Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
f13a99db | 2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
17299ac7 | 3 | 2008, 2009, 2010 Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by DJ Delorie <dj@cygnus.com> |
5 | ||
f96b4a7b | 6 | This file is part of the GNU Binutils. |
252b5132 | 7 | |
f96b4a7b | 8 | This program is free software; you can redistribute it and/or modify |
252b5132 | 9 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
10 | the Free Software Foundation; either version 3 of the License, or |
11 | (at your option) any later version. | |
252b5132 | 12 | |
f96b4a7b | 13 | This program is distributed in the hope that it will be useful, |
252b5132 RH |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
f96b4a7b NC |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | MA 02110-1301, USA. */ | |
252b5132 | 22 | |
252b5132 | 23 | #include "sysdep.h" |
3db64b00 | 24 | #include "bfd.h" |
252b5132 RH |
25 | #include "bfdlink.h" |
26 | #include "libiberty.h" | |
3882b010 | 27 | #include "safe-ctype.h" |
252b5132 RH |
28 | |
29 | #include <time.h> | |
252b5132 RH |
30 | |
31 | #include "ld.h" | |
32 | #include "ldexp.h" | |
33 | #include "ldlang.h" | |
34 | #include "ldwrite.h" | |
35 | #include "ldmisc.h" | |
df2a7313 | 36 | #include <ldgram.h> |
252b5132 | 37 | #include "ldmain.h" |
b71e2778 | 38 | #include "ldfile.h" |
252b5132 RH |
39 | #include "ldemul.h" |
40 | #include "coff/internal.h" | |
41 | #include "../bfd/libcoff.h" | |
42 | #include "deffile.h" | |
99ad8390 NC |
43 | |
44 | #ifdef pe_use_x86_64 | |
45 | ||
46 | #define PE_IDATA4_SIZE 8 | |
47 | #define PE_IDATA5_SIZE 8 | |
48 | #include "pep-dll.h" | |
49 | #undef AOUTSZ | |
50 | #define AOUTSZ PEPAOUTSZ | |
51 | #define PEAOUTHDR PEPAOUTHDR | |
52 | ||
53 | #else | |
54 | ||
1069dd8d | 55 | #include "pe-dll.h" |
252b5132 | 56 | |
99ad8390 NC |
57 | #endif |
58 | ||
59 | #ifndef PE_IDATA4_SIZE | |
60 | #define PE_IDATA4_SIZE 4 | |
61 | #endif | |
62 | ||
63 | #ifndef PE_IDATA5_SIZE | |
64 | #define PE_IDATA5_SIZE 4 | |
65 | #endif | |
66 | ||
775cabad NC |
67 | /* This file turns a regular Windows PE image into a DLL. Because of |
68 | the complexity of this operation, it has been broken down into a | |
69 | number of separate modules which are all called by the main function | |
70 | at the end of this file. This function is not re-entrant and is | |
71 | normally only called once, so static variables are used to reduce | |
72 | the number of parameters and return values required. | |
b7a26f91 | 73 | |
99ad8390 | 74 | See also: ld/emultempl/pe.em and ld/emultempl/pep.em. */ |
775cabad NC |
75 | |
76 | /* Auto-import feature by Paul Sokolovsky | |
77 | ||
78 | Quick facts: | |
79 | ||
80 | 1. With this feature on, DLL clients can import variables from DLL | |
81 | without any concern from their side (for example, without any source | |
82 | code modifications). | |
83 | ||
84 | 2. This is done completely in bounds of the PE specification (to be fair, | |
396a2467 | 85 | there's a place where it pokes nose out of, but in practice it works). |
775cabad NC |
86 | So, resulting module can be used with any other PE compiler/linker. |
87 | ||
88 | 3. Auto-import is fully compatible with standard import method and they | |
89 | can be mixed together. | |
90 | ||
91 | 4. Overheads: space: 8 bytes per imported symbol, plus 20 for each | |
92 | reference to it; load time: negligible; virtual/physical memory: should be | |
93 | less than effect of DLL relocation, and I sincerely hope it doesn't affect | |
94 | DLL sharability (too much). | |
95 | ||
96 | Idea | |
97 | ||
98 | The obvious and only way to get rid of dllimport insanity is to make client | |
99 | access variable directly in the DLL, bypassing extra dereference. I.e., | |
396a2467 | 100 | whenever client contains something like |
775cabad NC |
101 | |
102 | mov dll_var,%eax, | |
103 | ||
104 | address of dll_var in the command should be relocated to point into loaded | |
105 | DLL. The aim is to make OS loader do so, and than make ld help with that. | |
106 | Import section of PE made following way: there's a vector of structures | |
107 | each describing imports from particular DLL. Each such structure points | |
396a2467 | 108 | to two other parallel vectors: one holding imported names, and one which |
775cabad NC |
109 | will hold address of corresponding imported name. So, the solution is |
110 | de-vectorize these structures, making import locations be sparse and | |
111 | pointing directly into code. Before continuing, it is worth a note that, | |
112 | while authors strives to make PE act ELF-like, there're some other people | |
113 | make ELF act PE-like: elfvector, ;-) . | |
114 | ||
115 | Implementation | |
116 | ||
117 | For each reference of data symbol to be imported from DLL (to set of which | |
118 | belong symbols with name <sym>, if __imp_<sym> is found in implib), the | |
119 | import fixup entry is generated. That entry is of type | |
53baae48 | 120 | IMAGE_IMPORT_DESCRIPTOR and stored in .idata$2 subsection. Each |
775cabad NC |
121 | fixup entry contains pointer to symbol's address within .text section |
122 | (marked with __fuN_<sym> symbol, where N is integer), pointer to DLL name | |
123 | (so, DLL name is referenced by multiple entries), and pointer to symbol | |
124 | name thunk. Symbol name thunk is singleton vector (__nm_th_<symbol>) | |
125 | pointing to IMAGE_IMPORT_BY_NAME structure (__nm_<symbol>) directly | |
00479ba8 | 126 | containing imported name. Here comes that "on the edge" problem mentioned |
775cabad NC |
127 | above: PE specification rambles that name vector (OriginalFirstThunk) |
128 | should run in parallel with addresses vector (FirstThunk), i.e. that they | |
129 | should have same number of elements and terminated with zero. We violate | |
396a2467 | 130 | this, since FirstThunk points directly into machine code. But in practice, |
775cabad NC |
131 | OS loader implemented the sane way: it goes thru OriginalFirstThunk and |
132 | puts addresses to FirstThunk, not something else. It once again should be | |
133 | noted that dll and symbol name structures are reused across fixup entries | |
134 | and should be there anyway to support standard import stuff, so sustained | |
135 | overhead is 20 bytes per reference. Other question is whether having several | |
136 | IMAGE_IMPORT_DESCRIPTORS for the same DLL is possible. Answer is yes, it is | |
137 | done even by native compiler/linker (libth32's functions are in fact reside | |
138 | in windows9x kernel32.dll, so if you use it, you have two | |
139 | IMAGE_IMPORT_DESCRIPTORS for kernel32.dll). Yet other question is whether | |
140 | referencing the same PE structures several times is valid. The answer is why | |
396a2467 | 141 | not, prohibiting that (detecting violation) would require more work on |
775cabad NC |
142 | behalf of loader than not doing it. |
143 | ||
99ad8390 | 144 | See also: ld/emultempl/pe.em and ld/emultempl/pep.em. */ |
b044cda1 | 145 | |
1579bae1 | 146 | static void add_bfd_to_link (bfd *, const char *, struct bfd_link_info *); |
b044cda1 | 147 | |
775cabad | 148 | /* For emultempl/pe.em. */ |
252b5132 | 149 | |
775cabad | 150 | def_file * pe_def_file = 0; |
252b5132 | 151 | int pe_dll_export_everything = 0; |
2927aaca | 152 | int pe_dll_exclude_all_symbols = 0; |
252b5132 RH |
153 | int pe_dll_do_default_excludes = 1; |
154 | int pe_dll_kill_ats = 0; | |
155 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
156 | int pe_dll_warn_dup_exports = 0; |
157 | int pe_dll_compat_implib = 0; | |
b044cda1 | 158 | int pe_dll_extra_pe_debug = 0; |
ce11ba6c | 159 | int pe_use_nul_prefixed_import_tables = 0; |
88183869 | 160 | int pe_use_coff_long_section_names = -1; |
522f09cd | 161 | int pe_leading_underscore = -1; |
252b5132 | 162 | |
775cabad | 163 | /* Static variables and types. */ |
252b5132 RH |
164 | |
165 | static bfd_vma image_base; | |
252b5132 | 166 | static bfd *filler_bfd; |
198beae2 | 167 | static struct bfd_section *edata_s, *reloc_s; |
252b5132 | 168 | static unsigned char *edata_d, *reloc_d; |
1069dd8d | 169 | static size_t edata_sz, reloc_sz; |
2fa9fc65 | 170 | static int runtime_pseudo_relocs_created = 0; |
6cb442d3 | 171 | static int runtime_pseudp_reloc_v2_init = 0; |
252b5132 | 172 | |
775cabad | 173 | typedef struct |
5b8273bf | 174 | { |
e916811a | 175 | const char *name; |
5b8273bf NC |
176 | int len; |
177 | } | |
178 | autofilter_entry_type; | |
775cabad NC |
179 | |
180 | typedef struct | |
5b8273bf | 181 | { |
e916811a CF |
182 | const char *target_name; |
183 | const char *object_target; | |
5b8273bf NC |
184 | unsigned int imagebase_reloc; |
185 | int pe_arch; | |
186 | int bfd_arch; | |
187 | bfd_boolean underscored; | |
1b610c93 | 188 | const autofilter_entry_type* autofilter_symbollist; |
5b8273bf NC |
189 | } |
190 | pe_details_type; | |
191 | ||
e916811a | 192 | static const autofilter_entry_type autofilter_symbollist_generic[] = |
5b8273bf | 193 | { |
b92216aa | 194 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 195 | /* Entry point symbols. */ |
0112cd26 NC |
196 | { STRING_COMMA_LEN ("DllMain") }, |
197 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
198 | { STRING_COMMA_LEN ("_DllMainCRTStartup") }, | |
5b8273bf | 199 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
200 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
201 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
db86b2dc | 202 | { NULL, 0 } |
5b8273bf NC |
203 | }; |
204 | ||
e916811a | 205 | static const autofilter_entry_type autofilter_symbollist_i386[] = |
5b8273bf | 206 | { |
b92216aa | 207 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 208 | /* Entry point symbols, and entry hooks. */ |
0112cd26 | 209 | { STRING_COMMA_LEN ("cygwin_crt0") }, |
880383ca NC |
210 | #ifdef pe_use_x86_64 |
211 | { STRING_COMMA_LEN ("DllMain") }, | |
212 | { STRING_COMMA_LEN ("DllEntryPoint") }, | |
213 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
214 | { STRING_COMMA_LEN ("_cygwin_dll_entry") }, | |
215 | { STRING_COMMA_LEN ("_cygwin_crt0_common") }, | |
216 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry") }, | |
217 | #else | |
0112cd26 NC |
218 | { STRING_COMMA_LEN ("DllMain@12") }, |
219 | { STRING_COMMA_LEN ("DllEntryPoint@0") }, | |
220 | { STRING_COMMA_LEN ("DllMainCRTStartup@12") }, | |
221 | { STRING_COMMA_LEN ("_cygwin_dll_entry@12") }, | |
222 | { STRING_COMMA_LEN ("_cygwin_crt0_common@8") }, | |
223 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry@12") }, | |
224 | { STRING_COMMA_LEN ("cygwin_attach_dll") }, | |
1b610c93 | 225 | #endif |
0112cd26 NC |
226 | { STRING_COMMA_LEN ("cygwin_premain0") }, |
227 | { STRING_COMMA_LEN ("cygwin_premain1") }, | |
228 | { STRING_COMMA_LEN ("cygwin_premain2") }, | |
229 | { STRING_COMMA_LEN ("cygwin_premain3") }, | |
5b8273bf | 230 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
231 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
232 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
5b8273bf | 233 | /* Global vars that should not be exported. */ |
0112cd26 NC |
234 | { STRING_COMMA_LEN ("impure_ptr") }, |
235 | { STRING_COMMA_LEN ("_impure_ptr") }, | |
236 | { STRING_COMMA_LEN ("_fmode") }, | |
237 | { STRING_COMMA_LEN ("environ") }, | |
db86b2dc | 238 | { NULL, 0 } |
5b8273bf | 239 | }; |
b044cda1 | 240 | |
5b8273bf NC |
241 | #define PE_ARCH_i386 1 |
242 | #define PE_ARCH_sh 2 | |
243 | #define PE_ARCH_mips 3 | |
244 | #define PE_ARCH_arm 4 | |
775cabad | 245 | #define PE_ARCH_arm_epoc 5 |
7148cc28 | 246 | #define PE_ARCH_arm_wince 6 |
c6c37250 | 247 | |
522f09cd KT |
248 | /* Don't make it constant as underscore mode gets possibly overriden |
249 | by target or -(no-)leading-underscore option. */ | |
250 | static pe_details_type pe_detail_list[] = | |
775cabad | 251 | { |
c6c37250 | 252 | { |
99ad8390 NC |
253 | #ifdef pe_use_x86_64 |
254 | "pei-x86-64", | |
255 | "pe-x86-64", | |
256 | 3 /* R_IMAGEBASE */, | |
257 | #else | |
c6c37250 DD |
258 | "pei-i386", |
259 | "pe-i386", | |
260 | 7 /* R_IMAGEBASE */, | |
99ad8390 | 261 | #endif |
c6c37250 DD |
262 | PE_ARCH_i386, |
263 | bfd_arch_i386, | |
d74720d2 KT |
264 | #ifdef pe_use_x86_64 |
265 | FALSE, | |
266 | #else | |
5b8273bf | 267 | TRUE, |
d74720d2 | 268 | #endif |
5b8273bf | 269 | autofilter_symbollist_i386 |
c6c37250 | 270 | }, |
344a211f NC |
271 | { |
272 | "pei-shl", | |
273 | "pe-shl", | |
274 | 16 /* R_SH_IMAGEBASE */, | |
275 | PE_ARCH_sh, | |
276 | bfd_arch_sh, | |
5b8273bf NC |
277 | TRUE, |
278 | autofilter_symbollist_generic | |
344a211f NC |
279 | }, |
280 | { | |
281 | "pei-mips", | |
282 | "pe-mips", | |
283 | 34 /* MIPS_R_RVA */, | |
284 | PE_ARCH_mips, | |
285 | bfd_arch_mips, | |
5b8273bf NC |
286 | FALSE, |
287 | autofilter_symbollist_generic | |
344a211f NC |
288 | }, |
289 | { | |
290 | "pei-arm-little", | |
291 | "pe-arm-little", | |
292 | 11 /* ARM_RVA32 */, | |
293 | PE_ARCH_arm, | |
294 | bfd_arch_arm, | |
5b8273bf NC |
295 | TRUE, |
296 | autofilter_symbollist_generic | |
344a211f | 297 | }, |
775cabad NC |
298 | { |
299 | "epoc-pei-arm-little", | |
300 | "epoc-pe-arm-little", | |
301 | 11 /* ARM_RVA32 */, | |
302 | PE_ARCH_arm_epoc, | |
303 | bfd_arch_arm, | |
5b8273bf NC |
304 | FALSE, |
305 | autofilter_symbollist_generic | |
775cabad | 306 | }, |
7148cc28 NC |
307 | { |
308 | "pei-arm-wince-little", | |
309 | "pe-arm-wince-little", | |
310 | 2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */ | |
311 | PE_ARCH_arm_wince, | |
312 | bfd_arch_arm, | |
313 | FALSE, | |
314 | autofilter_symbollist_generic | |
315 | }, | |
5b8273bf | 316 | { NULL, NULL, 0, 0, 0, FALSE, NULL } |
c6c37250 DD |
317 | }; |
318 | ||
e916811a | 319 | static const pe_details_type *pe_details; |
c6c37250 | 320 | |
775cabad | 321 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
e916811a | 322 | static const autofilter_entry_type autofilter_liblist[] = |
775cabad | 323 | { |
0112cd26 NC |
324 | { STRING_COMMA_LEN ("libcegcc") }, |
325 | { STRING_COMMA_LEN ("libcygwin") }, | |
326 | { STRING_COMMA_LEN ("libgcc") }, | |
81b07b16 | 327 | { STRING_COMMA_LEN ("libgcc_s") }, |
0112cd26 NC |
328 | { STRING_COMMA_LEN ("libstdc++") }, |
329 | { STRING_COMMA_LEN ("libmingw32") }, | |
330 | { STRING_COMMA_LEN ("libmingwex") }, | |
331 | { STRING_COMMA_LEN ("libg2c") }, | |
332 | { STRING_COMMA_LEN ("libsupc++") }, | |
333 | { STRING_COMMA_LEN ("libobjc") }, | |
334 | { STRING_COMMA_LEN ("libgcj") }, | |
db86b2dc | 335 | { NULL, 0 } |
b044cda1 | 336 | }; |
775cabad | 337 | |
81b07b16 DK |
338 | /* Regardless of the suffix issue mentioned above, we must ensure that |
339 | we do not falsely match on a leading substring, such as when libtool | |
340 | builds libstdc++ as a DLL using libsupc++convenience.a as an intermediate. | |
341 | This routine ensures that the leading part of the name matches and that | |
342 | it is followed by only an optional version suffix and a file extension, | |
343 | returning zero if so or -1 if not. */ | |
344 | static int libnamencmp (const char *libname, const autofilter_entry_type *afptr) | |
345 | { | |
346 | if (strncmp (libname, afptr->name, afptr->len)) | |
347 | return -1; | |
348 | ||
349 | libname += afptr->len; | |
350 | ||
351 | /* Be liberal in interpreting what counts as a version suffix; we | |
352 | accept anything that has a dash to separate it from the name and | |
353 | begins with a digit. */ | |
354 | if (libname[0] == '-') | |
355 | { | |
356 | if (!ISDIGIT (*++libname)) | |
357 | return -1; | |
358 | /* Ensure the filename has an extension. */ | |
359 | while (*++libname != '.') | |
