Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
f13a99db | 2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
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 RH |
151 | int pe_dll_export_everything = 0; |
152 | int pe_dll_do_default_excludes = 1; | |
153 | int pe_dll_kill_ats = 0; | |
154 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
155 | int pe_dll_warn_dup_exports = 0; |
156 | int pe_dll_compat_implib = 0; | |
b044cda1 | 157 | int pe_dll_extra_pe_debug = 0; |
ce11ba6c | 158 | int pe_use_nul_prefixed_import_tables = 0; |
88183869 | 159 | int pe_use_coff_long_section_names = -1; |
252b5132 | 160 | |
775cabad | 161 | /* Static variables and types. */ |
252b5132 RH |
162 | |
163 | static bfd_vma image_base; | |
252b5132 | 164 | static bfd *filler_bfd; |
198beae2 | 165 | static struct bfd_section *edata_s, *reloc_s; |
252b5132 | 166 | static unsigned char *edata_d, *reloc_d; |
1069dd8d | 167 | static size_t edata_sz, reloc_sz; |
2fa9fc65 | 168 | static int runtime_pseudo_relocs_created = 0; |
6cb442d3 | 169 | static int runtime_pseudp_reloc_v2_init = 0; |
252b5132 | 170 | |
775cabad | 171 | typedef struct |
5b8273bf | 172 | { |
e916811a | 173 | const char *name; |
5b8273bf NC |
174 | int len; |
175 | } | |
176 | autofilter_entry_type; | |
775cabad NC |
177 | |
178 | typedef struct | |
5b8273bf | 179 | { |
e916811a CF |
180 | const char *target_name; |
181 | const char *object_target; | |
5b8273bf NC |
182 | unsigned int imagebase_reloc; |
183 | int pe_arch; | |
184 | int bfd_arch; | |
185 | bfd_boolean underscored; | |
e916811a | 186 | const autofilter_entry_type* autofilter_symbollist; |
5b8273bf NC |
187 | } |
188 | pe_details_type; | |
189 | ||
e916811a | 190 | static const autofilter_entry_type autofilter_symbollist_generic[] = |
5b8273bf | 191 | { |
b92216aa | 192 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 193 | /* Entry point symbols. */ |
0112cd26 NC |
194 | { STRING_COMMA_LEN ("DllMain") }, |
195 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
196 | { STRING_COMMA_LEN ("_DllMainCRTStartup") }, | |
5b8273bf | 197 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
198 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
199 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
db86b2dc | 200 | { NULL, 0 } |
5b8273bf NC |
201 | }; |
202 | ||
e916811a | 203 | static const autofilter_entry_type autofilter_symbollist_i386[] = |
5b8273bf | 204 | { |
b92216aa | 205 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 206 | /* Entry point symbols, and entry hooks. */ |
0112cd26 | 207 | { STRING_COMMA_LEN ("cygwin_crt0") }, |
880383ca NC |
208 | #ifdef pe_use_x86_64 |
209 | { STRING_COMMA_LEN ("DllMain") }, | |
210 | { STRING_COMMA_LEN ("DllEntryPoint") }, | |
211 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
212 | { STRING_COMMA_LEN ("_cygwin_dll_entry") }, | |
213 | { STRING_COMMA_LEN ("_cygwin_crt0_common") }, | |
214 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry") }, | |
215 | #else | |
0112cd26 NC |
216 | { STRING_COMMA_LEN ("DllMain@12") }, |
217 | { STRING_COMMA_LEN ("DllEntryPoint@0") }, | |
218 | { STRING_COMMA_LEN ("DllMainCRTStartup@12") }, | |
219 | { STRING_COMMA_LEN ("_cygwin_dll_entry@12") }, | |
220 | { STRING_COMMA_LEN ("_cygwin_crt0_common@8") }, | |
221 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry@12") }, | |
222 | { STRING_COMMA_LEN ("cygwin_attach_dll") }, | |
880383ca | 223 | #endif |
0112cd26 NC |
224 | { STRING_COMMA_LEN ("cygwin_premain0") }, |
225 | { STRING_COMMA_LEN ("cygwin_premain1") }, | |
226 | { STRING_COMMA_LEN ("cygwin_premain2") }, | |
227 | { STRING_COMMA_LEN ("cygwin_premain3") }, | |
5b8273bf | 228 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
229 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
230 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
5b8273bf | 231 | /* Global vars that should not be exported. */ |
0112cd26 NC |
232 | { STRING_COMMA_LEN ("impure_ptr") }, |
233 | { STRING_COMMA_LEN ("_impure_ptr") }, | |
234 | { STRING_COMMA_LEN ("_fmode") }, | |
235 | { STRING_COMMA_LEN ("environ") }, | |
db86b2dc | 236 | { NULL, 0 } |
5b8273bf | 237 | }; |
b044cda1 | 238 | |
5b8273bf NC |
239 | #define PE_ARCH_i386 1 |
240 | #define PE_ARCH_sh 2 | |
241 | #define PE_ARCH_mips 3 | |
242 | #define PE_ARCH_arm 4 | |
775cabad | 243 | #define PE_ARCH_arm_epoc 5 |
7148cc28 | 244 | #define PE_ARCH_arm_wince 6 |
c6c37250 | 245 | |
e916811a | 246 | static const pe_details_type pe_detail_list[] = |
775cabad | 247 | { |
c6c37250 | 248 | { |
99ad8390 NC |
249 | #ifdef pe_use_x86_64 |
250 | "pei-x86-64", | |
251 | "pe-x86-64", | |
252 | 3 /* R_IMAGEBASE */, | |
253 | #else | |
c6c37250 DD |
254 | "pei-i386", |
255 | "pe-i386", | |
256 | 7 /* R_IMAGEBASE */, | |
99ad8390 | 257 | #endif |
