad NC |
3578 | /* These are the main functions, called from the emulation. The first |
3579 | is called after the bfds are read, so we can guess at how much space | |
3580 | we need. The second is called after everything is placed, so we | |
3581 | can put the right values in place. */ | |
252b5132 RH |
3582 | |
3583 | void | |
1579bae1 | 3584 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3585 | { |
c6c37250 | 3586 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3587 | pe_output_file_set_long_section_names (abfd); |
c1711530 | 3588 | process_def_file_and_drectve (abfd, info); |
252b5132 | 3589 | |
0e1862bb | 3590 | if (pe_def_file->num_exports == 0 && !bfd_link_pic (info)) |
dc9bd8c9 HD |
3591 | { |
3592 | if (pe_dll_enable_reloc_section) | |
3593 | { | |
3594 | build_filler_bfd (0); | |
3595 | pe_output_file_set_long_section_names (filler_bfd); | |
3596 | } | |
3597 | return; | |
3598 | } | |
2b817be1 | 3599 | |
252b5132 | 3600 | generate_edata (abfd, info); |
c6c37250 | 3601 | build_filler_bfd (1); |
88183869 | 3602 | pe_output_file_set_long_section_names (filler_bfd); |
c6c37250 DD |
3603 | } |
3604 | ||
3605 | void | |
1579bae1 | 3606 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
3607 | { |
3608 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3609 | pe_output_file_set_long_section_names (abfd); |
c6c37250 | 3610 | build_filler_bfd (0); |
88183869 | 3611 | pe_output_file_set_long_section_names (filler_bfd); |
252b5132 RH |
3612 | } |
3613 | ||
3614 | void | |
1579bae1 | 3615 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3616 | { |
dc9bd8c9 | 3617 | pe_exe_fill_sections (abfd, info); |
252b5132 | 3618 | |
dc9bd8c9 | 3619 | if (edata_s) |
252b5132 | 3620 | { |
dc9bd8c9 HD |
3621 | fill_edata (abfd, info); |
3622 | edata_s->contents = edata_d; | |
252b5132 RH |
3623 | } |
3624 | ||
0e1862bb | 3625 | if (bfd_link_dll (info)) |
2b817be1 | 3626 | pe_data (abfd)->dll = 1; |
252b5132 | 3627 | } |
c6c37250 DD |
3628 | |
3629 | void | |
1579bae1 | 3630 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
3631 | { |
3632 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3633 | pe_output_file_set_long_section_names (abfd); |
c6c37250 DD |
3634 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3635 | ||
3636 | generate_reloc (abfd, info); | |
3637 | if (reloc_sz > 0) | |
3638 | { | |
fd361982 | 3639 | bfd_set_section_size (reloc_s, reloc_sz); |
c6c37250 DD |
3640 | |
3641 | /* Resize the sections. */ | |
38975f9e | 3642 | lang_reset_memory_regions (); |
f38a2680 | 3643 | lang_size_sections (NULL, true); |
c6c37250 DD |
3644 | |
3645 | /* Redo special stuff. */ | |
3646 | ldemul_after_allocation (); | |
3647 | ||
3648 | /* Do the assignments again. */ | |
2f65ac72 | 3649 | lang_do_assignments (lang_final_phase_enum); |
c6c37250 | 3650 | } |
514b4e19 JD |
3651 | if (reloc_s) |
3652 | reloc_s->contents = reloc_d; | |
c6c37250 | 3653 | } |
ff2bdb9c | 3654 | |
f38a2680 | 3655 | bool |
ff2bdb9c CF |
3656 | pe_bfd_is_dll (bfd *abfd) |
3657 | { | |
3658 | return (bfd_get_format (abfd) == bfd_object | |
6c19b93b AM |
3659 | && obj_pe (abfd) |
3660 | && pe_data (abfd)->dll); | |
ff2bdb9c | 3661 | } |