360 | if (!*libname) | |
361 | return -1; | |
362 | } | |
363 | else if (libname[0] != '.') | |
364 | return -1; | |
365 | ||
366 | return 0; | |
367 | } | |
368 | ||
e916811a | 369 | static const autofilter_entry_type autofilter_objlist[] = |
775cabad | 370 | { |
0112cd26 NC |
371 | { STRING_COMMA_LEN ("crt0.o") }, |
372 | { STRING_COMMA_LEN ("crt1.o") }, | |
373 | { STRING_COMMA_LEN ("crt2.o") }, | |
374 | { STRING_COMMA_LEN ("dllcrt1.o") }, | |
375 | { STRING_COMMA_LEN ("dllcrt2.o") }, | |
376 | { STRING_COMMA_LEN ("gcrt0.o") }, | |
377 | { STRING_COMMA_LEN ("gcrt1.o") }, | |
378 | { STRING_COMMA_LEN ("gcrt2.o") }, | |
379 | { STRING_COMMA_LEN ("crtbegin.o") }, | |
380 | { STRING_COMMA_LEN ("crtend.o") }, | |
db86b2dc | 381 | { NULL, 0 } |
b044cda1 | 382 | }; |
775cabad | 383 | |
e916811a | 384 | static const autofilter_entry_type autofilter_symbolprefixlist[] = |
775cabad | 385 | { |
00479ba8 NC |
386 | /* _imp_ is treated specially, as it is always underscored. */ |
387 | /* { STRING_COMMA_LEN ("_imp_") }, */ | |
388 | /* Don't export some c++ symbols. */ | |
0112cd26 | 389 | { STRING_COMMA_LEN ("__rtti_") }, |
00479ba8 | 390 | { STRING_COMMA_LEN ("__builtin_") }, |
39cebe23 | 391 | /* Don't re-export auto-imported symbols. */ |
17f73277 | 392 | { STRING_COMMA_LEN ("__nm_") }, |
775cabad | 393 | /* Don't export symbols specifying internal DLL layout. */ |
0112cd26 | 394 | { STRING_COMMA_LEN ("_head_") }, |
b92216aa DS |
395 | { STRING_COMMA_LEN ("_IMPORT_DESCRIPTOR_") }, |
396 | /* Don't export section labels or artificial symbols | |
397 | (eg ".weak.foo". */ | |
398 | { STRING_COMMA_LEN (".") }, | |
db86b2dc | 399 | { NULL, 0 } |
b044cda1 | 400 | }; |
775cabad | 401 | |
e916811a | 402 | static const autofilter_entry_type autofilter_symbolsuffixlist[] = |
775cabad | 403 | { |
0112cd26 | 404 | { STRING_COMMA_LEN ("_iname") }, |
b92216aa | 405 | { STRING_COMMA_LEN ("_NULL_THUNK_DATA") }, |
db86b2dc | 406 | { NULL, 0 } |
b044cda1 CW |
407 | }; |
408 | ||
c6c37250 DD |
409 | #define U(str) (pe_details->underscored ? "_" str : str) |
410 | ||
411 | void | |
1579bae1 | 412 | pe_dll_id_target (const char *target) |
c6c37250 DD |
413 | { |
414 | int i; | |
775cabad | 415 | |
d643799d | 416 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
417 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
418 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 419 | { |
522f09cd KT |
420 | int u = pe_leading_underscore; /* Underscoring mode. -1 for use default. */ |
421 | if (u == -1) | |
422 | bfd_get_target_info (target, NULL, NULL, &u, NULL); | |
d74720d2 KT |
423 | if (u == -1) |
424 | abort (); | |
425 | pe_detail_list[i].underscored = (u != 0 ? TRUE : FALSE); | |
d643799d | 426 | pe_details = pe_detail_list + i; |
d74720d2 | 427 | pe_leading_underscore = (u != 0 ? 1 : 0); |
c6c37250 DD |
428 | return; |
429 | } | |
430 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
431 | exit (1); | |
432 | } | |
433 | ||
b7a26f91 | 434 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 435 | them out by pages. */ |
252b5132 | 436 | |
775cabad NC |
437 | typedef struct |
438 | { | |
439 | bfd_vma vma; | |
440 | char type; | |
441 | short extra; | |
442 | } | |
443 | reloc_data_type; | |
c6c37250 | 444 | |
252b5132 | 445 | static int |
1579bae1 | 446 | reloc_sort (const void *va, const void *vb) |
252b5132 | 447 | { |
1579bae1 AM |
448 | bfd_vma a = ((const reloc_data_type *) va)->vma; |
449 | bfd_vma b = ((const reloc_data_type *) vb)->vma; | |
775cabad | 450 | |
c6c37250 | 451 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
452 | } |
453 | ||
454 | static int | |
1579bae1 | 455 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 456 | { |
1579bae1 AM |
457 | const def_file_export *a = va; |
458 | const def_file_export *b = vb; | |
7fcab871 KT |
459 | char *an = a->name; |
460 | char *bn = b->name; | |
461 | if (a->its_name) | |
462 | an = a->its_name; | |
463 | if (b->its_name) | |
464 | bn = b->its_name; | |
465 | ||
466 | return strcmp (an, bn); | |
252b5132 RH |
467 | } |
468 | ||
775cabad | 469 | /* Read and process the .DEF file. */ |
252b5132 RH |
470 | |
471 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
472 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 473 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
474 | |
475 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 476 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
477 | static int export_table_size; |
478 | static int count_exported; | |
479 | static int count_exported_byname; | |
480 | static int count_with_ordinals; | |
481 | static const char *dll_name; | |
482 | static int min_ordinal, max_ordinal; | |
483 | static int *exported_symbols; | |
484 | ||
775cabad NC |
485 | typedef struct exclude_list_struct |
486 | { | |
487 | char *string; | |
488 | struct exclude_list_struct *next; | |
e1c37eb5 | 489 | exclude_type type; |
775cabad NC |
490 | } |
491 | exclude_list_struct; | |
86b1cc60 | 492 | |
252b5132 RH |
493 | static struct exclude_list_struct *excludes = 0; |
494 | ||
495 | void | |
e1c37eb5 | 496 | pe_dll_add_excludes (const char *new_excludes, const exclude_type type) |
252b5132 RH |
497 | { |
498 | char *local_copy; | |
499 | char *exclude_string; | |
500 | ||
501 | local_copy = xstrdup (new_excludes); | |
502 | ||
503 | exclude_string = strtok (local_copy, ",:"); | |
504 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
505 | { | |
506 | struct exclude_list_struct *new_exclude; | |
507 | ||
1579bae1 AM |
508 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
509 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 510 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 511 | new_exclude->type = type; |
252b5132 RH |
512 | new_exclude->next = excludes; |
513 | excludes = new_exclude; | |
514 | } | |
515 | ||
516 | free (local_copy); | |
517 | } | |
518 | ||
00479ba8 NC |
519 | static bfd_boolean |
520 | is_import (const char* n) | |
521 | { | |
e916811a | 522 | return (CONST_STRNEQ (n, "__imp_")); |
00479ba8 | 523 | } |
70b0be79 | 524 | |
775cabad NC |
525 | /* abfd is a bfd containing n (or NULL) |
526 | It can be used for contextual checks. */ | |
527 | ||
252b5132 | 528 | static int |
1579bae1 | 529 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 RH |
530 | { |
531 | int i; | |
532 | struct exclude_list_struct *ex; | |
e916811a | 533 | const autofilter_entry_type *afptr; |
70b0be79 CF |
534 | const char * libname = 0; |
535 | if (abfd && abfd->my_archive) | |
536 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 537 | |
252b5132 RH |
538 | for (i = 0; i < d->num_exports; i++) |
539 | if (strcmp (d->exports[i].name, n) == 0) | |
540 | return 0; | |
775cabad | 541 | |
252b5132 RH |
542 | if (pe_dll_do_default_excludes) |
543 | { | |
663dd378 | 544 | const char * p; |
775cabad NC |
545 | int len; |
546 | ||
b044cda1 | 547 | if (pe_dll_extra_pe_debug) |
775cabad NC |
548 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
549 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
550 | |
551 | /* First of all, make context checks: | |
1579bae1 | 552 | Don't export anything from standard libs. */ |
658957db | 553 | if (libname) |
b044cda1 CW |
554 | { |
555 | afptr = autofilter_liblist; | |
775cabad | 556 | |
b044cda1 CW |
557 | while (afptr->name) |
558 | { | |
81b07b16 | 559 | if (libnamencmp (libname, afptr) == 0 ) |
b044cda1 CW |
560 | return 0; |
561 | afptr++; | |
562 | } | |
563 | } | |
564 | ||
775cabad | 565 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 566 | |
59d28a94 | 567 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 568 | { |
b7a26f91 KH |
569 | afptr = autofilter_objlist; |
570 | while (afptr->name) | |
59d28a94 | 571 | { |
b7a26f91 KH |
572 | if (strcmp (p, afptr->name) == 0) |
573 | return 0; | |
59d28a94 | 574 | afptr++; |
663dd378 | 575 | } |
775cabad | 576 | } |
b044cda1 CW |
577 | |
578 | /* Don't try to blindly exclude all symbols | |
579 | that begin with '__'; this was tried and | |
5b8273bf NC |
580 | it is too restrictive. Instead we have |
581 | a target specific list to use: */ | |
1b610c93 | 582 | afptr = pe_details->autofilter_symbollist; |
99ad8390 | 583 | |
b044cda1 CW |
584 | while (afptr->name) |
585 | { | |
586 | if (strcmp (n, afptr->name) == 0) | |
587 | return 0; | |
775cabad | 588 | |
b7a26f91 | 589 | afptr++; |
b044cda1 CW |
590 | } |
591 | ||
775cabad | 592 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
593 | afptr = autofilter_symbolprefixlist; |
594 | while (afptr->name) | |
595 | { | |
596 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
597 | return 0; | |
775cabad | 598 | |
b7a26f91 | 599 | afptr++; |
b044cda1 CW |
600 | } |
601 | ||
775cabad NC |
602 | /* Finally, exclude symbols ending with ... */ |
603 | len = strlen (n); | |
604 | afptr = autofilter_symbolsuffixlist; | |
605 | while (afptr->name) | |
606 | { | |
b7a26f91 | 607 | if ((len >= afptr->len) |
775cabad | 608 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
609 | && strncmp (n + len - afptr->len, afptr->name, |
610 | afptr->len + 1) == 0) | |
775cabad NC |
611 | return 0; |
612 | ||
b7a26f91 | 613 | afptr++; |
775cabad | 614 | } |
252b5132 | 615 | } |
775cabad | 616 | |
252b5132 | 617 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 | 618 | { |
e1c37eb5 | 619 | if (ex->type == EXCLUDELIBS) |
70b0be79 CF |
620 | { |
621 | if (libname | |
622 | && ((strcmp (libname, ex->string) == 0) | |
623 | || (strcasecmp ("ALL", ex->string) == 0))) | |
624 | return 0; | |
625 | } | |
e1c37eb5 DK |
626 | else if (ex->type == EXCLUDEFORIMPLIB) |
627 | { | |
628 | if (strcmp (abfd->filename, ex->string) == 0) | |
629 | return 0; | |
630 | } | |
70b0be79 | 631 | else if (strcmp (n, ex->string) == 0) |
658957db | 632 | return 0; |
70b0be79 | 633 | } |
775cabad | 634 | |
252b5132 RH |
635 | return 1; |
636 | } | |
637 | ||
638 | static void | |
c1711530 | 639 | process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
640 | { |
641 | int i, j; | |
642 | struct bfd_link_hash_entry *blhe; | |
643 | bfd *b; | |
198beae2 | 644 | struct bfd_section *s; |
d643799d | 645 | def_file_export *e = 0; |
252b5132 RH |
646 | |
647 | if (!pe_def_file) | |
648 | pe_def_file = def_file_empty (); | |
649 | ||
650 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 651 | sections, and push those into the def file too. */ |
252b5132 RH |
652 | for (b = info->input_bfds; b; b = b->link_next) |
653 | { | |
654 | s = bfd_get_section_by_name (b, ".drectve"); | |
655 | if (s) | |
656 | { | |
eea6121a | 657 | long size = s->size; |
252b5132 | 658 | char *buf = xmalloc (size); |
775cabad | 659 | |
252b5132 RH |
660 | bfd_get_section_contents (b, s, buf, 0, size); |
661 | def_file_add_directive (pe_def_file, buf, size); | |
662 | free (buf); | |
663 | } | |
664 | } | |
665 | ||
c1711530 DK |
666 | /* Process aligned common symbol information from the |
667 | .drectve sections now; common symbol allocation is | |
668 | done before final link, so it will be too late to | |
669 | process them in process_embedded_commands() called | |
670 | from _bfd_coff_link_input_bfd(). */ | |
671 | if (pe_def_file->aligncomms) | |
672 | { | |
673 | def_file_aligncomm *ac = pe_def_file->aligncomms; | |
674 | while (ac) | |
675 | { | |
676 | struct coff_link_hash_entry *sym_hash; | |
677 | sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
678 | ac->symbol_name, FALSE, FALSE, FALSE); | |
679 | if (sym_hash && sym_hash->root.type == bfd_link_hash_common | |
680 | && sym_hash->root.u.c.p->alignment_power < (unsigned) ac->alignment) | |
681 | { | |
682 | sym_hash->root.u.c.p->alignment_power = (unsigned) ac->alignment; | |
683 | } | |
684 | ac = ac->next; | |
685 | } | |
686 | } | |
687 | ||
2927aaca NC |
688 | /* If we are building an executable and there is nothing |
689 | to export, we do not build an export table at all. */ | |
690 | if (info->executable && pe_def_file->num_exports == 0 | |
691 | && (!pe_dll_export_everything || pe_dll_exclude_all_symbols)) | |
2b817be1 NC |
692 | return; |
693 | ||
86b1cc60 | 694 | /* Now, maybe export everything else the default way. */ |
2927aaca NC |
695 | if ((pe_dll_export_everything || pe_def_file->num_exports == 0) |
696 | && !pe_dll_exclude_all_symbols) | |
252b5132 RH |
697 | { |
698 | for (b = info->input_bfds; b; b = b->link_next) | |
699 | { | |
700 | asymbol **symbols; | |
5c1d2f5f | 701 | int nsyms; |
252b5132 | 702 | |
5c1d2f5f AM |
703 | if (!bfd_generic_link_read_symbols (b)) |
704 | { | |
705 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
706 | return; | |
707 | } | |
708 | ||
709 | symbols = bfd_get_outsymbols (b); | |
710 | nsyms = bfd_get_symcount (b); | |
252b5132 RH |
711 | |
712 | for (j = 0; j < nsyms; j++) | |
713 | { | |
d643799d | 714 | /* We should export symbols which are either global or not |
1579bae1 AM |
715 | anything at all. (.bss data is the latter) |
716 | We should not export undefined symbols. */ | |
09e2aba4 DK |
717 | bfd_boolean would_export = symbols[j]->section != &bfd_und_section |
718 | && ((symbols[j]->flags & BSF_GLOBAL) | |
719 | || (symbols[j]->flags == 0)); | |
720 | if (lang_elf_version_info && would_export) | |
721 | { | |
722 | bfd_boolean hide = 0; | |
723 | char ofs = pe_details->underscored && symbols[j]->name[0] == '_'; | |
724 | (void) bfd_find_version_for_sym (lang_elf_version_info, | |
725 | symbols[j]->name + ofs, &hide); | |
726 | would_export = !hide; | |
727 | } | |
728 | if (would_export) | |
252b5132 RH |
729 | { |
730 | const char *sn = symbols[j]->name; | |
b044cda1 | 731 | |
775cabad | 732 | /* We should not re-export imported stuff. */ |
b044cda1 | 733 | { |
e916811a | 734 | char *name; |
00479ba8 NC |
735 | if (is_import (sn)) |
736 | continue; | |
737 | ||
e916811a | 738 | name = xmalloc (strlen ("__imp_") + strlen (sn) + 1); |
00479ba8 | 739 | sprintf (name, "%s%s", "__imp_", sn); |
775cabad | 740 | |
b044cda1 | 741 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 742 | FALSE, FALSE, FALSE); |
b044cda1 CW |
743 | free (name); |
744 | ||
b7a26f91 | 745 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
746 | continue; |
747 | } | |
748 | ||
00479ba8 | 749 | if (pe_details->underscored && *sn == '_') |
252b5132 | 750 | sn++; |
775cabad | 751 | |
b044cda1 CW |
752 | if (auto_export (b, pe_def_file, sn)) |
753 | { | |
754 | def_file_export *p; | |
7fcab871 | 755 | p=def_file_add_export (pe_def_file, sn, 0, -1, NULL); |
775cabad | 756 | /* Fill data flag properly, from dlltool.c. */ |
b044cda1 CW |
757 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
758 | } | |
252b5132 RH |
759 | } |
760 | } | |
761 | } | |
762 | } | |
763 | ||
764 | #undef NE | |
765 | #define NE pe_def_file->num_exports | |
766 | ||
177b81d6 DK |
767 | /* Don't create an empty export table. */ |
768 | if (NE == 0) | |
769 | return; | |
770 | ||
86b1cc60 | 771 | /* Canonicalize the export list. */ |
252b5132 RH |
772 | if (pe_dll_kill_ats) |
773 | { | |
774 | for (i = 0; i < NE; i++) | |
775 | { | |
776 | if (strchr (pe_def_file->exports[i].name, '@')) | |
777 | { | |
86b1cc60 | 778 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
779 | pointing to the same memory as name, or might not |
780 | have. */ | |
781 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 782 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
a8d701fd | 783 | char *tmp_at = strchr (tmp, '@'); |
775cabad | 784 | |
a8d701fd DS |
785 | if (tmp_at) |
786 | *tmp_at = 0; | |
787 | else | |
788 | einfo (_("%XCannot export %s: invalid export name\n"), | |
789 | pe_def_file->exports[i].name); | |
252b5132 RH |
790 | pe_def_file->exports[i].name = tmp; |
791 | } | |
792 | } | |