c6c37250 DD |
258 | PE_ARCH_i386, |
259 | bfd_arch_i386, | |
5b8273bf NC |
260 | TRUE, |
261 | autofilter_symbollist_i386 | |
c6c37250 | 262 | }, |
344a211f NC |
263 | { |
264 | "pei-shl", | |
265 | "pe-shl", | |
266 | 16 /* R_SH_IMAGEBASE */, | |
267 | PE_ARCH_sh, | |
268 | bfd_arch_sh, | |
5b8273bf NC |
269 | TRUE, |
270 | autofilter_symbollist_generic | |
344a211f NC |
271 | }, |
272 | { | |
273 | "pei-mips", | |
274 | "pe-mips", | |
275 | 34 /* MIPS_R_RVA */, | |
276 | PE_ARCH_mips, | |
277 | bfd_arch_mips, | |
5b8273bf NC |
278 | FALSE, |
279 | autofilter_symbollist_generic | |
344a211f NC |
280 | }, |
281 | { | |
282 | "pei-arm-little", | |
283 | "pe-arm-little", | |
284 | 11 /* ARM_RVA32 */, | |
285 | PE_ARCH_arm, | |
286 | bfd_arch_arm, | |
5b8273bf NC |
287 | TRUE, |
288 | autofilter_symbollist_generic | |
344a211f | 289 | }, |
775cabad NC |
290 | { |
291 | "epoc-pei-arm-little", | |
292 | "epoc-pe-arm-little", | |
293 | 11 /* ARM_RVA32 */, | |
294 | PE_ARCH_arm_epoc, | |
295 | bfd_arch_arm, | |
5b8273bf NC |
296 | FALSE, |
297 | autofilter_symbollist_generic | |
775cabad | 298 | }, |
7148cc28 NC |
299 | { |
300 | "pei-arm-wince-little", | |
301 | "pe-arm-wince-little", | |
302 | 2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */ | |
303 | PE_ARCH_arm_wince, | |
304 | bfd_arch_arm, | |
305 | FALSE, | |
306 | autofilter_symbollist_generic | |
307 | }, | |
5b8273bf | 308 | { NULL, NULL, 0, 0, 0, FALSE, NULL } |
c6c37250 DD |
309 | }; |
310 | ||
e916811a | 311 | static const pe_details_type *pe_details; |
c6c37250 | 312 | |
775cabad | 313 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
e916811a | 314 | static const autofilter_entry_type autofilter_liblist[] = |
775cabad | 315 | { |
0112cd26 NC |
316 | { STRING_COMMA_LEN ("libcegcc") }, |
317 | { STRING_COMMA_LEN ("libcygwin") }, | |
318 | { STRING_COMMA_LEN ("libgcc") }, | |
81b07b16 | 319 | { STRING_COMMA_LEN ("libgcc_s") }, |
0112cd26 NC |
320 | { STRING_COMMA_LEN ("libstdc++") }, |
321 | { STRING_COMMA_LEN ("libmingw32") }, | |
322 | { STRING_COMMA_LEN ("libmingwex") }, | |
323 | { STRING_COMMA_LEN ("libg2c") }, | |
324 | { STRING_COMMA_LEN ("libsupc++") }, | |
325 | { STRING_COMMA_LEN ("libobjc") }, | |
326 | { STRING_COMMA_LEN ("libgcj") }, | |
db86b2dc | 327 | { NULL, 0 } |
b044cda1 | 328 | }; |
775cabad | 329 | |
81b07b16 DK |
330 | /* Regardless of the suffix issue mentioned above, we must ensure that |
331 | we do not falsely match on a leading substring, such as when libtool | |
332 | builds libstdc++ as a DLL using libsupc++convenience.a as an intermediate. | |
333 | This routine ensures that the leading part of the name matches and that | |
334 | it is followed by only an optional version suffix and a file extension, | |
335 | returning zero if so or -1 if not. */ | |
336 | static int libnamencmp (const char *libname, const autofilter_entry_type *afptr) | |
337 | { | |
338 | if (strncmp (libname, afptr->name, afptr->len)) | |
339 | return -1; | |
340 | ||
341 | libname += afptr->len; | |
342 | ||
343 | /* Be liberal in interpreting what counts as a version suffix; we | |
344 | accept anything that has a dash to separate it from the name and | |
345 | begins with a digit. */ | |
346 | if (libname[0] == '-') | |
347 | { | |
348 | if (!ISDIGIT (*++libname)) | |
349 | return -1; | |
350 | /* Ensure the filename has an extension. */ | |
351 | while (*++libname != '.') | |
352 | if (!*libname) | |
353 | return -1; | |
354 | } | |
355 | else if (libname[0] != '.') | |
356 | return -1; | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
e916811a | 361 | static const autofilter_entry_type autofilter_objlist[] = |
775cabad | 362 | { |
0112cd26 NC |
363 | { STRING_COMMA_LEN ("crt0.o") }, |
364 | { STRING_COMMA_LEN ("crt1.o") }, | |
365 | { STRING_COMMA_LEN ("crt2.o") }, | |
366 | { STRING_COMMA_LEN ("dllcrt1.o") }, | |
367 | { STRING_COMMA_LEN ("dllcrt2.o") }, | |
368 | { STRING_COMMA_LEN ("gcrt0.o") }, | |
369 | { STRING_COMMA_LEN ("gcrt1.o") }, | |
370 | { STRING_COMMA_LEN ("gcrt2.o") }, | |
371 | { STRING_COMMA_LEN ("crtbegin.o") }, | |
372 | { STRING_COMMA_LEN ("crtend.o") }, | |
db86b2dc | 373 | { NULL, 0 } |
b044cda1 | 374 | }; |
775cabad | 375 | |
e916811a | 376 | static const autofilter_entry_type autofilter_symbolprefixlist[] = |
775cabad | 377 | { |
00479ba8 NC |
378 | /* _imp_ is treated specially, as it is always underscored. */ |
379 | /* { STRING_COMMA_LEN ("_imp_") }, */ | |
380 | /* Don't export some c++ symbols. */ | |
0112cd26 | 381 | { STRING_COMMA_LEN ("__rtti_") }, |
00479ba8 | 382 | { STRING_COMMA_LEN ("__builtin_") }, |
39cebe23 | 383 | /* Don't re-export auto-imported symbols. */ |
0112cd26 | 384 | { STRING_COMMA_LEN ("_nm_") }, |
775cabad | 385 | /* Don't export symbols specifying internal DLL layout. */ |
