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