793 | } | |
794 | ||
795 | if (pe_dll_stdcall_aliases) | |
796 | { | |
797 | for (i = 0; i < NE; i++) | |
798 | { | |
00479ba8 NC |
799 | if (is_import (pe_def_file->exports[i].name)) |
800 | continue; | |
801 | ||
252b5132 RH |
802 | if (strchr (pe_def_file->exports[i].name, '@')) |
803 | { | |
1579bae1 | 804 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 805 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 806 | |
252b5132 | 807 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 808 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 809 | def_file_add_export (pe_def_file, tmp, |
b044cda1 | 810 | pe_def_file->exports[i].internal_name, |
7fcab871 | 811 | -1, NULL); |
252b5132 RH |
812 | else |
813 | free (tmp); | |
814 | } | |
815 | } | |
816 | } | |
817 | ||
86b1cc60 KH |
818 | /* Convenience, but watch out for it changing. */ |
819 | e = pe_def_file->exports; | |
252b5132 | 820 | |
1579bae1 | 821 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
198beae2 | 822 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); |
252b5132 | 823 | |
198beae2 | 824 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); |
252b5132 RH |
825 | max_ordinal = 0; |
826 | min_ordinal = 65536; | |
827 | count_exported = 0; | |
828 | count_exported_byname = 0; | |
829 | count_with_ordinals = 0; | |
830 | ||
1579bae1 AM |
831 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), |
832 | pe_export_sort); | |
252b5132 RH |
833 | for (i = 0, j = 0; i < NE; i++) |
834 | { | |
835 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
836 | { | |
870df5dc | 837 | /* This is a duplicate. */ |
252b5132 RH |
838 | if (e[j - 1].ordinal != -1 |
839 | && e[i].ordinal != -1 | |
840 | && e[j - 1].ordinal != e[i].ordinal) | |
841 | { | |
870df5dc NC |
842 | if (pe_dll_warn_dup_exports) |
843 | /* xgettext:c-format */ | |
486e80e2 | 844 | einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 845 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
846 | } |
847 | else | |
848 | { | |
870df5dc NC |
849 | if (pe_dll_warn_dup_exports) |
850 | /* xgettext:c-format */ | |
851 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
852 | e[j - 1].name); | |
252b5132 | 853 | } |
775cabad | 854 | |
486e80e2 | 855 | if (e[i].ordinal != -1) |
252b5132 RH |
856 | e[j - 1].ordinal = e[i].ordinal; |
857 | e[j - 1].flag_private |= e[i].flag_private; | |
858 | e[j - 1].flag_constant |= e[i].flag_constant; | |
859 | e[j - 1].flag_noname |= e[i].flag_noname; | |
860 | e[j - 1].flag_data |= e[i].flag_data; | |
861 | } | |
862 | else | |
863 | { | |
864 | if (i != j) | |
865 | e[j] = e[i]; | |
866 | j++; | |
867 | } | |
868 | } | |
869 | pe_def_file->num_exports = j; /* == NE */ | |
870 | ||
871 | for (i = 0; i < NE; i++) | |
872 | { | |
1579bae1 | 873 | char *name; |
1579bae1 | 874 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 NC |
875 | if (pe_details->underscored |
876 | && (*pe_def_file->exports[i].internal_name != '@')) | |
c6c37250 DD |
877 | { |
878 | *name = '_'; | |
879 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
880 | } | |
881 | else | |
882 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
883 | |
884 | blhe = bfd_link_hash_lookup (info->hash, | |
885 | name, | |
b34976b6 | 886 | FALSE, FALSE, TRUE); |
252b5132 | 887 | |
8a5b676c | 888 | if (blhe |
d643799d | 889 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 890 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
891 | { |
892 | count_exported++; | |
893 | if (!pe_def_file->exports[i].flag_noname) | |
894 | count_exported_byname++; | |
8a5b676c DD |
895 | |
896 | /* Only fill in the sections. The actual offsets are computed | |
897 | in fill_exported_offsets() after common symbols are laid | |
898 | out. */ | |
d643799d | 899 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
900 | exported_symbol_sections[i] = blhe->u.def.section; |
901 | else | |
902 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 903 | |
75898d57 DK |
904 | if (pe_def_file->exports[i].ordinal != -1) |
905 | { | |
906 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
907 | max_ordinal = pe_def_file->exports[i].ordinal; | |
908 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
909 | min_ordinal = pe_def_file->exports[i].ordinal; | |
910 | count_with_ordinals++; | |
911 | } | |
912 | } | |
913 | /* Check for forward exports. These are indicated in DEF files by an | |
914 | export directive of the form NAME1 = MODULE-NAME.EXTERNAL-NAME | |
915 | but we must take care not to be fooled when the user wants to export | |
916 | a symbol that actually really has a dot in it, so we only check | |
917 | for them here, after real defined symbols have already been matched. */ | |
918 | else if (strchr (pe_def_file->exports[i].internal_name, '.')) | |
919 | { | |
920 | count_exported++; | |
921 | if (!pe_def_file->exports[i].flag_noname) | |
922 | count_exported_byname++; | |
923 | ||
924 | pe_def_file->exports[i].flag_forward = 1; | |
925 | ||
252b5132 RH |
926 | if (pe_def_file->exports[i].ordinal != -1) |
927 | { | |
928 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
929 | max_ordinal = pe_def_file->exports[i].ordinal; | |
930 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
931 | min_ordinal = pe_def_file->exports[i].ordinal; | |
932 | count_with_ordinals++; | |
933 | } | |
934 | } | |
935 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
936 | { | |
937 | /* xgettext:c-format */ | |
938 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
939 | pe_def_file->exports[i].internal_name); | |
940 | } | |
941 | else if (blhe) | |
942 | { | |
943 | /* xgettext:c-format */ | |
944 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
945 | pe_def_file->exports[i].internal_name, | |
946 | blhe->type, bfd_link_hash_defined); | |
947 | } | |
948 | else | |
949 | { | |
950 | /* xgettext:c-format */ | |
951 | einfo (_("%XCannot export %s: symbol not found\n"), | |
952 | pe_def_file->exports[i].internal_name); | |
953 | } | |
954 | free (name); | |
955 | } | |
956 | } | |
957 | ||
775cabad | 958 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
959 | |
960 | static void | |
1579bae1 | 961 | build_filler_bfd (int include_edata) |
252b5132 RH |
962 | { |
963 | lang_input_statement_type *filler_file; | |
964 | filler_file = lang_add_input_file ("dll stuff", | |
965 | lang_input_file_is_fake_enum, | |
966 | NULL); | |
f13a99db AM |
967 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", |
968 | link_info.output_bfd); | |
252b5132 RH |
969 | if (filler_bfd == NULL |
970 | || !bfd_set_arch_mach (filler_bfd, | |
f13a99db AM |
971 | bfd_get_arch (link_info.output_bfd), |
972 | bfd_get_mach (link_info.output_bfd))) | |
252b5132 | 973 | { |
36230712 | 974 | einfo ("%X%P: can not create BFD: %E\n"); |
252b5132 RH |
975 | return; |
976 | } | |
977 | ||
c6c37250 | 978 | if (include_edata) |
252b5132 | 979 | { |
c6c37250 DD |
980 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
981 | if (edata_s == NULL | |
982 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
983 | (SEC_HAS_CONTENTS | |
984 | | SEC_ALLOC | |
985 | | SEC_LOAD | |
986 | | SEC_KEEP | |
987 | | SEC_IN_MEMORY))) | |
988 | { | |
989 | einfo ("%X%P: can not create .edata section: %E\n"); | |
990 | return; | |
991 | } | |
992 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 993 | } |
252b5132 RH |
994 | |
995 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
996 | if (reloc_s == NULL | |
997 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
998 | (SEC_HAS_CONTENTS | |
999 | | SEC_ALLOC | |
1000 | | SEC_LOAD | |
1001 | | SEC_KEEP | |
1002 | | SEC_IN_MEMORY))) | |
1003 | { | |
1004 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
1005 | return; | |
1006 | } | |
775cabad | 1007 | |
252b5132 RH |
1008 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
1009 | ||
1010 | ldlang_add_file (filler_file); | |
1011 | } | |
1012 | ||
775cabad | 1013 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
1014 | |
1015 | static void | |
1579bae1 | 1016 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
1017 | { |
1018 | int i, next_ordinal; | |
1019 | int name_table_size = 0; | |
1020 | const char *dlnp; | |
1021 | ||
1022 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 1023 | and what the range of ordinals is. */ |
252b5132 | 1024 | if (pe_def_file->name) |
775cabad | 1025 | dll_name = pe_def_file->name; |
252b5132 RH |
1026 | else |
1027 | { | |
1028 | dll_name = abfd->filename; | |
775cabad | 1029 | |
252b5132 | 1030 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
1031 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
1032 | dll_name = dlnp + 1; | |
252b5132 RH |
1033 | } |
1034 | ||
1035 | if (count_with_ordinals && max_ordinal > count_exported) | |
1036 | { | |
1037 | if (min_ordinal > max_ordinal - count_exported + 1) | |
1038 | min_ordinal = max_ordinal - count_exported + 1; | |
1039 | } | |
1040 | else | |
1041 | { | |
1042 | min_ordinal = 1; | |
1043 | max_ordinal = count_exported; | |
1044 | } | |
252b5132 | 1045 | |
775cabad | 1046 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 1047 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
1048 | for (i = 0; i < export_table_size; i++) |
1049 | exported_symbols[i] = -1; | |
1050 | ||
86b1cc60 | 1051 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
1052 | for (i = 0; i < NE; i++) |
1053 | { | |
a8d701fd DS |
1054 | if (exported_symbol_sections[i] || |
1055 | pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
1056 | { |
1057 | if (pe_def_file->exports[i].ordinal != -1) | |
1058 | { | |
1059 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
1060 | int pi = exported_symbols[ei]; | |
775cabad | 1061 | |
252b5132 RH |
1062 | if (pi != -1) |
1063 | { | |
1064 | /* xgettext:c-format */ | |
486e80e2 | 1065 | einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
1066 | pe_def_file->exports[i].ordinal, |
1067 | pe_def_file->exports[i].name, | |
1068 | pe_def_file->exports[pi].name); | |
1069 | } | |
1070 | exported_symbols[ei] = i; | |
1071 | } | |
7fcab871 KT |
1072 | if (pe_def_file->exports[i].its_name) |
1073 | name_table_size += strlen (pe_def_file->exports[i].its_name) + 1; | |
1074 | else | |
1075 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
252b5132 | 1076 | } |
a8d701fd DS |
1077 | |
1078 | /* Reserve space for the forward name. */ | |
1079 | if (pe_def_file->exports[i].flag_forward) | |
1080 | { | |
1081 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
1082 | } | |
252b5132 RH |
1083 | } |
1084 | ||
1085 | next_ordinal = min_ordinal; | |
1086 | for (i = 0; i < NE; i++) | |
a8d701fd DS |
1087 | if ((exported_symbol_sections[i] || |
1088 | pe_def_file->exports[i].flag_forward) && | |
1089 | pe_def_file->exports[i].ordinal == -1) | |
1090 | { | |
1091 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
1092 | next_ordinal++; | |
775cabad | 1093 | |
a8d701fd DS |
1094 | exported_symbols[next_ordinal - min_ordinal] = i; |
1095 | pe_def_file->exports[i].ordinal = next_ordinal; | |
1096 | } | |
252b5132 | 1097 | |
86b1cc60 | 1098 | /* OK, now we can allocate some memory. */ |
775cabad NC |
1099 | edata_sz = (40 /* directory */ |
1100 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
1101 | + 4 * count_exported_byname /* name ptrs */ |
1102 | + 2 * count_exported_byname /* ordinals */ | |
1103 | + name_table_size + strlen (dll_name) + 1); | |
1104 | } | |
1105 | ||
8a5b676c | 1106 | /* Fill the exported symbol offsets. The preliminary work has already |
c1711530 | 1107 | been done in process_def_file_and_drectve(). */ |
8a5b676c DD |
1108 | |
1109 | static void | |
1579bae1 | 1110 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 1111 | { |
f0c87f88 | 1112 | int i; |
8a5b676c | 1113 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 1114 | |
8a5b676c DD |
1115 | for (i = 0; i < pe_def_file->num_exports; i++) |
1116 | { | |
1579bae1 | 1117 | char *name; |
775cabad | 1118 | |
1579bae1 | 1119 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 1120 | if (pe_details->underscored |
1579bae1 | 1121 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
1122 | { |
1123 | *name = '_'; | |
1124 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
1125 | } | |
1126 | else | |
1127 | strcpy (name, pe_def_file->exports[i].internal_name); | |
1128 | ||
1129 | blhe = bfd_link_hash_lookup (info->hash, | |
1130 | name, | |
b34976b6 | 1131 | FALSE, FALSE, TRUE); |
8a5b676c | 1132 | |
1579bae1 | 1133 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
1134 | exported_symbol_offsets[i] = blhe->u.def.value; |
1135 | ||
8a5b676c DD |
1136 | free (name); |
1137 | } | |
1138 | } | |
1139 | ||
252b5132 | 1140 | static void |
1579bae1 | 1141 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 1142 | { |
03a1c9a7 | 1143 | int s, hint; |
252b5132 | 1144 | unsigned char *edirectory; |
2f9636ba AM |
1145 | unsigned char *eaddresses; |
1146 | unsigned char *enameptrs; | |
1147 | unsigned char *eordinals; | |
47639182 | 1148 | char *enamestr; |
252b5132 RH |
1149 | time_t now; |
1150 | ||
1151 | time (&now); | |
1152 | ||
1579bae1 | 1153 | edata_d = xmalloc (edata_sz); |
252b5132 | 1154 | |
86b1cc60 | 1155 | /* Note use of array pointer math here. */ |
252b5132 | 1156 | edirectory = edata_d; |
c7e2358a | 1157 | eaddresses = edirectory + 40; |
2f9636ba AM |
1158 | enameptrs = eaddresses + 4 * export_table_size; |
1159 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 1160 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 1161 | |
1579bae1 AM |
1162 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
1163 | + edata_s->output_section->vma - image_base) | |
252b5132 | 1164 | |
c2a94a7a | 1165 | memset (edata_d, 0, edata_sz); |
252b5132 RH |
1166 | bfd_put_32 (abfd, now, edata_d + 4); |
1167 | if (pe_def_file->version_major != -1) | |
1168 | { | |
1169 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1170 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1171 | } | |
775cabad | 1172 | |
252b5132 RH |
1173 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1174 | strcpy (enamestr, dll_name); | |
1175 | enamestr += strlen (enamestr) + 1; | |
1176 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1177 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1178 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1179 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1180 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1181 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1182 | ||
8a5b676c DD |
1183 | fill_exported_offsets (abfd, info); |
1184 | ||
03a1c9a7 NC |
1185 | /* Ok, now for the filling in part. |
1186 | Scan alphabetically - ie the ordering in the exports[] table, | |
1187 | rather than by ordinal - the ordering in the exported_symbol[] | |
1188 | table. See dlltool.c and: | |
1189 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html | |
1579bae1 | 1190 | for more information. */ |
252b5132 | 1191 | hint = 0; |
03a1c9a7 | 1192 | for (s = 0; s < NE; s++) |
252b5132 | 1193 | { |
f5a95868 | 1194 | struct bfd_section *ssec = exported_symbol_sections[s]; |
a8d701fd DS |
1195 | if (pe_def_file->exports[s].ordinal != -1 && |
1196 | (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1197 | { |
45b1f63c | 1198 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1199 | |
a8d701fd DS |
1200 | if (pe_def_file->exports[s].flag_forward) |
1201 | { | |
1202 | bfd_put_32 (abfd, ERVA (enamestr), | |
1203 | eaddresses + 4 * (ord - min_ordinal)); | |
1204 | ||
1205 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1206 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1207 | } | |
1208 | else | |
1209 | { | |