0112cd26 | 386 | { STRING_COMMA_LEN ("_head_") }, |
b92216aa DS |
387 | { STRING_COMMA_LEN ("_IMPORT_DESCRIPTOR_") }, |
388 | /* Don't export section labels or artificial symbols | |
389 | (eg ".weak.foo". */ | |
390 | { STRING_COMMA_LEN (".") }, | |
db86b2dc | 391 | { NULL, 0 } |
b044cda1 | 392 | }; |
775cabad | 393 | |
e916811a | 394 | static const autofilter_entry_type autofilter_symbolsuffixlist[] = |
775cabad | 395 | { |
0112cd26 | 396 | { STRING_COMMA_LEN ("_iname") }, |
b92216aa | 397 | { STRING_COMMA_LEN ("_NULL_THUNK_DATA") }, |
db86b2dc | 398 | { NULL, 0 } |
b044cda1 CW |
399 | }; |
400 | ||
c6c37250 DD |
401 | #define U(str) (pe_details->underscored ? "_" str : str) |
402 | ||
403 | void | |
1579bae1 | 404 | pe_dll_id_target (const char *target) |
c6c37250 DD |
405 | { |
406 | int i; | |
775cabad | 407 | |
d643799d | 408 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
409 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
410 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 411 | { |
d643799d | 412 | pe_details = pe_detail_list + i; |
c6c37250 DD |
413 | return; |
414 | } | |
415 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
416 | exit (1); | |
417 | } | |
418 | ||
b7a26f91 | 419 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 420 | them out by pages. */ |
252b5132 | 421 | |
775cabad NC |
422 | typedef struct |
423 | { | |
424 | bfd_vma vma; | |
425 | char type; | |
426 | short extra; | |
427 | } | |
428 | reloc_data_type; | |
c6c37250 | 429 | |
252b5132 | 430 | static int |
1579bae1 | 431 | reloc_sort (const void *va, const void *vb) |
252b5132 | 432 | { |
1579bae1 AM |
433 | bfd_vma a = ((const reloc_data_type *) va)->vma; |
434 | bfd_vma b = ((const reloc_data_type *) vb)->vma; | |
775cabad | 435 | |
c6c37250 | 436 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
437 | } |
438 | ||
439 | static int | |
1579bae1 | 440 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 441 | { |
1579bae1 AM |
442 | const def_file_export *a = va; |
443 | const def_file_export *b = vb; | |
775cabad | 444 | |
252b5132 RH |
445 | return strcmp (a->name, b->name); |
446 | } | |
447 | ||
775cabad | 448 | /* Read and process the .DEF file. */ |
252b5132 RH |
449 | |
450 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
451 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 452 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
453 | |
454 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 455 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
456 | static int export_table_size; |
457 | static int count_exported; | |
458 | static int count_exported_byname; | |
459 | static int count_with_ordinals; | |
460 | static const char *dll_name; | |
461 | static int min_ordinal, max_ordinal; | |
462 | static int *exported_symbols; | |
463 | ||
775cabad NC |
464 | typedef struct exclude_list_struct |
465 | { | |
466 | char *string; | |
467 | struct exclude_list_struct *next; | |
e1c37eb5 | 468 | exclude_type type; |
775cabad NC |
469 | } |
470 | exclude_list_struct; | |
86b1cc60 | 471 | |
252b5132 RH |
472 | static struct exclude_list_struct *excludes = 0; |
473 | ||
474 | void | |
e1c37eb5 | 475 | pe_dll_add_excludes (const char *new_excludes, const exclude_type type) |
252b5132 RH |
476 | { |
477 | char *local_copy; | |
478 | char *exclude_string; | |
479 | ||
480 | local_copy = xstrdup (new_excludes); | |
481 | ||
482 | exclude_string = strtok (local_copy, ",:"); | |
483 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
484 | { | |
485 | struct exclude_list_struct *new_exclude; | |
486 | ||
1579bae1 AM |
487 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
488 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 489 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 490 | new_exclude->type = type; |
252b5132 RH |
491 | new_exclude->next = excludes; |
492 | excludes = new_exclude; | |
493 | } | |
494 | ||
495 | free (local_copy); | |
496 | } | |
497 | ||
00479ba8 NC |
498 | static bfd_boolean |
499 | is_import (const char* n) | |
500 | { | |
e916811a | 501 | return (CONST_STRNEQ (n, "__imp_")); |
00479ba8 | 502 | } |
70b0be79 | 503 | |
775cabad NC |
504 | /* abfd is a bfd containing n (or NULL) |
505 | It can be used for contextual checks. */ | |
506 | ||
252b5132 | 507 | static int |
1579bae1 | 508 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 RH |
509 | { |
510 | int i; | |
511 | struct exclude_list_struct *ex; | |
e916811a | 512 | const autofilter_entry_type *afptr; |
70b0be79 CF |
513 | const char * libname = 0; |
514 | if (abfd && abfd->my_archive) | |
515 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 516 | |
252b5132 RH |
517 | for (i = 0; i < d->num_exports; i++) |
518 | if (strcmp (d->exports[i].name, n) == 0) | |
519 | return 0; | |
775cabad | 520 | |
252b5132 RH |
521 | if (pe_dll_do_default_excludes) |
522 | { | |
663dd378 | 523 | const char * p; |
775cabad NC |
524 | int len; |
525 | ||
b044cda1 | 526 | if (pe_dll_extra_pe_debug) |
775cabad NC |
527 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
528 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
529 | |
530 | /* First of all, make context checks: | |
1579bae1 | 531 | Don't export anything from standard libs. */ |
658957db | 532 | if (libname) |
b044cda1 CW |
533 | { |
534 | afptr = autofilter_liblist; | |
775cabad | 535 | |
b044cda1 CW |
536 | while (afptr->name) |
537 | { | |
81b07b16 | 538 | if (libnamencmp (libname, afptr) == 0 ) |
b044cda1 CW |
539 | return 0; |
540 | afptr++; | |
541 | } | |
542 | } | |
543 | ||
775cabad | 544 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 545 | |
59d28a94 | 546 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 547 | { |
b7a26f91 KH |
548 | afptr = autofilter_objlist; |
549 | while (afptr->name) | |
59d28a94 | 550 | { |
b7a26f91 KH |
551 | if (strcmp (p, afptr->name) == 0) |
552 | return 0; | |
59d28a94 | 553 | afptr++; |
663dd378 | 554 | } |
775cabad | 555 | } |
b044cda1 CW |
556 | |
557 | /* Don't try to blindly exclude all symbols | |
558 | that begin with '__'; this was tried and | |
5b8273bf NC |
559 | it is too restrictive. Instead we have |
560 | a target specific list to use: */ | |
561 | afptr = pe_details->autofilter_symbollist; | |
99ad8390 | 562 | |
b044cda1 CW |
563 | while (afptr->name) |
564 | { | |
565 | if (strcmp (n, afptr->name) == 0) | |
566 | return 0; | |
775cabad | 567 | |
b7a26f91 | 568 | afptr++; |
b044cda1 CW |
569 | } |
570 | ||
775cabad | 571 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
572 | afptr = autofilter_symbolprefixlist; |
573 | while (afptr->name) | |
574 | { | |
575 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
576 | return 0; | |
775cabad | 577 | |
b7a26f91 | 578 | afptr++; |
b044cda1 CW |
579 | } |
580 | ||
775cabad NC |
581 | /* Finally, exclude symbols ending with ... */ |
582 | len = strlen (n); | |
583 | afptr = autofilter_symbolsuffixlist; | |
584 | while (afptr->name) | |
585 | { | |
b7a26f91 | 586 | if ((len >= afptr->len) |
775cabad | 587 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
588 | && strncmp (n + len - afptr->len, afptr->name, |
589 | afptr->len + 1) == 0) | |
775cabad NC |
590 | return 0; |
591 | ||
b7a26f91 | 592 | afptr++; |
775cabad | 593 | } |
252b5132 | 594 | } |
775cabad | 595 | |
252b5132 | 596 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 | 597 | { |
e1c37eb5 | 598 | if (ex->type == EXCLUDELIBS) |
70b0be79 CF |
599 | { |
600 | if (libname | |
601 | && ((strcmp (libname, ex->string) == 0) | |
602 | || (strcasecmp ("ALL", ex->string) == 0))) | |
603 | return 0; | |
604 | } | |
e1c37eb5 DK |
605 | else if (ex->type == EXCLUDEFORIMPLIB) |
606 | { | |
607 | if (strcmp (abfd->filename, ex->string) == 0) | |
608 | return 0; | |
609 | } | |
70b0be79 | 610 | else if (strcmp (n, ex->string) == 0) |
658957db | 611 | return 0; |
70b0be79 | 612 | } |
775cabad | 613 | |
252b5132 RH |
614 | return 1; |
615 | } | |
616 | ||
617 | static void | |
1579bae1 | 618 | process_def_file (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
619 | { |
620 | int i, j; | |
621 | struct bfd_link_hash_entry *blhe; | |
622 | bfd *b; | |
198beae2 | 623 | struct bfd_section *s; |
d643799d | 624 | def_file_export *e = 0; |
252b5132 RH |
625 | |
626 | if (!pe_def_file) | |
627 | pe_def_file = def_file_empty (); | |
628 | ||
629 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 630 | sections, and push those into the def file too. */ |
252b5132 RH |
631 | for (b = info->input_bfds; b; b = b->link_next) |
632 | { | |
633 | s = bfd_get_section_by_name (b, ".drectve"); | |
634 | if (s) | |
635 | { | |
eea6121a | 636 | long size = s->size; |
252b5132 | 637 | char *buf = xmalloc (size); |
775cabad | 638 | |
252b5132 RH |
639 | bfd_get_section_contents (b, s, buf, 0, size); |
640 | def_file_add_directive (pe_def_file, buf, size); | |
641 | free (buf); | |
642 | } | |
643 | } | |
644 | ||
2b817be1 NC |
645 | /* If we are not building a DLL, when there are no exports |
646 | we do not build an export table at all. */ | |
647 | if (!pe_dll_export_everything && pe_def_file->num_exports == 0 | |
7b0eaa22 | 648 | && info->executable) |
2b817be1 NC |
649 | return; |
650 | ||
86b1cc60 | 651 | /* Now, maybe export everything else the default way. */ |
252b5132 RH |
652 | if (pe_dll_export_everything || pe_def_file->num_exports == 0) |
653 | { | |
654 | for (b = info->input_bfds; b; b = b->link_next) | |
655 | { | |
656 | asymbol **symbols; | |
5c1d2f5f | 657 | int nsyms; |
252b5132 | 658 | |
5c1d2f5f AM |
659 | if (!bfd_generic_link_read_symbols (b)) |