6ca0987a | 1210 | bfd_vma srva = (exported_symbol_offsets[s] |
a8d701fd DS |
1211 | + ssec->output_section->vma |
1212 | + ssec->output_offset); | |
1213 | ||
1214 | bfd_put_32 (abfd, srva - image_base, | |
1215 | eaddresses + 4 * (ord - min_ordinal)); | |
1216 | } | |
775cabad | 1217 | |
252b5132 RH |
1218 | if (!pe_def_file->exports[s].flag_noname) |
1219 | { | |
1220 | char *ename = pe_def_file->exports[s].name; | |
7fcab871 KT |
1221 | if (pe_def_file->exports[s].its_name) |
1222 | ename = pe_def_file->exports[s].its_name; | |
03a1c9a7 | 1223 | |
2f9636ba AM |
1224 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1225 | enameptrs += 4; | |
252b5132 RH |
1226 | strcpy (enamestr, ename); |
1227 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1228 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1229 | eordinals += 2; | |
252b5132 RH |
1230 | pe_def_file->exports[s].hint = hint++; |
1231 | } | |
252b5132 RH |
1232 | } |
1233 | } | |
1234 | } | |
1235 | ||
b044cda1 | 1236 | |
198beae2 | 1237 | static struct bfd_section *current_sec; |
b044cda1 CW |
1238 | |
1239 | void | |
1579bae1 AM |
1240 | pe_walk_relocs_of_symbol (struct bfd_link_info *info, |
1241 | const char *name, | |
1242 | int (*cb) (arelent *, asection *)) | |
b044cda1 CW |
1243 | { |
1244 | bfd *b; | |
0d888aac | 1245 | asection *s; |
b044cda1 CW |
1246 | |
1247 | for (b = info->input_bfds; b; b = b->link_next) | |
1248 | { | |
775cabad | 1249 | asymbol **symbols; |
775cabad | 1250 | |
5c1d2f5f AM |
1251 | if (!bfd_generic_link_read_symbols (b)) |
1252 | { | |
1253 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1254 | return; | |
1255 | } | |
1256 | ||
1257 | symbols = bfd_get_outsymbols (b); | |
b044cda1 CW |
1258 | |
1259 | for (s = b->sections; s; s = s->next) | |
1260 | { | |
775cabad NC |
1261 | arelent **relocs; |
1262 | int relsize, nrelocs, i; | |
b044cda1 CW |
1263 | int flags = bfd_get_section_flags (b, s); |
1264 | ||
775cabad | 1265 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1266 | if (flags & SEC_LINK_ONCE |
1267 | && s->output_section == bfd_abs_section_ptr) | |
1268 | continue; | |
1269 | ||
0d888aac | 1270 | current_sec = s; |
b044cda1 | 1271 | |
b044cda1 | 1272 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1273 | relocs = xmalloc (relsize); |
b044cda1 CW |
1274 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1275 | ||
1276 | for (i = 0; i < nrelocs; i++) | |
1277 | { | |
fc0a2244 | 1278 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad NC |
1279 | |
1280 | if (!strcmp (name, sym->name)) | |
1281 | cb (relocs[i], s); | |
b044cda1 | 1282 | } |
775cabad | 1283 | |
b044cda1 | 1284 | free (relocs); |
775cabad | 1285 | |
b044cda1 CW |
1286 | /* Warning: the allocated symbols are remembered in BFD and reused |
1287 | later, so don't free them! */ | |
1288 | /* free (symbols); */ | |
1289 | } | |
1290 | } | |
1291 | } | |
1292 | ||
775cabad | 1293 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1294 | |
1295 | static void | |
1579bae1 | 1296 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1297 | { |
1298 | ||
86b1cc60 | 1299 | /* For .reloc stuff. */ |
c6c37250 | 1300 | reloc_data_type *reloc_data; |
252b5132 RH |
1301 | int total_relocs = 0; |
1302 | int i; | |
6ca0987a KT |
1303 | bfd_vma sec_page = (bfd_vma) -1; |
1304 | bfd_vma page_ptr, page_count; | |
252b5132 RH |
1305 | int bi; |
1306 | bfd *b; | |
198beae2 | 1307 | struct bfd_section *s; |
252b5132 RH |
1308 | |
1309 | total_relocs = 0; | |
1310 | for (b = info->input_bfds; b; b = b->link_next) | |
1311 | for (s = b->sections; s; s = s->next) | |
1312 | total_relocs += s->reloc_count; | |
1313 | ||
1579bae1 | 1314 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1315 | |
1316 | total_relocs = 0; | |
1317 | bi = 0; | |
1318 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
1319 | { | |
1320 | arelent **relocs; | |
91d6fa6a | 1321 | int relsize, nrelocs; |
252b5132 RH |
1322 | |
1323 | for (s = b->sections; s; s = s->next) | |
1324 | { | |
6ca0987a | 1325 | bfd_vma sec_vma = s->output_section->vma + s->output_offset; |
252b5132 | 1326 | asymbol **symbols; |
252b5132 | 1327 | |
86b1cc60 | 1328 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1329 | if (!(s->output_section->flags & SEC_LOAD)) |
1330 | continue; | |
1331 | ||
1332 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1333 | seen it happen - DJ */ |
252b5132 RH |
1334 | if (s->output_section == &bfd_abs_section) |
1335 | continue; | |
1336 | ||
1337 | if (s->output_section->vma == 0) | |
1338 | { | |
86b1cc60 | 1339 | /* Huh? Shouldn't happen, but punt if it does. */ |
252b5132 RH |
1340 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", |
1341 | s->output_section->name, s->output_section->index, | |
1342 | s->output_section->flags); | |
1343 | continue; | |
1344 | } | |
1345 | ||
5c1d2f5f AM |
1346 | if (!bfd_generic_link_read_symbols (b)) |
1347 | { | |
1348 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1349 | return; | |
1350 | } | |
252b5132 | 1351 | |
5c1d2f5f | 1352 | symbols = bfd_get_outsymbols (b); |
252b5132 | 1353 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1354 | relocs = xmalloc (relsize); |
252b5132 RH |
1355 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1356 | ||
1357 | for (i = 0; i < nrelocs; i++) | |
1358 | { | |
b044cda1 | 1359 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1360 | { |
fc0a2244 | 1361 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1362 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1363 | } |
252b5132 | 1364 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1365 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1366 | { |
fc0a2244 | 1367 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1368 | |
1b610c93 | 1369 | /* Don't create relocs for undefined weak symbols. */ |
49314f87 DS |
1370 | if (sym->flags == BSF_WEAK) |
1371 | { | |
1372 | struct bfd_link_hash_entry *blhe | |
9dda37c1 | 1373 | = bfd_wrapped_link_hash_lookup (abfd, info, sym->name, |
49314f87 | 1374 | FALSE, FALSE, FALSE); |
9dda37c1 DK |
1375 | if (blhe && blhe->type == bfd_link_hash_undefweak) |
1376 | { | |
1377 | /* Check aux sym and see if it is defined or not. */ | |
1378 | struct coff_link_hash_entry *h, *h2; | |
1379 | h = (struct coff_link_hash_entry *)blhe; | |
1380 | if (h->symbol_class != C_NT_WEAK || h->numaux != 1) | |
1381 | continue; | |
1382 | h2 = h->auxbfd->tdata.coff_obj_data->sym_hashes | |
1383 | [h->aux->x_sym.x_tagndx.l]; | |
1384 | /* We don't want a base reloc if the aux sym is not | |
1385 | found, undefined, or if it is the constant ABS | |
1386 | zero default value. (We broaden that slightly by | |
1387 | not testing the value, just the section; there's | |
1388 | no reason we'd want a reference to any absolute | |
1389 | address to get relocated during rebasing). */ | |
1390 | if (!h2 || h2->root.type == bfd_link_hash_undefined | |
1391 | || h2->root.u.def.section == &bfd_abs_section) | |
1392 | continue; | |
1393 | } | |
1394 | else if (!blhe || blhe->type != bfd_link_hash_defined) | |
1395 | continue; | |
49314f87 DS |
1396 | } |
1397 | ||
c6c37250 | 1398 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; |
5cc18311 | 1399 | |
344a211f | 1400 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1401 | |
344a211f NC |
1402 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1403 | relocs[i]->howto->rightshift) | |
252b5132 | 1404 | { |
99ad8390 NC |
1405 | #ifdef pe_use_x86_64 |
1406 | case BITS_AND_SHIFT (64, 0): | |
1407 | reloc_data[total_relocs].type = 10; | |
1408 | total_relocs++; | |
1409 | break; | |
1410 | #endif | |
344a211f | 1411 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1412 | reloc_data[total_relocs].type = 3; |
1413 | total_relocs++; | |
252b5132 | 1414 | break; |
344a211f NC |
1415 | case BITS_AND_SHIFT (16, 0): |
1416 | reloc_data[total_relocs].type = 2; | |
1417 | total_relocs++; | |
1418 | break; | |
1419 | case BITS_AND_SHIFT (16, 16): | |
1420 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1421 | /* FIXME: we can't know the symbol's right value |
1422 | yet, but we probably can safely assume that | |
1423 | CE will relocate us in 64k blocks, so leaving | |
1424 | it zero is safe. */ | |
344a211f NC |
1425 | reloc_data[total_relocs].extra = 0; |
1426 | total_relocs++; | |
1427 | break; | |
1428 | case BITS_AND_SHIFT (26, 2): | |
1429 | reloc_data[total_relocs].type = 5; | |
1430 | total_relocs++; | |
1431 | break; | |
fea39bcb | 1432 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1433 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1434 | Those ARM_xxx definitions should go in proper | |
1435 | header someday. */ | |
1436 | if (relocs[i]->howto->type == 0 | |
1437 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1438 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1439 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1440 | that has already been fully processed during a | |
1441 | previous link stage, so ignore it here. */ | |
1442 | break; | |
1443 | /* Fall through. */ | |
252b5132 RH |
1444 | default: |
1445 | /* xgettext:c-format */ | |
1446 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
1447 | relocs[i]->howto->bitsize); | |
1448 | break; | |
1449 | } | |
1450 | } | |
1451 | } | |
1452 | free (relocs); | |
86b1cc60 KH |
1453 | /* Warning: the allocated symbols are remembered in BFD and |
1454 | reused later, so don't free them! */ | |
252b5132 RH |
1455 | } |
1456 | } | |
1457 | ||
1458 | /* At this point, we have total_relocs relocation addresses in | |
1459 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1460 | We must now create the new sections. */ |
c6c37250 | 1461 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1462 | |
1463 | for (i = 0; i < total_relocs; i++) | |
1464 | { | |
6ca0987a | 1465 | bfd_vma this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1466 | |
252b5132 RH |
1467 | if (this_page != sec_page) |
1468 | { | |
775cabad | 1469 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1470 | reloc_sz += 8; |
1471 | sec_page = this_page; | |
1472 | } | |
5cc18311 | 1473 | |
252b5132 | 1474 | reloc_sz += 2; |
5cc18311 | 1475 | |
344a211f NC |
1476 | if (reloc_data[i].type == 4) |
1477 | reloc_sz += 2; | |
252b5132 | 1478 | } |
b7a26f91 | 1479 | |
775cabad | 1480 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 | 1481 | reloc_d = xmalloc (reloc_sz); |
6ca0987a | 1482 | sec_page = (bfd_vma) -1; |
252b5132 | 1483 | reloc_sz = 0; |
6ca0987a | 1484 | page_ptr = (bfd_vma) -1; |
252b5132 | 1485 | page_count = 0; |
775cabad | 1486 | |
252b5132 RH |
1487 | for (i = 0; i < total_relocs; i++) |
1488 | { | |
6ca0987a KT |
1489 | bfd_vma rva = reloc_data[i].vma - image_base; |
1490 | bfd_vma this_page = (rva & ~0xfff); | |
775cabad | 1491 | |
252b5132 RH |
1492 | if (this_page != sec_page) |
1493 | { | |
1494 | while (reloc_sz & 3) | |
1495 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1496 | |
6ca0987a | 1497 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1498 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1499 | |
252b5132 RH |
1500 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1501 | page_ptr = reloc_sz; | |
1502 | reloc_sz += 8; | |
1503 | sec_page = this_page; | |
1504 | page_count = 0; | |
1505 | } | |
775cabad | 1506 | |
d643799d | 1507 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1508 | reloc_d + reloc_sz); |
252b5132 | 1509 | reloc_sz += 2; |
775cabad | 1510 | |
c6c37250 DD |
1511 | if (reloc_data[i].type == 4) |
1512 | { | |
1513 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1514 | reloc_sz += 2; | |
1515 | } | |
775cabad | 1516 | |
252b5132 RH |
1517 | page_count++; |
1518 | } | |
775cabad | 1519 | |
252b5132 RH |
1520 | while (reloc_sz & 3) |
1521 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1522 | |
6ca0987a | 1523 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1524 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1525 | |
eea6121a | 1526 | while (reloc_sz < reloc_s->size) |
252b5132 RH |
1527 | reloc_d[reloc_sz++] = 0; |
1528 | } | |
1529 | ||
775cabad NC |
1530 | /* Given the exiting def_file structure, print out a .DEF file that |
1531 | corresponds to it. */ | |
252b5132 RH |
1532 | |
1533 | static void | |
1579bae1 | 1534 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1535 | { |
1536 | char *cp; | |
775cabad | 1537 | |
252b5132 RH |
1538 | for (cp = s; *cp; cp++) |
1539 | if (*cp == '\'' | |
1540 | || *cp == '"' | |
1541 | || *cp == '\\' | |
3882b010 | 1542 | || ISSPACE (*cp) |
252b5132 RH |
1543 | || *cp == ',' |
1544 | || *cp == ';') | |
1545 | needs_quotes = 1; | |
775cabad | 1546 | |
252b5132 RH |
1547 | if (needs_quotes) |
1548 | { | |
1549 | putc ('"', f); | |
775cabad | 1550 | |
252b5132 RH |
1551 | while (*s) |
1552 | { | |
1553 | if (*s == '"' || *s == '\\') | |
1554 | putc ('\\', f); | |
775cabad | 1555 | |
252b5132 RH |
1556 | putc (*s, f); |
1557 | s++; | |
1558 | } | |
775cabad | 1559 | |
252b5132 RH |
1560 | putc ('"', f); |
1561 | } | |
1562 | else | |
1563 | fputs (s, f); | |
1564 | } | |
1565 | ||
1566 | void | |
1579bae1 | 1567 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1568 | { |
1569 | int i; | |
1570 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1571 | |
252b5132 | 1572 | if (out == NULL) |
775cabad NC |
1573 | /* xgettext:c-format */ |
1574 | einfo (_("%s: Can't open output def file %s\n"), | |
1575 | program_name, pe_out_def_filename); | |
252b5132 RH |
1576 | |
1577 | if (pe_def_file) | |
1578 | { | |
1579 | if (pe_def_file->name) | |
1580 | { | |
1581 | if (pe_def_file->is_dll) | |
1582 | fprintf (out, "LIBRARY "); | |
1583 | else | |
1584 | fprintf (out, "NAME "); | |
775cabad | 1585 | |
252b5132 | 1586 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1587 | |
f13a99db | 1588 | if (pe_data (link_info.output_bfd)->pe_opthdr.ImageBase) |
0ead4f8d KT |
1589 | { |
1590 | fprintf (out, " BASE=0x"); | |
1591 | fprintf_vma (out, ((bfd_vma) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase)); | |
1592 | } | |
252b5132 RH |
1593 | fprintf (out, "\n"); |
1594 | } | |
1595 | ||
1596 | if (pe_def_file->description) | |
1597 | { | |
1598 | fprintf (out, "DESCRIPTION "); | |
1599 | quoteput (pe_def_file->description, out, 1); | |
1600 | fprintf (out, "\n"); | |
1601 | } | |
1602 | ||
1603 | if (pe_def_file->version_minor != -1) | |
1604 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1605 | pe_def_file->version_minor); | |
1606 | else if (pe_def_file->version_major != -1) | |
1607 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1608 | ||
1609 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1610 | fprintf (out, "\n"); | |
1611 | ||
1612 | if (pe_def_file->stack_commit != -1) | |
1613 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1614 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1615 | else if (pe_def_file->stack_reserve != -1) | |
1616 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1617 | |
252b5132 RH |
1618 | if (pe_def_file->heap_commit != -1) |
1619 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1620 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1621 | else if (pe_def_file->heap_reserve != -1) | |
1622 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1623 | ||
1624 | if (pe_def_file->num_section_defs > 0) | |
1625 | { | |
1626 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1627 | |
252b5132 RH |
1628 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1629 | { | |
1630 | fprintf (out, " "); | |
1631 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1632 | |
252b5132 RH |
1633 | if (pe_def_file->section_defs[i].class) |
1634 | { | |