660 | { | |
661 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
662 | return; | |
663 | } | |
664 | ||
665 | symbols = bfd_get_outsymbols (b); | |
666 | nsyms = bfd_get_symcount (b); | |
252b5132 RH |
667 | |
668 | for (j = 0; j < nsyms; j++) | |
669 | { | |
d643799d | 670 | /* We should export symbols which are either global or not |
1579bae1 AM |
671 | anything at all. (.bss data is the latter) |
672 | We should not export undefined symbols. */ | |
b044cda1 CW |
673 | if (symbols[j]->section != &bfd_und_section |
674 | && ((symbols[j]->flags & BSF_GLOBAL) | |
e7c33416 | 675 | || (symbols[j]->flags == 0))) |
252b5132 RH |
676 | { |
677 | const char *sn = symbols[j]->name; | |
b044cda1 | 678 | |
775cabad | 679 | /* We should not re-export imported stuff. */ |
b044cda1 | 680 | { |
e916811a | 681 | char *name; |
00479ba8 NC |
682 | if (is_import (sn)) |
683 | continue; | |
684 | ||
e916811a | 685 | name = xmalloc (strlen ("__imp_") + strlen (sn) + 1); |
00479ba8 | 686 | sprintf (name, "%s%s", "__imp_", sn); |
775cabad | 687 | |
b044cda1 | 688 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 689 | FALSE, FALSE, FALSE); |
b044cda1 CW |
690 | free (name); |
691 | ||
b7a26f91 | 692 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
693 | continue; |
694 | } | |
695 | ||
00479ba8 | 696 | if (pe_details->underscored && *sn == '_') |
252b5132 | 697 | sn++; |
775cabad | 698 | |
b044cda1 CW |
699 | if (auto_export (b, pe_def_file, sn)) |
700 | { | |
701 | def_file_export *p; | |
702 | p=def_file_add_export (pe_def_file, sn, 0, -1); | |
775cabad | 703 | /* Fill data flag properly, from dlltool.c. */ |
b044cda1 CW |
704 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
705 | } | |
252b5132 RH |
706 | } |
707 | } | |
708 | } | |
709 | } | |
710 | ||
711 | #undef NE | |
712 | #define NE pe_def_file->num_exports | |
713 | ||
86b1cc60 | 714 | /* Canonicalize the export list. */ |
252b5132 RH |
715 | if (pe_dll_kill_ats) |
716 | { | |
717 | for (i = 0; i < NE; i++) | |
718 | { | |
719 | if (strchr (pe_def_file->exports[i].name, '@')) | |
720 | { | |
86b1cc60 | 721 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
722 | pointing to the same memory as name, or might not |
723 | have. */ | |
724 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 725 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
a8d701fd | 726 | char *tmp_at = strchr (tmp, '@'); |
775cabad | 727 | |
a8d701fd DS |
728 | if (tmp_at) |
729 | *tmp_at = 0; | |
730 | else | |
731 | einfo (_("%XCannot export %s: invalid export name\n"), | |
732 | pe_def_file->exports[i].name); | |
252b5132 RH |
733 | pe_def_file->exports[i].name = tmp; |
734 | } | |
735 | } | |
736 | } | |
737 | ||
738 | if (pe_dll_stdcall_aliases) | |
739 | { | |
740 | for (i = 0; i < NE; i++) | |
741 | { | |
00479ba8 NC |
742 | if (is_import (pe_def_file->exports[i].name)) |
743 | continue; | |
744 | ||
252b5132 RH |
745 | if (strchr (pe_def_file->exports[i].name, '@')) |
746 | { | |
1579bae1 | 747 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 748 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 749 | |
252b5132 | 750 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 751 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 752 | def_file_add_export (pe_def_file, tmp, |
b044cda1 CW |
753 | pe_def_file->exports[i].internal_name, |
754 | -1); | |
252b5132 RH |
755 | else |
756 | free (tmp); | |
757 | } | |
758 | } | |
759 | } | |
760 | ||
86b1cc60 KH |
761 | /* Convenience, but watch out for it changing. */ |
762 | e = pe_def_file->exports; | |
252b5132 | 763 | |
1579bae1 | 764 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
198beae2 | 765 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); |
252b5132 | 766 | |
198beae2 | 767 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); |
252b5132 RH |
768 | max_ordinal = 0; |
769 | min_ordinal = 65536; | |
770 | count_exported = 0; | |
771 | count_exported_byname = 0; | |
772 | count_with_ordinals = 0; | |
773 | ||
1579bae1 AM |
774 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), |
775 | pe_export_sort); | |
252b5132 RH |
776 | for (i = 0, j = 0; i < NE; i++) |
777 | { | |
778 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
779 | { | |
870df5dc | 780 | /* This is a duplicate. */ |
252b5132 RH |
781 | if (e[j - 1].ordinal != -1 |
782 | && e[i].ordinal != -1 | |
783 | && e[j - 1].ordinal != e[i].ordinal) | |
784 | { | |
870df5dc NC |
785 | if (pe_dll_warn_dup_exports) |
786 | /* xgettext:c-format */ | |
486e80e2 | 787 | einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 788 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
789 | } |
790 | else | |
791 | { | |
870df5dc NC |
792 | if (pe_dll_warn_dup_exports) |
793 | /* xgettext:c-format */ | |
794 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
795 | e[j - 1].name); | |
252b5132 | 796 | } |
775cabad | 797 | |
486e80e2 | 798 | if (e[i].ordinal != -1) |
252b5132 RH |
799 | e[j - 1].ordinal = e[i].ordinal; |
800 | e[j - 1].flag_private |= e[i].flag_private; | |
801 | e[j - 1].flag_constant |= e[i].flag_constant; | |
802 | e[j - 1].flag_noname |= e[i].flag_noname; | |
803 | e[j - 1].flag_data |= e[i].flag_data; | |
804 | } | |
805 | else | |
806 | { | |
807 | if (i != j) | |
808 | e[j] = e[i]; | |
809 | j++; | |
810 | } | |
811 | } | |
812 | pe_def_file->num_exports = j; /* == NE */ | |
813 | ||
814 | for (i = 0; i < NE; i++) | |
815 | { | |
1579bae1 | 816 | char *name; |
775cabad | 817 | |
a8d701fd DS |
818 | /* Check for forward exports */ |
819 | if (strchr (pe_def_file->exports[i].internal_name, '.')) | |
820 | { | |
821 | count_exported++; | |
822 | if (!pe_def_file->exports[i].flag_noname) | |
823 | count_exported_byname++; | |
824 | ||
825 | pe_def_file->exports[i].flag_forward = 1; | |
826 | ||
827 | if (pe_def_file->exports[i].ordinal != -1) | |
828 | { | |
829 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
830 | max_ordinal = pe_def_file->exports[i].ordinal; | |
831 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
832 | min_ordinal = pe_def_file->exports[i].ordinal; | |
833 | count_with_ordinals++; | |
834 | } | |
835 | ||
836 | continue; | |
837 | } | |
838 | ||
1579bae1 | 839 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 NC |
840 | if (pe_details->underscored |
841 | && (*pe_def_file->exports[i].internal_name != '@')) | |
c6c37250 DD |
842 | { |
843 | *name = '_'; | |
844 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
845 | } | |
846 | else | |
847 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
848 | |
849 | blhe = bfd_link_hash_lookup (info->hash, | |
850 | name, | |
b34976b6 | 851 | FALSE, FALSE, TRUE); |
252b5132 | 852 | |
8a5b676c | 853 | if (blhe |
d643799d | 854 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 855 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
856 | { |
857 | count_exported++; | |
858 | if (!pe_def_file->exports[i].flag_noname) | |
859 | count_exported_byname++; | |
8a5b676c DD |
860 | |
861 | /* Only fill in the sections. The actual offsets are computed | |
862 | in fill_exported_offsets() after common symbols are laid | |
863 | out. */ | |
d643799d | 864 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
865 | exported_symbol_sections[i] = blhe->u.def.section; |
866 | else | |
867 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 868 | |
252b5132 RH |
869 | if (pe_def_file->exports[i].ordinal != -1) |
870 | { | |
871 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
872 | max_ordinal = pe_def_file->exports[i].ordinal; | |
873 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
874 | min_ordinal = pe_def_file->exports[i].ordinal; | |
875 | count_with_ordinals++; | |
876 | } | |
877 | } | |
878 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
879 | { | |
880 | /* xgettext:c-format */ | |
881 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
882 | pe_def_file->exports[i].internal_name); | |
883 | } | |
884 | else if (blhe) | |
885 | { | |
886 | /* xgettext:c-format */ | |
887 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
888 | pe_def_file->exports[i].internal_name, | |
889 | blhe->type, bfd_link_hash_defined); | |
890 | } | |
891 | else | |
892 | { | |
893 | /* xgettext:c-format */ | |
894 | einfo (_("%XCannot export %s: symbol not found\n"), | |
895 | pe_def_file->exports[i].internal_name); | |
896 | } | |
897 | free (name); | |
898 | } | |
899 | } | |
900 | ||
775cabad | 901 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
902 | |
903 | static void | |
1579bae1 | 904 | build_filler_bfd (int include_edata) |
252b5132 RH |
905 | { |
906 | lang_input_statement_type *filler_file; | |
907 | filler_file = lang_add_input_file ("dll stuff", | |
908 | lang_input_file_is_fake_enum, | |
909 | NULL); | |
f13a99db AM |
910 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", |
911 | link_info.output_bfd); | |
252b5132 RH |
912 | if (filler_bfd == NULL |
913 | || !bfd_set_arch_mach (filler_bfd, | |
f13a99db AM |
914 | bfd_get_arch (link_info.output_bfd), |
915 | bfd_get_mach (link_info.output_bfd))) | |
252b5132 | 916 | { |
36230712 | 917 | einfo ("%X%P: can not create BFD: %E\n"); |
252b5132 RH |
918 | return; |
919 | } | |
920 | ||
c6c37250 | 921 | if (include_edata) |
252b5132 | 922 | { |
c6c37250 DD |
923 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
924 | if (edata_s == NULL | |
925 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
926 | (SEC_HAS_CONTENTS | |
927 | | SEC_ALLOC | |
928 | | SEC_LOAD | |
929 | | SEC_KEEP | |
930 | | SEC_IN_MEMORY))) | |
931 | { | |