1635 | fprintf (out, " CLASS "); | |
1636 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1637 | } | |
775cabad | 1638 | |
252b5132 RH |
1639 | if (pe_def_file->section_defs[i].flag_read) |
1640 | fprintf (out, " READ"); | |
775cabad | 1641 | |
252b5132 RH |
1642 | if (pe_def_file->section_defs[i].flag_write) |
1643 | fprintf (out, " WRITE"); | |
775cabad | 1644 | |
252b5132 RH |
1645 | if (pe_def_file->section_defs[i].flag_execute) |
1646 | fprintf (out, " EXECUTE"); | |
775cabad | 1647 | |
252b5132 RH |
1648 | if (pe_def_file->section_defs[i].flag_shared) |
1649 | fprintf (out, " SHARED"); | |
775cabad | 1650 | |
252b5132 RH |
1651 | fprintf (out, "\n"); |
1652 | } | |
1653 | } | |
1654 | ||
1655 | if (pe_def_file->num_exports > 0) | |
1656 | { | |
b044cda1 | 1657 | fprintf (out, "EXPORTS\n"); |
775cabad | 1658 | |
252b5132 RH |
1659 | for (i = 0; i < pe_def_file->num_exports; i++) |
1660 | { | |
1661 | def_file_export *e = pe_def_file->exports + i; | |
1662 | fprintf (out, " "); | |
1663 | quoteput (e->name, out, 0); | |
775cabad | 1664 | |
252b5132 RH |
1665 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1666 | { | |
1667 | fprintf (out, " = "); | |
1668 | quoteput (e->internal_name, out, 0); | |
1669 | } | |
775cabad | 1670 | |
252b5132 RH |
1671 | if (e->ordinal != -1) |
1672 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1673 | |
252b5132 RH |
1674 | if (e->flag_private) |
1675 | fprintf (out, " PRIVATE"); | |
775cabad | 1676 | |
252b5132 RH |
1677 | if (e->flag_constant) |
1678 | fprintf (out, " CONSTANT"); | |
775cabad | 1679 | |
252b5132 RH |
1680 | if (e->flag_noname) |
1681 | fprintf (out, " NONAME"); | |
775cabad | 1682 | |
252b5132 RH |
1683 | if (e->flag_data) |
1684 | fprintf (out, " DATA"); | |
1685 | ||
1686 | fprintf (out, "\n"); | |
1687 | } | |
1688 | } | |
1689 | ||
1690 | if (pe_def_file->num_imports > 0) | |
1691 | { | |
1692 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1693 | |
252b5132 RH |
1694 | for (i = 0; i < pe_def_file->num_imports; i++) |
1695 | { | |
1696 | def_file_import *im = pe_def_file->imports + i; | |
1697 | fprintf (out, " "); | |
775cabad | 1698 | |
252b5132 RH |
1699 | if (im->internal_name |
1700 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1701 | { | |
1702 | quoteput (im->internal_name, out, 0); | |
1703 | fprintf (out, " = "); | |
1704 | } | |
775cabad | 1705 | |
252b5132 RH |
1706 | quoteput (im->module->name, out, 0); |
1707 | fprintf (out, "."); | |
775cabad | 1708 | |
252b5132 RH |
1709 | if (im->name) |
1710 | quoteput (im->name, out, 0); | |
1711 | else | |
1712 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1713 | |
7fcab871 KT |
1714 | if (im->its_name) |
1715 | { | |
1716 | fprintf (out, " == "); | |
1717 | quoteput (im->its_name, out, 0); | |
1718 | } | |
1719 | ||
252b5132 RH |
1720 | fprintf (out, "\n"); |
1721 | } | |
1722 | } | |
1723 | } | |
1724 | else | |
1725 | fprintf (out, _("; no contents available\n")); | |
1726 | ||
1727 | if (fclose (out) == EOF) | |
775cabad NC |
1728 | /* xgettext:c-format */ |
1729 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
252b5132 RH |
1730 | } |
1731 | ||
775cabad | 1732 | /* Generate the import library. */ |
252b5132 RH |
1733 | |
1734 | static asymbol **symtab; | |
1735 | static int symptr; | |
1736 | static int tmp_seq; | |
9382254d | 1737 | static int tmp_seq2; |
252b5132 RH |
1738 | static const char *dll_filename; |
1739 | static char *dll_symname; | |
1740 | ||
1741 | #define UNDSEC (asection *) &bfd_und_section | |
1742 | ||
1743 | static asection * | |
1579bae1 | 1744 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1745 | { |
1746 | asection *sec; | |
1747 | asymbol *sym; | |
1748 | ||
1749 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1750 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1751 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1752 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1753 | sec->output_section = sec; |
1754 | ||
1755 | sym = bfd_make_empty_symbol (abfd); | |
1756 | symtab[symptr++] = sym; | |
1757 | sym->name = sec->name; | |
1758 | sym->section = sec; | |
1759 | sym->flags = BSF_LOCAL; | |
1760 | sym->value = 0; | |
1761 | ||
1762 | return sec; | |
1763 | } | |
1764 | ||
1765 | static void | |
1579bae1 AM |
1766 | quick_symbol (bfd *abfd, |
1767 | const char *n1, | |
1768 | const char *n2, | |
1769 | const char *n3, | |
1770 | asection *sec, | |
1771 | int flags, | |
1772 | int addr) | |
252b5132 RH |
1773 | { |
1774 | asymbol *sym; | |
1579bae1 | 1775 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1776 | |
252b5132 RH |
1777 | strcpy (name, n1); |
1778 | strcat (name, n2); | |
1779 | strcat (name, n3); | |
1780 | sym = bfd_make_empty_symbol (abfd); | |
1781 | sym->name = name; | |
1782 | sym->section = sec; | |
1783 | sym->flags = flags; | |
1784 | sym->value = addr; | |
1785 | symtab[symptr++] = sym; | |
1786 | } | |
1787 | ||
1788 | static arelent *reltab = 0; | |
1789 | static int relcount = 0, relsize = 0; | |
1790 | ||
1791 | static void | |
0ead4f8d | 1792 | quick_reloc (bfd *abfd, bfd_size_type address, int which_howto, int symidx) |
252b5132 | 1793 | { |
1579bae1 | 1794 | if (relcount >= relsize - 1) |
252b5132 RH |
1795 | { |
1796 | relsize += 10; | |
1797 | if (reltab) | |
1579bae1 | 1798 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 1799 | else |
1579bae1 | 1800 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
1801 | } |
1802 | reltab[relcount].address = address; | |
1803 | reltab[relcount].addend = 0; | |
1804 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1805 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1806 | relcount++; | |
1807 | } | |
1808 | ||
1809 | static void | |
1810 | save_relocs (asection *sec) | |
1811 | { | |
1812 | int i; | |
775cabad | 1813 | |
252b5132 RH |
1814 | sec->relocation = reltab; |
1815 | sec->reloc_count = relcount; | |
1579bae1 | 1816 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 1817 | for (i = 0; i < relcount; i++) |
252b5132 RH |
1818 | sec->orelocation[i] = sec->relocation + i; |
1819 | sec->orelocation[relcount] = 0; | |
1820 | sec->flags |= SEC_RELOC; | |
1821 | reltab = 0; | |
1822 | relcount = relsize = 0; | |
1823 | } | |
1824 | ||
775cabad NC |
1825 | /* .section .idata$2 |
1826 | .global __head_my_dll | |
1827 | __head_my_dll: | |
1828 | .rva hname | |
1829 | .long 0 | |
1830 | .long 0 | |
1831 | .rva __my_dll_iname | |
1832 | .rva fthunk | |
b7a26f91 | 1833 | |
775cabad NC |
1834 | .section .idata$5 |
1835 | .long 0 | |
1836 | fthunk: | |
b7a26f91 | 1837 | |
775cabad NC |
1838 | .section .idata$4 |
1839 | .long 0 | |
1840 | hname: */ | |
252b5132 RH |
1841 | |
1842 | static bfd * | |
1579bae1 | 1843 | make_head (bfd *parent) |
252b5132 RH |
1844 | { |
1845 | asection *id2, *id5, *id4; | |
1846 | unsigned char *d2, *d5, *d4; | |
1847 | char *oname; | |
1848 | bfd *abfd; | |
1849 | ||
1579bae1 | 1850 | oname = xmalloc (20); |
252b5132 RH |
1851 | sprintf (oname, "d%06d.o", tmp_seq); |
1852 | tmp_seq++; | |
1853 | ||
1854 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1855 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1856 | bfd_make_writable (abfd); |
1857 | ||
1858 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1859 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1860 | |
1861 | symptr = 0; | |
1579bae1 | 1862 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
1863 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
1864 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1865 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
1866 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1867 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
1868 | |
1869 | /* OK, pay attention here. I got confused myself looking back at | |
1870 | it. We create a four-byte section to mark the beginning of the | |
1871 | list, and we include an offset of 4 in the section, so that the | |
1872 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 1873 | the start of the list of sections from other objects. */ |
252b5132 RH |
1874 | |
1875 | bfd_set_section_size (abfd, id2, 20); | |
1579bae1 | 1876 | d2 = xmalloc (20); |
252b5132 RH |
1877 | id2->contents = d2; |
1878 | memset (d2, 0, 20); | |
ce11ba6c KT |
1879 | if (pe_use_nul_prefixed_import_tables) |
1880 | d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */ | |
252b5132 RH |
1881 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
1882 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1883 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1884 | save_relocs (id2); | |
1885 | ||
ce11ba6c KT |
1886 | if (pe_use_nul_prefixed_import_tables) |
1887 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); | |
1888 | else | |
1889 | bfd_set_section_size (abfd, id5, 0); | |
99ad8390 | 1890 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 1891 | id5->contents = d5; |
99ad8390 | 1892 | memset (d5, 0, PE_IDATA5_SIZE); |
ce11ba6c KT |
1893 | if (pe_use_nul_prefixed_import_tables) |
1894 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); | |
1895 | else | |
1896 | bfd_set_section_size (abfd, id4, 0); | |
99ad8390 | 1897 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 1898 | id4->contents = d4; |
99ad8390 | 1899 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 RH |
1900 | |
1901 | bfd_set_symtab (abfd, symtab, symptr); | |
1902 | ||
1903 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
ce11ba6c KT |
1904 | if (pe_use_nul_prefixed_import_tables) |
1905 | { | |
1906 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
1907 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
1908 | } | |
1909 | else | |
1910 | { | |
1911 | bfd_set_section_contents (abfd, id5, d5, 0, 0); | |
1912 | bfd_set_section_contents (abfd, id4, d4, 0, 0); | |
1913 | } | |
5cc18311 | 1914 | |
252b5132 RH |
1915 | bfd_make_readable (abfd); |
1916 | return abfd; | |
1917 | } | |
1918 | ||
775cabad NC |
1919 | /* .section .idata$4 |
1920 | .long 0 | |
99ad8390 | 1921 | [.long 0] for PE+ |
775cabad NC |
1922 | .section .idata$5 |
1923 | .long 0 | |
99ad8390 | 1924 | [.long 0] for PE+ |
775cabad NC |
1925 | .section idata$7 |
1926 | .global __my_dll_iname | |
1927 | __my_dll_iname: | |
1928 | .asciz "my.dll" */ | |
252b5132 RH |
1929 | |
1930 | static bfd * | |
1579bae1 | 1931 | make_tail (bfd *parent) |
252b5132 RH |
1932 | { |
1933 | asection *id4, *id5, *id7; | |
1934 | unsigned char *d4, *d5, *d7; | |
1935 | int len; | |
1936 | char *oname; | |
1937 | bfd *abfd; | |
1938 | ||
1579bae1 | 1939 | oname = xmalloc (20); |
252b5132 RH |
1940 | sprintf (oname, "d%06d.o", tmp_seq); |
1941 | tmp_seq++; | |
1942 | ||
1943 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1944 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1945 | bfd_make_writable (abfd); |
1946 | ||
1947 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1948 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1949 | |
1950 | symptr = 0; | |
1579bae1 | 1951 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
1952 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
1953 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1954 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 1955 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 | 1956 | |
99ad8390 NC |
1957 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
1958 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 1959 | id4->contents = d4; |
99ad8390 | 1960 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 | 1961 | |
99ad8390 NC |
1962 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
1963 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 1964 | id5->contents = d5; |
99ad8390 | 1965 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 1966 | |
d643799d | 1967 | len = strlen (dll_filename) + 1; |
252b5132 | 1968 | if (len & 1) |
d643799d | 1969 | len++; |
252b5132 | 1970 | bfd_set_section_size (abfd, id7, len); |
1579bae1 | 1971 | d7 = xmalloc (len); |
252b5132 | 1972 | id7->contents = d7; |
47639182 | 1973 | strcpy ((char *) d7, dll_filename); |
e916811a CF |
1974 | /* If len was odd, the above |
1975 | strcpy leaves behind an undefined byte. That is harmless, | |
1976 | but we set it to 0 just so the binary dumps are pretty. */ | |
1977 | d7[len - 1] = 0; | |
252b5132 RH |
1978 | |
1979 | bfd_set_symtab (abfd, symtab, symptr); | |
1980 | ||
99ad8390 NC |
1981 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
1982 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
252b5132 RH |
1983 | bfd_set_section_contents (abfd, id7, d7, 0, len); |
1984 | ||
1985 | bfd_make_readable (abfd); | |
1986 | return abfd; | |
1987 | } | |
1988 | ||
775cabad NC |
1989 | /* .text |
1990 | .global _function | |
1991 | .global ___imp_function | |
1992 | .global __imp__function | |
1993 | _function: | |
1994 | jmp *__imp__function: | |
b7a26f91 | 1995 | |
775cabad NC |
1996 | .section idata$7 |
1997 | .long __head_my_dll | |
b7a26f91 | 1998 | |
775cabad NC |
1999 | .section .idata$5 |
2000 | ___imp_function: | |
2001 | __imp__function: | |
2002 | iat? | |
2003 | .section .idata$4 | |
2004 | iat? | |
2005 | .section .idata$6 | |
2006 | ID<ordinal>: | |
2007 | .short <hint> | |
2008 | .asciz "function" xlate? (add underscore, kill at) */ | |
2009 | ||
e916811a | 2010 | static const unsigned char jmp_ix86_bytes[] = |
775cabad | 2011 | { |
252b5132 RH |
2012 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
2013 | }; | |
2014 | ||
775cabad NC |
2015 | /* _function: |
2016 | mov.l ip+8,r0 | |
2017 | mov.l @r0,r0 | |
2018 | jmp @r0 | |
2019 | nop | |
2020 | .dw __imp_function */ | |
344a211f | 2021 | |
e916811a | 2022 | static const unsigned char jmp_sh_bytes[] = |
775cabad | 2023 | { |
344a211f NC |
2024 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
2025 | }; | |
2026 | ||
775cabad NC |
2027 | /* _function: |
2028 | lui $t0,<high:__imp_function> | |
2029 | lw $t0,<low:__imp_function> | |
2030 | jr $t0 | |
2031 | nop */ | |
344a211f | 2032 | |
e916811a | 2033 | static const unsigned char jmp_mips_bytes[] = |
775cabad | 2034 | { |
344a211f NC |
2035 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
2036 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
2037 | }; | |
252b5132 | 2038 | |
e916811a | 2039 | static const unsigned char jmp_arm_bytes[] = |
53baae48 NC |
2040 | { |
2041 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
2042 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
2043 | 0, 0, 0, 0 | |
2044 | }; | |
2045 | ||
2046 | ||
252b5132 | 2047 | static bfd * |
54727719 | 2048 | make_one (def_file_export *exp, bfd *parent, bfd_boolean include_jmp_stub) |
252b5132 RH |
2049 | { |
2050 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 2051 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
2052 | int len; |
2053 | char *oname; | |
2054 | bfd *abfd; | |
e916811a | 2055 | const unsigned char *jmp_bytes = NULL; |
f0c87f88 | 2056 | int jmp_byte_count = 0; |
c6c37250 | 2057 | |
54727719 NC |
2058 | /* Include the jump stub section only if it is needed. A jump |
2059 | stub is needed if the symbol being imported <sym> is a function | |
2060 | symbol and there is at least one undefined reference to that | |
2061 | symbol. In other words, if all the import references to <sym> are | |
2062 | explicitly through _declspec(dllimport) then the jump stub is not | |
2063 | needed. */ | |
2064 | if (include_jmp_stub) | |
c6c37250 | 2065 | { |
54727719 NC |
2066 | switch (pe_details->pe_arch) |
2067 | { | |
2068 | case PE_ARCH_i386: | |
2069 | jmp_bytes = jmp_ix86_bytes; | |
2070 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
2071 | break; | |