932 | einfo ("%X%P: can not create .edata section: %E\n"); | |
933 | return; | |
934 | } | |
935 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 936 | } |
252b5132 RH |
937 | |
938 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
939 | if (reloc_s == NULL | |
940 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
941 | (SEC_HAS_CONTENTS | |
942 | | SEC_ALLOC | |
943 | | SEC_LOAD | |
944 | | SEC_KEEP | |
945 | | SEC_IN_MEMORY))) | |
946 | { | |
947 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
948 | return; | |
949 | } | |
775cabad | 950 | |
252b5132 RH |
951 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
952 | ||
953 | ldlang_add_file (filler_file); | |
954 | } | |
955 | ||
775cabad | 956 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
957 | |
958 | static void | |
1579bae1 | 959 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
960 | { |
961 | int i, next_ordinal; | |
962 | int name_table_size = 0; | |
963 | const char *dlnp; | |
964 | ||
965 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 966 | and what the range of ordinals is. */ |
252b5132 | 967 | if (pe_def_file->name) |
775cabad | 968 | dll_name = pe_def_file->name; |
252b5132 RH |
969 | else |
970 | { | |
971 | dll_name = abfd->filename; | |
775cabad | 972 | |
252b5132 | 973 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
974 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
975 | dll_name = dlnp + 1; | |
252b5132 RH |
976 | } |
977 | ||
978 | if (count_with_ordinals && max_ordinal > count_exported) | |
979 | { | |
980 | if (min_ordinal > max_ordinal - count_exported + 1) | |
981 | min_ordinal = max_ordinal - count_exported + 1; | |
982 | } | |
983 | else | |
984 | { | |
985 | min_ordinal = 1; | |
986 | max_ordinal = count_exported; | |
987 | } | |
252b5132 | 988 | |
775cabad | 989 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 990 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
991 | for (i = 0; i < export_table_size; i++) |
992 | exported_symbols[i] = -1; | |
993 | ||
86b1cc60 | 994 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
995 | for (i = 0; i < NE; i++) |
996 | { | |
a8d701fd DS |
997 | if (exported_symbol_sections[i] || |
998 | pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
999 | { |
1000 | if (pe_def_file->exports[i].ordinal != -1) | |
1001 | { | |
1002 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
1003 | int pi = exported_symbols[ei]; | |
775cabad | 1004 | |
252b5132 RH |
1005 | if (pi != -1) |
1006 | { | |
1007 | /* xgettext:c-format */ | |
486e80e2 | 1008 | einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
1009 | pe_def_file->exports[i].ordinal, |
1010 | pe_def_file->exports[i].name, | |
1011 | pe_def_file->exports[pi].name); | |
1012 | } | |
1013 | exported_symbols[ei] = i; | |
1014 | } | |
1015 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
1016 | } | |
a8d701fd DS |
1017 | |
1018 | /* Reserve space for the forward name. */ | |
1019 | if (pe_def_file->exports[i].flag_forward) | |
1020 | { | |
1021 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
1022 | } | |
252b5132 RH |
1023 | } |
1024 | ||
1025 | next_ordinal = min_ordinal; | |
1026 | for (i = 0; i < NE; i++) | |
a8d701fd DS |
1027 | if ((exported_symbol_sections[i] || |
1028 | pe_def_file->exports[i].flag_forward) && | |
1029 | pe_def_file->exports[i].ordinal == -1) | |
1030 | { | |
1031 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
1032 | next_ordinal++; | |
775cabad | 1033 | |
a8d701fd DS |
1034 | exported_symbols[next_ordinal - min_ordinal] = i; |
1035 | pe_def_file->exports[i].ordinal = next_ordinal; | |
1036 | } | |
252b5132 | 1037 | |
86b1cc60 | 1038 | /* OK, now we can allocate some memory. */ |
775cabad NC |
1039 | edata_sz = (40 /* directory */ |
1040 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
1041 | + 4 * count_exported_byname /* name ptrs */ |
1042 | + 2 * count_exported_byname /* ordinals */ | |
1043 | + name_table_size + strlen (dll_name) + 1); | |
1044 | } | |
1045 | ||
8a5b676c DD |
1046 | /* Fill the exported symbol offsets. The preliminary work has already |
1047 | been done in process_def_file(). */ | |
1048 | ||
1049 | static void | |
1579bae1 | 1050 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 1051 | { |
f0c87f88 | 1052 | int i; |
8a5b676c | 1053 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 1054 | |
8a5b676c DD |
1055 | for (i = 0; i < pe_def_file->num_exports; i++) |
1056 | { | |
1579bae1 | 1057 | char *name; |
775cabad | 1058 | |
1579bae1 | 1059 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 1060 | if (pe_details->underscored |
1579bae1 | 1061 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
1062 | { |
1063 | *name = '_'; | |
1064 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
1065 | } | |