2072 | case PE_ARCH_sh: | |
2073 | jmp_bytes = jmp_sh_bytes; | |
2074 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
2075 | break; | |
2076 | case PE_ARCH_mips: | |
2077 | jmp_bytes = jmp_mips_bytes; | |
2078 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
2079 | break; | |
2080 | case PE_ARCH_arm: | |
2081 | case PE_ARCH_arm_epoc: | |
2082 | case PE_ARCH_arm_wince: | |
2083 | jmp_bytes = jmp_arm_bytes; | |
2084 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
2085 | break; | |
2086 | default: | |
2087 | abort (); | |
2088 | } | |
c6c37250 | 2089 | } |
252b5132 | 2090 | |
1579bae1 | 2091 | oname = xmalloc (20); |
252b5132 RH |
2092 | sprintf (oname, "d%06d.o", tmp_seq); |
2093 | tmp_seq++; | |
2094 | ||
2095 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2096 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2097 | bfd_make_writable (abfd); |
2098 | ||
2099 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2100 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2101 | |
2102 | symptr = 0; | |
17299ac7 NC |
2103 | symtab = xmalloc (12 * sizeof (asymbol *)); |
2104 | ||
2105 | tx = quick_section (abfd, ".text", SEC_CODE | SEC_HAS_CONTENTS | SEC_READONLY, 2); | |
252b5132 RH |
2106 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); |
2107 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2108 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
2109 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 2110 | |
c9e38879 NC |
2111 | if (*exp->internal_name == '@') |
2112 | { | |
1579bae1 AM |
2113 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2114 | BSF_GLOBAL, 0); | |
54727719 | 2115 | if (include_jmp_stub) |
4b7f0676 | 2116 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); |
00479ba8 | 2117 | quick_symbol (abfd, "__imp_", exp->internal_name, "", id5, |
1579bae1 | 2118 | BSF_GLOBAL, 0); |
c9e38879 NC |
2119 | /* Fastcall applies only to functions, |
2120 | so no need for auto-import symbol. */ | |
2121 | } | |
2122 | else | |
2123 | { | |
4b7f0676 NC |
2124 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2125 | BSF_GLOBAL, 0); | |
54727719 | 2126 | if (include_jmp_stub) |
1579bae1 AM |
2127 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
2128 | BSF_GLOBAL, 0); | |
00479ba8 | 2129 | quick_symbol (abfd, "__imp_", U (""), exp->internal_name, id5, |
1579bae1 | 2130 | BSF_GLOBAL, 0); |
c9e38879 | 2131 | /* Symbol to reference ord/name of imported |
1579bae1 | 2132 | data symbol, used to implement auto-import. */ |
c9e38879 | 2133 | if (exp->flag_data) |
17f73277 | 2134 | quick_symbol (abfd, "__nm_", U (""), exp->internal_name, id6, |
1579bae1 | 2135 | BSF_GLOBAL,0); |
c9e38879 | 2136 | } |
870df5dc | 2137 | if (pe_dll_compat_implib) |
17f73277 | 2138 | quick_symbol (abfd, "___imp_", exp->internal_name, "", id5, |
1579bae1 | 2139 | BSF_GLOBAL, 0); |
252b5132 | 2140 | |
54727719 | 2141 | if (include_jmp_stub) |
775cabad NC |
2142 | { |
2143 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1579bae1 | 2144 | td = xmalloc (jmp_byte_count); |
775cabad NC |
2145 | tx->contents = td; |
2146 | memcpy (td, jmp_bytes, jmp_byte_count); | |
2147 | ||
2148 | switch (pe_details->pe_arch) | |
2149 | { | |
2150 | case PE_ARCH_i386: | |
591a748a NC |
2151 | #ifdef pe_use_x86_64 |
2152 | quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2); | |
2153 | #else | |
17299ac7 NC |
2154 | /* Mark this object as SAFESEH compatible. */ |
2155 | quick_symbol (abfd, "", "@feat.00", "", bfd_abs_section_ptr, | |
2156 | BSF_LOCAL, 1); | |
591a748a NC |
2157 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); |
2158 | #endif | |
775cabad NC |
2159 | break; |
2160 | case PE_ARCH_sh: | |
2161 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
2162 | break; | |
2163 | case PE_ARCH_mips: | |
2164 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
2165 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
2166 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
2167 | break; | |
53baae48 | 2168 | case PE_ARCH_arm: |
7148cc28 NC |
2169 | case PE_ARCH_arm_epoc: |
2170 | case PE_ARCH_arm_wince: | |
53baae48 NC |
2171 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
2172 | break; | |
775cabad NC |
2173 | default: |
2174 | abort (); | |
2175 | } | |
2176 | save_relocs (tx); | |
2177 | } | |
54727719 NC |
2178 | else |
2179 | bfd_set_section_size (abfd, tx, 0); | |
252b5132 RH |
2180 | |
2181 | bfd_set_section_size (abfd, id7, 4); | |
1579bae1 | 2182 | d7 = xmalloc (4); |
252b5132 RH |
2183 | id7->contents = d7; |
2184 | memset (d7, 0, 4); | |
4b7f0676 | 2185 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
2186 | save_relocs (id7); |
2187 | ||
99ad8390 NC |
2188 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
2189 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 2190 | id5->contents = d5; |
99ad8390 | 2191 | memset (d5, 0, PE_IDATA5_SIZE); |
775cabad | 2192 | |
252b5132 RH |
2193 | if (exp->flag_noname) |
2194 | { | |
2195 | d5[0] = exp->ordinal; | |
2196 | d5[1] = exp->ordinal >> 8; | |
99ad8390 | 2197 | d5[PE_IDATA5_SIZE - 1] = 0x80; |
252b5132 RH |
2198 | } |
2199 | else | |
2200 | { | |
2201 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2202 | save_relocs (id5); | |
2203 | } | |
2204 | ||
99ad8390 NC |
2205 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2206 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 2207 | id4->contents = d4; |
99ad8390 | 2208 | memset (d4, 0, PE_IDATA4_SIZE); |
775cabad | 2209 | |
252b5132 RH |
2210 | if (exp->flag_noname) |
2211 | { | |
c2a94a7a DD |
2212 | d4[0] = exp->ordinal; |
2213 | d4[1] = exp->ordinal >> 8; | |
99ad8390 | 2214 | d4[PE_IDATA4_SIZE - 1] = 0x80; |
252b5132 RH |
2215 | } |
2216 | else | |
2217 | { | |
2218 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2219 | save_relocs (id4); | |
2220 | } | |
2221 | ||
2222 | if (exp->flag_noname) | |
2223 | { | |
2224 | len = 0; | |
2225 | bfd_set_section_size (abfd, id6, 0); | |
2226 | } | |
2227 | else | |
2228 | { | |
e916811a | 2229 | /* { short, asciz } */ |
7fcab871 KT |
2230 | if (exp->its_name) |
2231 | len = 2 + strlen (exp->its_name) + 1; | |
2232 | else | |
2233 | len = 2 + strlen (exp->name) + 1; | |
252b5132 RH |
2234 | if (len & 1) |
2235 | len++; | |
2236 | bfd_set_section_size (abfd, id6, len); | |
1579bae1 | 2237 | d6 = xmalloc (len); |
252b5132 RH |
2238 | id6->contents = d6; |
2239 | memset (d6, 0, len); | |
2240 | d6[0] = exp->hint & 0xff; | |
2241 | d6[1] = exp->hint >> 8; | |
7fcab871 KT |
2242 | if (exp->its_name) |
2243 | strcpy ((char*) d6 + 2, exp->its_name); | |
2244 | else | |
2245 | strcpy ((char *) d6 + 2, exp->name); | |
252b5132 RH |
2246 | } |
2247 | ||
2248 | bfd_set_symtab (abfd, symtab, symptr); | |
2249 | ||
54727719 NC |
2250 | if (include_jmp_stub) |
2251 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); | |
252b5132 | 2252 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
99ad8390 NC |
2253 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
2254 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
252b5132 RH |
2255 | if (!exp->flag_noname) |
2256 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
2257 | ||
2258 | bfd_make_readable (abfd); | |
2259 | return abfd; | |
2260 | } | |
2261 | ||
9382254d KT |
2262 | static bfd * |
2263 | make_singleton_name_imp (const char *import, bfd *parent) | |
2264 | { | |
2265 | /* Name thunks go to idata$4. */ | |
2266 | asection *id5; | |
2267 | unsigned char *d5; | |
2268 | char *oname; | |
2269 | bfd *abfd; | |
2270 | ||
2271 | oname = xmalloc (20); | |
2272 | sprintf (oname, "nmimp%06d.o", tmp_seq2); | |
2273 | tmp_seq2++; | |
2274 | ||
2275 | abfd = bfd_create (oname, parent); | |
2276 | bfd_find_target (pe_details->object_target, abfd); | |
2277 | bfd_make_writable (abfd); | |
2278 | ||
2279 | bfd_set_format (abfd, bfd_object); | |
2280 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2281 | ||
2282 | symptr = 0; | |
2283 | symtab = xmalloc (3 * sizeof (asymbol *)); | |
2284 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
17f73277 | 2285 | quick_symbol (abfd, "__imp_", import, "", id5, BSF_GLOBAL, 0); |
9382254d KT |
2286 | |
2287 | /* We need space for the real thunk and for the null terminator. */ | |
2288 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE * 2); | |
2289 | d5 = xmalloc (PE_IDATA5_SIZE * 2); | |
2290 | id5->contents = d5; | |
2291 | memset (d5, 0, PE_IDATA5_SIZE * 2); | |
2292 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
2293 | save_relocs (id5); | |
2294 | ||
2295 | bfd_set_symtab (abfd, symtab, symptr); | |
2296 | ||
2297 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA4_SIZE * 2); | |
2298 | ||
2299 | bfd_make_readable (abfd); | |
2300 | return abfd; | |
2301 | } | |
2302 | ||
b044cda1 | 2303 | static bfd * |
1579bae1 | 2304 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2305 | { |
775cabad | 2306 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2307 | asection *id4; |
2308 | unsigned char *d4; | |
2309 | char *oname; | |
2310 | bfd *abfd; | |
2311 | ||
1579bae1 | 2312 | oname = xmalloc (20); |
b044cda1 CW |
2313 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2314 | tmp_seq++; | |
2315 | ||
2316 | abfd = bfd_create (oname, parent); | |
2317 | bfd_find_target (pe_details->object_target, abfd); | |
2318 | bfd_make_writable (abfd); | |
2319 | ||
2320 | bfd_set_format (abfd, bfd_object); | |
2321 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2322 | ||
2323 | symptr = 0; | |
1579bae1 | 2324 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 | 2325 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
17f73277 KT |
2326 | quick_symbol (abfd, "__nm_thnk_", import, "", id4, BSF_GLOBAL, 0); |
2327 | quick_symbol (abfd, "__nm_", import, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2328 | |
4e986257 CF |
2329 | /* We need space for the real thunk and for the null terminator. */ |
2330 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE * 2); | |
2331 | d4 = xmalloc (PE_IDATA4_SIZE * 2); | |
b044cda1 | 2332 | id4->contents = d4; |
4e986257 | 2333 | memset (d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2334 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2335 | save_relocs (id4); | |
2336 | ||
2337 | bfd_set_symtab (abfd, symtab, symptr); | |
2338 | ||
4e986257 | 2339 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2340 | |
2341 | bfd_make_readable (abfd); | |
2342 | return abfd; | |
2343 | } | |
2344 | ||
2345 | static char * | |
1579bae1 | 2346 | make_import_fixup_mark (arelent *rel) |
b044cda1 | 2347 | { |
775cabad | 2348 | /* We convert reloc to symbol, for later reference. */ |
b044cda1 CW |
2349 | static int counter; |
2350 | static char *fixup_name = NULL; | |
db09f25b | 2351 | static size_t buffer_len = 0; |
b7a26f91 | 2352 | |
fc0a2244 | 2353 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b7a26f91 | 2354 | |
b044cda1 | 2355 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2356 | struct bfd_link_hash_entry *bh; |
b044cda1 CW |
2357 | |
2358 | if (!fixup_name) | |
2359 | { | |
1579bae1 | 2360 | fixup_name = xmalloc (384); |
b044cda1 CW |
2361 | buffer_len = 384; |
2362 | } | |
2363 | ||
2364 | if (strlen (sym->name) + 25 > buffer_len) | |
b7a26f91 | 2365 | /* Assume 25 chars for "__fu" + counter + "_". If counter is |
b044cda1 | 2366 | bigger than 20 digits long, we've got worse problems than |
775cabad | 2367 | overflowing this buffer... */ |
b044cda1 CW |
2368 | { |
2369 | free (fixup_name); | |
a35bc64f NC |
2370 | /* New buffer size is length of symbol, plus 25, but |
2371 | then rounded up to the nearest multiple of 128. */ | |
b044cda1 | 2372 | buffer_len = ((strlen (sym->name) + 25) + 127) & ~127; |
1579bae1 | 2373 | fixup_name = xmalloc (buffer_len); |
b044cda1 | 2374 | } |
b7a26f91 | 2375 | |
b044cda1 CW |
2376 | sprintf (fixup_name, "__fu%d_%s", counter++, sym->name); |
2377 | ||
fe213ce2 | 2378 | bh = NULL; |
b7a26f91 | 2379 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2380 | current_sec, /* sym->section, */ |
b34976b6 | 2381 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 | 2382 | |
b044cda1 CW |
2383 | return fixup_name; |
2384 | } | |
2385 | ||
53baae48 | 2386 | /* .section .idata$2 |
775cabad NC |
2387 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2388 | .long 0 | |
2389 | .long 0 | |
2390 | .rva __my_dll_iname (name of dll) | |
2391 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2392 | |
2393 | static bfd * | |
1579bae1 AM |
2394 | make_import_fixup_entry (const char *name, |
2395 | const char *fixup_name, | |
91d6fa6a | 2396 | const char *symname, |
1579bae1 | 2397 | bfd *parent) |
b044cda1 | 2398 | { |
53baae48 NC |
2399 | asection *id2; |
2400 | unsigned char *d2; | |
b044cda1 CW |
2401 | char *oname; |
2402 | bfd *abfd; | |
2403 | ||
1579bae1 | 2404 | oname = xmalloc (20); |
b044cda1 CW |
2405 | sprintf (oname, "fu%06d.o", tmp_seq); |
2406 | tmp_seq++; | |
2407 | ||
2408 | abfd = bfd_create (oname, parent); | |
2409 | bfd_find_target (pe_details->object_target, abfd); | |
2410 | bfd_make_writable (abfd); | |
2411 | ||
2412 | bfd_set_format (abfd, bfd_object); | |
2413 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2414 | ||
2415 | symptr = 0; | |
1579bae1 | 2416 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2417 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2418 | |
17f73277 | 2419 | quick_symbol (abfd, "__nm_thnk_", name, "", UNDSEC, BSF_GLOBAL, 0); |
91d6fa6a | 2420 | quick_symbol (abfd, U (""), symname, "_iname", UNDSEC, BSF_GLOBAL, 0); |
1b610c93 | 2421 | /* For relocator v2 we have to use the .idata$5 element and not |
9382254d KT |
2422 | fixup_name. */ |
2423 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
17f73277 | 2424 | quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0); |
9382254d KT |
2425 | else |
2426 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2427 | |
53baae48 NC |
2428 | bfd_set_section_size (abfd, id2, 20); |
2429 | d2 = xmalloc (20); | |
2430 | id2->contents = d2; | |
2431 | memset (d2, 0, 20); | |
b044cda1 CW |
2432 | |
2433 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2434 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2435 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2436 | save_relocs (id2); |
b044cda1 CW |
2437 | |
2438 | bfd_set_symtab (abfd, symtab, symptr); | |
2439 | ||
53baae48 | 2440 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2441 | |
2442 | bfd_make_readable (abfd); | |
2443 | return abfd; | |
2444 | } | |
2445 | ||
2fa9fc65 NC |
2446 | /* .section .rdata_runtime_pseudo_reloc |
2447 | .long addend | |
2448 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2449 | ||
2450 | static bfd * | |
1579bae1 AM |
2451 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2452 | const char *fixup_name, | |
6cb442d3 KT |
2453 | bfd_vma addend ATTRIBUTE_UNUSED, |
2454 | bfd_vma bitsize, | |
1579bae1 | 2455 | bfd *parent) |
2fa9fc65 NC |
2456 | { |
2457 | asection *rt_rel; | |
2458 | unsigned char *rt_rel_d; | |
2459 | char *oname; | |
2460 | bfd *abfd; | |
1579bae1 | 2461 | oname = xmalloc (20); |
2fa9fc65 NC |
2462 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2463 | tmp_seq++; | |
2464 | ||
2465 | abfd = bfd_create (oname, parent); | |
2466 | bfd_find_target (pe_details->object_target, abfd); | |
2467 | bfd_make_writable (abfd); | |
2468 | ||
2469 | bfd_set_format (abfd, bfd_object); | |
2470 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2471 | ||
2472 | symptr = 0; | |
acac4c69 KT |
2473 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2474 | { | |
2475 | symtab = xmalloc ((runtime_pseudp_reloc_v2_init ? 3 : 6) * sizeof (asymbol *)); | |
2476 | } | |
2477 | else | |
2478 | { | |
2479 | symtab = xmalloc (2 * sizeof (asymbol *)); | |
2480 | } | |
1579bae1 AM |
2481 | rt_rel = quick_section (abfd, ".rdata_runtime_pseudo_reloc", |
2482 | SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2483 | |
2484 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2485 | ||
6cb442d3 KT |
2486 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2487 | { | |
2488 | size_t size = 12; | |
2489 | if (! runtime_pseudp_reloc_v2_init) | |
2490 | { | |
2491 | size += 12; | |
2492 | runtime_pseudp_reloc_v2_init = 1; | |
2493 | } | |
17f73277 | 2494 | quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0); |
6cb442d3 KT |
2495 | |
2496 | bfd_set_section_size (abfd, rt_rel, size); | |
2497 | rt_rel_d = xmalloc (size); | |
2498 | rt_rel->contents = rt_rel_d; | |
2499 | memset (rt_rel_d, 0, size); | |
2500 | quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1); | |
2501 | quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2); | |
2502 | bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4)); | |
2503 | if (size != 12) | |
2504 | bfd_put_32 (abfd, 1, rt_rel_d + 8); | |
2505 | save_relocs (rt_rel); | |
2506 | ||
2507 | bfd_set_symtab (abfd, symtab, symptr); | |
2508 | ||
2509 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, size); | |
2510 | } | |
2511 | else | |
2512 | { | |
2513 | bfd_set_section_size (abfd, rt_rel, 8); | |
2514 | rt_rel_d = xmalloc (8); | |
2515 | rt_rel->contents = rt_rel_d; | |
2516 | memset (rt_rel_d, 0, 8); | |
2fa9fc65 | 2517 | |
6cb442d3 KT |
2518 | bfd_put_32 (abfd, addend, rt_rel_d); |
2519 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2fa9fc65 | 2520 | |
6cb442d3 | 2521 | save_relocs (rt_rel); |
2fa9fc65 | 2522 | |
6cb442d3 | 2523 | bfd_set_symtab (abfd, symtab, symptr); |
2fa9fc65 | 2524 | |
6cb442d3 KT |
2525 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); |
2526 | } | |
2fa9fc65 NC |
2527 | bfd_make_readable (abfd); |
2528 | return abfd; | |
2529 | } | |
2530 | ||
2531 | /* .section .rdata | |
a35bc64f | 2532 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2533 | |
2534 | static bfd * | |
1579bae1 | 2535 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2536 | { |
2537 | asection *extern_rt_rel; | |
2538 | unsigned char *extern_rt_rel_d; | |
2539 | char *oname; | |
2540 | bfd *abfd; | |
2541 | ||
1579bae1 | 2542 | oname = xmalloc (20); |
2fa9fc65 NC |
2543 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2544 | tmp_seq++; | |
2545 | ||
2546 | abfd = bfd_create (oname, parent); | |
2547 | bfd_find_target (pe_details->object_target, abfd); | |
2548 | bfd_make_writable (abfd); | |
2549 | ||
2550 | bfd_set_format (abfd, bfd_object); | |
2551 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2552 | ||
2553 | symptr = 0; | |
1579bae1 | 2554 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2555 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2556 | ||
00479ba8 | 2557 | quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC, |
1579bae1 | 2558 | BSF_NO_FLAGS, 0); |
2fa9fc65 | 2559 | |
9382254d KT |
2560 | bfd_set_section_size (abfd, extern_rt_rel, PE_IDATA5_SIZE); |
2561 | extern_rt_rel_d = xmalloc (PE_IDATA5_SIZE); | |
2fa9fc65 NC |
2562 | extern_rt_rel->contents = extern_rt_rel_d; |
2563 | ||
2564 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2565 | save_relocs (extern_rt_rel); | |
2566 | ||
2567 | bfd_set_symtab (abfd, symtab, symptr); | |
2568 | ||
9382254d | 2569 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2570 | |
2571 | bfd_make_readable (abfd); | |
2572 | return abfd; | |
2573 | } | |
2574 | ||
b044cda1 | 2575 | void |
6cb442d3 | 2576 | pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend) |
b044cda1 CW |
2577 | { |
2578 | char buf[300]; | |
fc0a2244 | 2579 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2580 | struct bfd_link_hash_entry *name_thunk_sym; |
9382254d | 2581 | struct bfd_link_hash_entry *name_imp_sym; |
db09f25b | 2582 | const char *name = sym->name; |
b044cda1 | 2583 | char *fixup_name = make_import_fixup_mark (rel); |
2fa9fc65 | 2584 | bfd *b; |
9382254d KT |
2585 | int need_import_table = 1; |
2586 | ||
17f73277 | 2587 | sprintf (buf, "__imp_%s", name); |
9382254d | 2588 | name_imp_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); |
b044cda1 | 2589 | |
17f73277 | 2590 | sprintf (buf, "__nm_thnk_%s", name); |
b044cda1 CW |
2591 | |
2592 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
2593 | ||
9382254d KT |
2594 | /* For version 2 pseudo relocation we don't need to add an import |
2595 | if the import symbol is already present. */ | |
2596 | if (link_info.pei386_runtime_pseudo_reloc == 2 | |
2597 | && name_imp_sym | |
2598 | && name_imp_sym->type == bfd_link_hash_defined) | |
2599 | need_import_table = 0; | |
2600 | ||
2601 | if (need_import_table == 1 | |
2602 | && (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined)) | |
b044cda1 | 2603 | { |
91d6fa6a | 2604 | b = make_singleton_name_thunk (name, link_info.output_bfd); |
b044cda1 CW |
2605 | add_bfd_to_link (b, b->filename, &link_info); |
2606 | ||
9382254d KT |
2607 | /* If we ever use autoimport, we have to cast text section writable. |
2608 | But not for version 2. */ | |
2609 | if (link_info.pei386_runtime_pseudo_reloc != 2) | |
2610 | { | |
2611 | config.text_read_only = FALSE; | |
2612 | link_info.output_bfd->flags &= ~WP_TEXT; | |
2613 | } | |
2614 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
2615 | { | |
2616 | b = make_singleton_name_imp (name, link_info.output_bfd); | |
2617 | add_bfd_to_link (b, b->filename, &link_info); | |
2618 | } | |
b044cda1 CW |
2619 | } |
2620 | ||
9382254d KT |
2621 | if ((addend == 0 || link_info.pei386_runtime_pseudo_reloc) |
2622 | && need_import_table == 1) | |
2fa9fc65 NC |
2623 | { |
2624 | extern char * pe_data_import_dll; | |
91d6fa6a | 2625 | char * symname = pe_data_import_dll ? pe_data_import_dll : "unknown"; |
aa3d9aba | 2626 | |
91d6fa6a | 2627 | b = make_import_fixup_entry (name, fixup_name, symname, |
f13a99db | 2628 | link_info.output_bfd); |
2fa9fc65 NC |
2629 | add_bfd_to_link (b, b->filename, &link_info); |
2630 | } | |
2631 | ||
6cb442d3 KT |
2632 | if ((link_info.pei386_runtime_pseudo_reloc != 0 && addend != 0) |
2633 | || link_info.pei386_runtime_pseudo_reloc == 2) | |
2634 | { | |
2635 | if (pe_dll_extra_pe_debug) | |
2636 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2637 | fixup_name, (int) addend); | |
2638 | ||
2639 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, rel->howto->bitsize, | |
2640 | link_info.output_bfd); | |
2641 | add_bfd_to_link (b, b->filename, &link_info); | |
2642 | ||
2643 | if (runtime_pseudo_relocs_created == 0) | |
2644 | { | |
2645 | b = pe_create_runtime_relocator_reference (link_info.output_bfd); | |
2646 | add_bfd_to_link (b, b->filename, &link_info); | |
2647 | } | |
2648 | runtime_pseudo_relocs_created++; | |
2649 | } | |
2650 | else if (addend != 0) | |
2651 | { | |
2652 | einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"), | |
2653 | s->owner, s, rel->address, sym->name); | |
2654 | einfo ("%X"); | |
2655 | } | |
b044cda1 CW |
2656 | } |
2657 | ||
2658 | ||
252b5132 | 2659 | void |
e1c37eb5 | 2660 | pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info) |
252b5132 RH |
2661 | { |
2662 | int i; | |
2663 | bfd *ar_head; | |
2664 | bfd *ar_tail; | |
2665 | bfd *outarch; | |
e1c37eb5 | 2666 | bfd *ibfd; |
252b5132 RH |
2667 | bfd *head = 0; |
2668 | ||
5aaace27 | 2669 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2670 | dll_symname = xstrdup (dll_filename); |
d643799d | 2671 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2672 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2673 | dll_symname[i] = '_'; |
2674 | ||
bb14f524 | 2675 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2676 | |
2677 | outarch = bfd_openw (impfilename, 0); | |
2678 | ||
2679 | if (!outarch) | |
2680 | { | |
2681 | /* xgettext:c-format */ | |
2682 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
2683 | return; | |
2684 | } | |
2685 | ||
2686 | /* xgettext:c-format */ | |
63d85248 | 2687 | info_msg (_("Creating library file: %s\n"), impfilename); |
9382254d | 2688 | |
252b5132 RH |
2689 | bfd_set_format (outarch, bfd_archive); |
2690 | outarch->has_armap = 1; | |
2691 | ||
5cc18311 | 2692 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2693 | ar_head = make_head (outarch); |
252b5132 | 2694 | |
e1c37eb5 DK |
2695 | /* Iterate the input BFDs, looking for exclude-modules-for-implib. */ |
2696 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
2697 | { | |
2698 | /* Iterate the exclude list. */ | |
2699 | struct exclude_list_struct *ex; | |
2700 | char found; | |
2701 | for (ex = excludes, found = 0; ex && !found; ex = ex->next) | |
2702 | { | |
2703 | if (ex->type != EXCLUDEFORIMPLIB) | |
2704 | continue; | |
2705 | found = (strcmp (ex->string, ibfd->filename) == 0); | |
2706 | } | |
2707 | /* If it matched, we must open a fresh BFD for it (the original | |
2708 | input BFD is still needed for the DLL's final link) and add | |
2709 | it into the archive member chain. */ | |
2710 | if (found) | |
2711 | { | |
9382254d | 2712 | bfd *newbfd = bfd_openr (ibfd->my_archive |
e1c37eb5 DK |
2713 | ? ibfd->my_archive->filename : ibfd->filename, NULL); |
2714 | if (!newbfd) | |
2715 | { | |
2716 | einfo (_("%Xbfd_openr %s: %E\n"), ibfd->filename); | |
2717 | return; | |
2718 | } | |
2719 | if (ibfd->my_archive) | |
2720 | { | |
2721 | /* Must now iterate through archive until we find the | |
2722 | required member. A minor shame that we'll open the | |
2723 | archive once per member that we require from it, and | |
2724 | leak those archive bfds rather than reuse them. */ | |
2725 | bfd *arbfd = newbfd; | |
2726 | if (!bfd_check_format_matches (arbfd, bfd_archive, NULL)) | |
2727 | { | |
9382254d | 2728 | einfo (_("%X%s(%s): can't find member in non-archive file"), |
e1c37eb5 DK |
2729 | ibfd->my_archive->filename, ibfd->filename); |
2730 | return; | |
2731 | } | |
2732 | newbfd = NULL; | |
2733 | while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0) | |
2734 | { | |
2735 | if (strcmp (newbfd->filename, ibfd->filename) == 0) | |
2736 | break; | |
2737 | } | |
2738 | if (!newbfd) | |
2739 | { | |
9382254d | 2740 | einfo (_("%X%s(%s): can't find member in archive"), |
e1c37eb5 DK |
2741 | ibfd->my_archive->filename, ibfd->filename); |
2742 | return; | |
2743 | } | |
2744 | } | |
2745 | newbfd->archive_next = head; | |
2746 | head = newbfd; | |
2747 | } | |
2748 | } | |
2749 | ||
d643799d | 2750 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2751 | { |
86b1cc60 | 2752 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2753 | char *internal = def->exports[i].internal_name; |
2754 | bfd *n; | |
775cabad | 2755 | |
9382254d | 2756 | /* Don't add PRIVATE entries to import lib. */ |
ee31fbd0 NC |
2757 | if (pe_def_file->exports[i].flag_private) |
2758 | continue; | |
252b5132 | 2759 | def->exports[i].internal_name = def->exports[i].name; |
54727719 NC |
2760 | n = make_one (def->exports + i, outarch, |
2761 | ! (def->exports + i)->flag_data); | |
cc481421 | 2762 | n->archive_next = head; |
252b5132 RH |
2763 | head = n; |
2764 | def->exports[i].internal_name = internal; | |
2765 | } | |
2766 | ||
c6c37250 DD |
2767 | ar_tail = make_tail (outarch); |
2768 | ||
2769 | if (ar_head == NULL || ar_tail == NULL) | |
2770 | return; | |
2771 | ||
86b1cc60 | 2772 | /* Now stick them all into the archive. */ |
cc481421 AM |
2773 | ar_head->archive_next = head; |
2774 | ar_tail->archive_next = ar_head; | |
252b5132 RH |
2775 | head = ar_tail; |
2776 | ||
2777 | if (! bfd_set_archive_head (outarch, head)) | |
36230712 | 2778 | einfo ("%Xbfd_set_archive_head: %E\n"); |
5cc18311 | 2779 | |
252b5132 | 2780 | if (! bfd_close (outarch)) |
36230712 | 2781 | einfo ("%Xbfd_close %s: %E\n", impfilename); |
252b5132 RH |
2782 | |
2783 | while (head != NULL) | |
2784 | { | |
cc481421 | 2785 | bfd *n = head->archive_next; |
252b5132 RH |
2786 | bfd_close (head); |
2787 | head = n; | |
2788 | } | |
2789 | } | |
2790 | ||
8a9eab9b KT |
2791 | static struct bfd_link_hash_entry *found_sym; |
2792 | ||
2793 | static bfd_boolean | |
2794 | pe_undef_alias_cdecl_match (struct bfd_link_hash_entry *h, void *inf) | |
2795 | { | |
2796 | int sl; | |
2797 | char *string = inf; | |
2798 | const char *hs = h->root.string; | |
2799 | ||
2800 | sl = strlen (string); | |
2801 | if (h->type == bfd_link_hash_undefined | |
17f73277 KT |
2802 | && ((*hs == '@' && (!pe_details->underscored || *string == '_') |
2803 | && strncmp (hs + 1, string + (pe_details->underscored != 0), | |
2804 | sl - (pe_details->underscored != 0)) == 0) | |
8a9eab9b KT |
2805 | || strncmp (hs, string, sl) == 0) |
2806 | && h->root.string[sl] == '@') | |
2807 | { | |
2808 | found_sym = h; | |
2809 | return FALSE; | |
2810 | } | |
2811 | return TRUE; | |
2812 | } | |
2813 | ||
2814 | static struct bfd_link_hash_entry * | |
2815 | pe_find_cdecl_alias_match (char *name) | |
2816 | { | |
2817 | found_sym = 0; | |
2818 | bfd_link_hash_traverse (link_info.hash, pe_undef_alias_cdecl_match, | |
2819 | (char *) name); | |
2820 | return found_sym; | |
2821 | } | |
2822 | ||
252b5132 | 2823 | static void |
91d6fa6a | 2824 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *linfo) |
252b5132 RH |
2825 | { |
2826 | lang_input_statement_type *fake_file; | |
775cabad | 2827 | |
252b5132 RH |
2828 | fake_file = lang_add_input_file (name, |
2829 | lang_input_file_is_fake_enum, | |
2830 | NULL); | |
2831 | fake_file->the_bfd = abfd; | |
2832 | ldlang_add_file (fake_file); | |
775cabad | 2833 | |
91d6fa6a | 2834 | if (!bfd_link_add_symbols (abfd, linfo)) |
36230712 | 2835 | einfo ("%Xaddsym %s: %E\n", name); |
252b5132 RH |
2836 | } |
2837 | ||
2838 | void | |
91d6fa6a | 2839 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *linfo) |
252b5132 RH |
2840 | { |
2841 | def_file_module *module; | |
775cabad | 2842 | |
d643799d | 2843 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
2844 | |
2845 | if (!pe_def_file) | |
2846 | return; | |
2847 | ||
2848 | for (module = pe_def_file->modules; module; module = module->next) | |
2849 | { | |
2850 | int i, do_this_dll; | |
2851 | ||
2852 | dll_filename = module->name; | |
2853 | dll_symname = xstrdup (module->name); | |
d643799d | 2854 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2855 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2856 | dll_symname[i] = '_'; |
2857 | ||
2858 | do_this_dll = 0; | |
2859 | ||
d643799d | 2860 | for (i = 0; i < pe_def_file->num_imports; i++) |
252b5132 RH |
2861 | if (pe_def_file->imports[i].module == module) |
2862 | { | |
2863 | def_file_export exp; | |
2864 | struct bfd_link_hash_entry *blhe; | |
b34976b6 | 2865 | int lead_at = (*pe_def_file->imports[i].internal_name == '@'); |
86b1cc60 | 2866 | /* See if we need this import. */ |
1579bae1 AM |
2867 | size_t len = strlen (pe_def_file->imports[i].internal_name); |
2868 | char *name = xmalloc (len + 2 + 6); | |
54727719 | 2869 | bfd_boolean include_jmp_stub = FALSE; |
8a9eab9b KT |
2870 | bfd_boolean is_cdecl = FALSE; |
2871 | if (!lead_at && strchr (pe_def_file->imports[i].internal_name, '@') == NULL) | |
2872 | is_cdecl = TRUE; | |
c9e38879 NC |
2873 | |
2874 | if (lead_at) | |
00479ba8 | 2875 | sprintf (name, "%s", |
1579bae1 | 2876 | pe_def_file->imports[i].internal_name); |
c9e38879 | 2877 | else |
1579bae1 AM |
2878 | sprintf (name, "%s%s",U (""), |
2879 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2880 | |
91d6fa6a | 2881 | blhe = bfd_link_hash_lookup (linfo->hash, name, |
b34976b6 | 2882 | FALSE, FALSE, FALSE); |
c9e38879 | 2883 | |
54727719 NC |
2884 | /* Include the jump stub for <sym> only if the <sym> |
2885 | is undefined. */ | |
874c8c99 DD |
2886 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
2887 | { | |
c9e38879 | 2888 | if (lead_at) |
9382254d | 2889 | sprintf (name, "%s%s", "__imp_", |
c9e38879 NC |
2890 | pe_def_file->imports[i].internal_name); |
2891 | else | |
00479ba8 | 2892 | sprintf (name, "%s%s%s", "__imp_", U (""), |
c9e38879 NC |
2893 | pe_def_file->imports[i].internal_name); |
2894 | ||
91d6fa6a | 2895 | blhe = bfd_link_hash_lookup (linfo->hash, name, |
b34976b6 | 2896 | FALSE, FALSE, FALSE); |
874c8c99 | 2897 | } |
54727719 NC |
2898 | else |
2899 | include_jmp_stub = TRUE; | |
2900 | ||
8a9eab9b KT |
2901 | if (is_cdecl && !blhe) |
2902 | { | |
2903 | sprintf (name, "%s%s",U (""), | |
2904 | pe_def_file->imports[i].internal_name); | |
2905 | blhe = pe_find_cdecl_alias_match (name); | |
2906 | include_jmp_stub = TRUE; | |
2907 | } | |
2908 | ||
252b5132 | 2909 | free (name); |
c9e38879 | 2910 | |
252b5132 RH |
2911 | if (blhe && blhe->type == bfd_link_hash_undefined) |
2912 | { | |
2913 | bfd *one; | |
86b1cc60 | 2914 | /* We do. */ |
252b5132 RH |
2915 | if (!do_this_dll) |
2916 | { | |
2917 | bfd *ar_head = make_head (output_bfd); | |
91d6fa6a | 2918 | add_bfd_to_link (ar_head, ar_head->filename, linfo); |
252b5132 RH |
2919 | do_this_dll = 1; |
2920 | } | |
2921 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
2922 | exp.name = pe_def_file->imports[i].name; | |
7fcab871 | 2923 | exp.its_name = pe_def_file->imports[i].its_name; |
252b5132 RH |
2924 | exp.ordinal = pe_def_file->imports[i].ordinal; |
2925 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
2926 | exp.flag_private = 0; | |
2927 | exp.flag_constant = 0; | |
939ba9d0 | 2928 | exp.flag_data = pe_def_file->imports[i].data; |
252b5132 | 2929 | exp.flag_noname = exp.name ? 0 : 1; |
54727719 | 2930 | one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub); |
91d6fa6a | 2931 | add_bfd_to_link (one, one->filename, linfo); |
252b5132 RH |
2932 | } |
2933 | } | |
2934 | if (do_this_dll) | |
2935 | { | |
2936 | bfd *ar_tail = make_tail (output_bfd); | |
91d6fa6a | 2937 | add_bfd_to_link (ar_tail, ar_tail->filename, linfo); |
252b5132 RH |
2938 | } |
2939 | ||
2940 | free (dll_symname); | |
2941 | } | |
2942 | } | |
2943 | ||
775cabad | 2944 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
2945 | IMPORTS directives in the def file. Return TRUE if the file was |
2946 | handled, FALSE if not. */ | |
252b5132 RH |
2947 | |
2948 | static unsigned int | |
1579bae1 | 2949 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
2950 | { |
2951 | unsigned char b[2]; | |
775cabad | 2952 | |
db09f25b AM |
2953 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2954 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 2955 | return b[0] + (b[1] << 8); |
252b5132 RH |
2956 | } |
2957 | ||
2958 | static unsigned int | |
1579bae1 | 2959 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
2960 | { |
2961 | unsigned char b[4]; | |
775cabad | 2962 | |
db09f25b AM |
2963 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2964 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 2965 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2966 | } |
2967 | ||
252b5132 | 2968 | static unsigned int |
1579bae1 | 2969 | pe_as32 (void *ptr) |
252b5132 RH |
2970 | { |
2971 | unsigned char *b = ptr; | |
775cabad | 2972 | |
d643799d | 2973 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2974 | } |
2975 | ||
b34976b6 | 2976 | bfd_boolean |
1579bae1 | 2977 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
2978 | { |
2979 | bfd *dll; | |
6ca0987a KT |
2980 | bfd_vma pe_header_offset, opthdr_ofs, num_entries, i; |
2981 | bfd_vma export_rva, export_size, nsections, secptr, expptr; | |
2982 | bfd_vma exp_funcbase; | |
47639182 AM |
2983 | unsigned char *expdata; |
2984 | char *erva; | |
c7e2358a | 2985 | bfd_vma name_rvas, nexp; |
91d6fa6a | 2986 | const char *dllname; |
939ba9d0 NC |
2987 | /* Initialization with start > end guarantees that is_data |
2988 | will not be set by mistake, and avoids compiler warning. */ | |
6ca0987a KT |
2989 | bfd_vma data_start = 1; |
2990 | bfd_vma data_end = 0; | |
2991 | bfd_vma rdata_start = 1; | |
2992 | bfd_vma rdata_end = 0; | |
2993 | bfd_vma bss_start = 1; | |
2994 | bfd_vma bss_end = 0; | |
252b5132 RH |
2995 | |
2996 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 2997 | the middle of the .rdata section. */ |
c6c37250 | 2998 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
2999 | if (!dll) |
3000 | { | |
36230712 | 3001 | einfo ("%Xopen %s: %E\n", filename); |
b34976b6 | 3002 | return FALSE; |
252b5132 | 3003 | } |
775cabad | 3004 | |
86b1cc60 | 3005 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
3006 | if (!bfd_check_format (dll, bfd_object)) |
3007 | { | |
3008 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
b34976b6 | 3009 | return FALSE; |
252b5132 RH |
3010 | } |
3011 | ||
d0069cab | 3012 | /* Get pe_header, optional header and numbers of directory entries. */ |
252b5132 RH |
3013 | pe_header_offset = pe_get32 (dll, 0x3c); |
3014 | opthdr_ofs = pe_header_offset + 4 + 20; | |
99ad8390 NC |
3015 | #ifdef pe_use_x86_64 |
3016 | num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */ | |
3017 | #else | |
252b5132 | 3018 | num_entries = pe_get32 (dll, opthdr_ofs + 92); |
99ad8390 | 3019 | #endif |
775cabad | 3020 | |
d0069cab TG |
3021 | /* No import or export directory entry. */ |
3022 | if (num_entries < 1) | |
b34976b6 | 3023 | return FALSE; |
775cabad | 3024 | |
99ad8390 NC |
3025 | #ifdef pe_use_x86_64 |
3026 | export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4); | |
3027 | export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4); | |
3028 | #else | |
252b5132 RH |
3029 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
3030 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
99ad8390 | 3031 | #endif |
9382254d | 3032 | |
d0069cab TG |
3033 | /* No export table - nothing to export. */ |
3034 | if (export_size == 0) | |
3035 | return FALSE; | |
3036 | ||
252b5132 RH |
3037 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); |
3038 | secptr = (pe_header_offset + 4 + 20 + | |
3039 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
3040 | expptr = 0; | |
775cabad | 3041 | |
1579bae1 | 3042 | /* Get the rva and size of the export section. */ |
d643799d | 3043 | for (i = 0; i < nsections; i++) |
252b5132 RH |
3044 | { |
3045 | char sname[8]; | |
6ca0987a KT |
3046 | bfd_vma secptr1 = secptr + 40 * i; |
3047 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3048 | bfd_vma vsize = pe_get32 (dll, secptr1 + 16); | |
3049 | bfd_vma fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 3050 | |
db09f25b AM |
3051 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
3052 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 3053 | |
d643799d | 3054 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
3055 | { |
3056 | expptr = fptr + (export_rva - vaddr); | |
3057 | if (export_rva + export_size > vaddr + vsize) | |
3058 | export_size = vsize - (export_rva - vaddr); | |
3059 | break; | |
3060 | } | |
3061 | } | |
3062 | ||
939ba9d0 | 3063 | /* Scan sections and store the base and size of the |
1579bae1 | 3064 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
3065 | for (i = 0; i < nsections; i++) |
3066 | { | |
6ca0987a KT |
3067 | bfd_vma secptr1 = secptr + 40 * i; |
3068 | bfd_vma vsize = pe_get32 (dll, secptr1 + 8); | |
3069 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3070 | bfd_vma flags = pe_get32 (dll, secptr1 + 36); | |
939ba9d0 NC |
3071 | char sec_name[9]; |
3072 | ||
3073 | sec_name[8] = '\0'; | |
3074 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
3075 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
3076 | ||
3077 | if (strcmp(sec_name,".data") == 0) | |
3078 | { | |
3079 | data_start = vaddr; | |
3080 | data_end = vaddr + vsize; | |
3081 | ||
661a32f7 DS |
3082 | if (pe_dll_extra_pe_debug) |
3083 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3084 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3085 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
661a32f7 DS |
3086 | } |
3087 | else if (strcmp(sec_name,".rdata") == 0) | |
3088 | { | |
3089 | rdata_start = vaddr; | |
3090 | rdata_end = vaddr + vsize; | |
3091 | ||
939ba9d0 NC |
3092 | if (pe_dll_extra_pe_debug) |
3093 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3094 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3095 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
1579bae1 | 3096 | } |
939ba9d0 NC |
3097 | else if (strcmp (sec_name,".bss") == 0) |
3098 | { | |
3099 | bss_start = vaddr; | |
3100 | bss_end = vaddr + vsize; | |
3101 | ||
3102 | if (pe_dll_extra_pe_debug) | |
3103 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3104 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3105 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
939ba9d0 NC |
3106 | } |
3107 | } | |
3108 | ||
1579bae1 | 3109 | expdata = xmalloc (export_size); |
db09f25b AM |
3110 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
3111 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 3112 | erva = (char *) expdata - export_rva; |
252b5132 RH |
3113 | |
3114 | if (pe_def_file == 0) | |
d643799d | 3115 | pe_def_file = def_file_empty (); |
252b5132 | 3116 | |
d643799d KH |
3117 | nexp = pe_as32 (expdata + 24); |
3118 | name_rvas = pe_as32 (expdata + 32); | |
939ba9d0 | 3119 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 3120 | |
939ba9d0 NC |
3121 | /* Use internal dll name instead of filename |
3122 | to enable symbolic dll linking. */ | |
91d6fa6a | 3123 | dllname = erva + pe_as32 (expdata + 12); |
939ba9d0 | 3124 | |
a35bc64f NC |
3125 | /* Check to see if the dll has already been added to |
3126 | the definition list and if so return without error. | |
3127 | This avoids multiple symbol definitions. */ | |
91d6fa6a | 3128 | if (def_get_module (pe_def_file, dllname)) |
a35bc64f NC |
3129 | { |
3130 | if (pe_dll_extra_pe_debug) | |
91d6fa6a | 3131 | printf ("%s is already loaded\n", dllname); |
a35bc64f NC |
3132 | return TRUE; |
3133 | } | |
3134 | ||
939ba9d0 | 3135 | /* Iterate through the list of symbols. */ |
d643799d | 3136 | for (i = 0; i < nexp; i++) |
252b5132 | 3137 | { |
939ba9d0 | 3138 | /* Pointer to the names vector. */ |
6ca0987a | 3139 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 3140 | def_file_import *imp; |
1579bae1 | 3141 | /* Pointer to the function address vector. */ |
6ca0987a | 3142 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
939ba9d0 NC |
3143 | int is_data = 0; |
3144 | ||
3145 | /* Skip unwanted symbols, which are | |
3146 | exported in buggy auto-import releases. */ | |
17f73277 | 3147 | if (! CONST_STRNEQ (erva + name_rva, "__nm_")) |
939ba9d0 | 3148 | { |
661a32f7 DS |
3149 | /* is_data is true if the address is in the data, rdata or bss |
3150 | segment. */ | |
939ba9d0 NC |
3151 | is_data = |
3152 | (func_rva >= data_start && func_rva < data_end) | |
661a32f7 | 3153 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
3154 | || (func_rva >= bss_start && func_rva < bss_end); |
3155 | ||
3156 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
91d6fa6a | 3157 | dllname, i, 0, NULL); |
396a2467 | 3158 | /* Mark symbol type. */ |
939ba9d0 | 3159 | imp->data = is_data; |
1579bae1 | 3160 | |
939ba9d0 NC |
3161 | if (pe_dll_extra_pe_debug) |
3162 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
91d6fa6a | 3163 | __FUNCTION__, dllname, erva + name_rva, |
6ca0987a | 3164 | (unsigned long) func_rva, is_data ? "(data)" : ""); |
939ba9d0 | 3165 | } |
252b5132 RH |
3166 | } |
3167 | ||
b34976b6 | 3168 | return TRUE; |
252b5132 RH |
3169 | } |
3170 | ||
88183869 DK |
3171 | void |
3172 | pe_output_file_set_long_section_names (bfd *abfd) | |
3173 | { | |
3174 | if (pe_use_coff_long_section_names < 0) | |
3175 | return; | |
3176 | if (!bfd_coff_set_long_section_names (abfd, pe_use_coff_long_section_names)) | |
3177 | einfo (_("%XError: can't use long section names on this arch\n")); | |
3178 | } | |
3179 | ||
775cabad NC |
3180 | /* These are the main functions, called from the emulation. The first |
3181 | is called after the bfds are read, so we can guess at how much space | |
3182 | we need. The second is called after everything is placed, so we | |
3183 | can put the right values in place. */ | |
252b5132 RH |
3184 | |
3185 | void | |
1579bae1 | 3186 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3187 | { |
c6c37250 | 3188 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3189 | pe_output_file_set_long_section_names (abfd); |
c1711530 | 3190 | process_def_file_and_drectve (abfd, info); |
252b5132 | 3191 | |
1579bae1 | 3192 | if (pe_def_file->num_exports == 0 && !info->shared) |
2b817be1 NC |
3193 | return; |
3194 | ||
252b5132 | 3195 | generate_edata (abfd, info); |
c6c37250 | 3196 | build_filler_bfd (1); |
88183869 | 3197 | pe_output_file_set_long_section_names (filler_bfd); |
c6c37250 DD |
3198 | } |
3199 | ||
3200 | void | |
1579bae1 | 3201 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
3202 | { |
3203 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3204 | pe_output_file_set_long_section_names (abfd); |
c6c37250 | 3205 | build_filler_bfd (0); |
88183869 | 3206 | pe_output_file_set_long_section_names (filler_bfd); |
252b5132 RH |
3207 | } |
3208 | ||
3209 | void | |
1579bae1 | 3210 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3211 | { |
c6c37250 | 3212 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3213 | pe_output_file_set_long_section_names (abfd); |
252b5132 RH |
3214 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3215 | ||
3216 | generate_reloc (abfd, info); | |
3217 | if (reloc_sz > 0) | |
3218 | { | |
3219 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3220 | ||
3221 | /* Resize the sections. */ | |
38975f9e | 3222 | lang_reset_memory_regions (); |
e9ee469a | 3223 | lang_size_sections (NULL, TRUE); |
252b5132 RH |
3224 | |
3225 | /* Redo special stuff. */ | |
3226 | ldemul_after_allocation (); | |
3227 | ||
3228 | /* Do the assignments again. */ | |
e9ee469a | 3229 | lang_do_assignments (); |
252b5132 RH |
3230 | } |
3231 | ||
3232 | fill_edata (abfd, info); | |
3233 | ||
db8acf26 | 3234 | if (info->shared && !info->pie) |
2b817be1 | 3235 | pe_data (abfd)->dll = 1; |
252b5132 RH |
3236 | |
3237 | edata_s->contents = edata_d; | |
3238 | reloc_s->contents = reloc_d; | |
3239 | } | |
c6c37250 DD |
3240 | |
3241 | void | |
1579bae1 | 3242 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
3243 | { |
3244 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3245 | pe_output_file_set_long_section_names (abfd); |
c6c37250 DD |
3246 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3247 | ||
3248 | generate_reloc (abfd, info); | |
3249 | if (reloc_sz > 0) | |
3250 | { | |
3251 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3252 | ||
3253 | /* Resize the sections. */ | |
38975f9e | 3254 | lang_reset_memory_regions (); |
e9ee469a | 3255 | lang_size_sections (NULL, TRUE); |
c6c37250 DD |
3256 | |
3257 | /* Redo special stuff. */ | |
3258 | ldemul_after_allocation (); | |
3259 | ||
3260 | /* Do the assignments again. */ | |
e9ee469a | 3261 | lang_do_assignments (); |
c6c37250 DD |
3262 | } |
3263 | reloc_s->contents = reloc_d; | |
3264 | } | |
ff2bdb9c CF |
3265 | |
3266 | bfd_boolean | |
3267 | pe_bfd_is_dll (bfd *abfd) | |
3268 | { | |
3269 | return (bfd_get_format (abfd) == bfd_object | |
3270 | && obj_pe (abfd) | |
3271 | && pe_data (abfd)->dll); | |
3272 | } |