1066 | else | |
1067 | strcpy (name, pe_def_file->exports[i].internal_name); | |
1068 | ||
1069 | blhe = bfd_link_hash_lookup (info->hash, | |
1070 | name, | |
b34976b6 | 1071 | FALSE, FALSE, TRUE); |
8a5b676c | 1072 | |
1579bae1 | 1073 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
1074 | exported_symbol_offsets[i] = blhe->u.def.value; |
1075 | ||
8a5b676c DD |
1076 | free (name); |
1077 | } | |
1078 | } | |
1079 | ||
252b5132 | 1080 | static void |
1579bae1 | 1081 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 1082 | { |
03a1c9a7 | 1083 | int s, hint; |
252b5132 | 1084 | unsigned char *edirectory; |
2f9636ba AM |
1085 | unsigned char *eaddresses; |
1086 | unsigned char *enameptrs; | |
1087 | unsigned char *eordinals; | |
47639182 | 1088 | char *enamestr; |
252b5132 RH |
1089 | time_t now; |
1090 | ||
1091 | time (&now); | |
1092 | ||
1579bae1 | 1093 | edata_d = xmalloc (edata_sz); |
252b5132 | 1094 | |
86b1cc60 | 1095 | /* Note use of array pointer math here. */ |
252b5132 | 1096 | edirectory = edata_d; |
2f9636ba AM |
1097 | eaddresses = edata_d + 40; |
1098 | enameptrs = eaddresses + 4 * export_table_size; | |
1099 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 1100 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 1101 | |
1579bae1 AM |
1102 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
1103 | + edata_s->output_section->vma - image_base) | |
252b5132 | 1104 | |
c2a94a7a | 1105 | memset (edata_d, 0, edata_sz); |
252b5132 RH |
1106 | bfd_put_32 (abfd, now, edata_d + 4); |
1107 | if (pe_def_file->version_major != -1) | |
1108 | { | |
1109 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1110 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1111 | } | |
775cabad | 1112 | |
252b5132 RH |
1113 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1114 | strcpy (enamestr, dll_name); | |
1115 | enamestr += strlen (enamestr) + 1; | |
1116 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1117 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1118 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1119 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1120 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1121 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1122 | ||
8a5b676c DD |
1123 | fill_exported_offsets (abfd, info); |
1124 | ||
03a1c9a7 NC |
1125 | /* Ok, now for the filling in part. |
1126 | Scan alphabetically - ie the ordering in the exports[] table, | |
1127 | rather than by ordinal - the ordering in the exported_symbol[] | |
1128 | table. See dlltool.c and: | |
1129 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html | |
1579bae1 | 1130 | for more information. */ |
252b5132 | 1131 | hint = 0; |
03a1c9a7 | 1132 | for (s = 0; s < NE; s++) |
252b5132 | 1133 | { |
f5a95868 | 1134 | struct bfd_section *ssec = exported_symbol_sections[s]; |
a8d701fd DS |
1135 | if (pe_def_file->exports[s].ordinal != -1 && |
1136 | (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1137 | { |
45b1f63c | 1138 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1139 | |
a8d701fd DS |
1140 | if (pe_def_file->exports[s].flag_forward) |
1141 | { | |
1142 | bfd_put_32 (abfd, ERVA (enamestr), | |
1143 | eaddresses + 4 * (ord - min_ordinal)); | |
1144 | ||
1145 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1146 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1147 | } | |
1148 | else | |
1149 | { | |
6ca0987a | 1150 | bfd_vma srva = (exported_symbol_offsets[s] |
a8d701fd DS |
1151 | + ssec->output_section->vma |
1152 | + ssec->output_offset); | |
1153 | ||
1154 | bfd_put_32 (abfd, srva - image_base, | |
1155 | eaddresses + 4 * (ord - min_ordinal)); | |
1156 | } | |
775cabad | 1157 | |
252b5132 RH |
1158 | if (!pe_def_file->exports[s].flag_noname) |
1159 | { | |
1160 | char *ename = pe_def_file->exports[s].name; | |
03a1c9a7 | 1161 | |
2f9636ba AM |
1162 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1163 | enameptrs += 4; | |
252b5132 RH |
1164 | strcpy (enamestr, ename); |
1165 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1166 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1167 | eordinals += 2; | |
252b5132 RH |
1168 | pe_def_file->exports[s].hint = hint++; |
1169 | } | |
252b5132 RH |
1170 | } |
1171 | } | |
1172 | } | |
1173 | ||
b044cda1 | 1174 | |
198beae2 | 1175 | static struct bfd_section *current_sec; |
b044cda1 CW |
1176 | |
1177 | void | |
1579bae1 AM |
1178 | pe_walk_relocs_of_symbol (struct bfd_link_info *info, |
1179 | const char *name, | |
1180 | int (*cb) (arelent *, asection *)) | |
b044cda1 CW |
1181 | { |
1182 | bfd *b; | |
0d888aac | 1183 | asection *s; |
b044cda1 CW |
1184 | |
1185 | for (b = info->input_bfds; b; b = b->link_next) | |
1186 | { | |
775cabad | 1187 | asymbol **symbols; |
5c1d2f5f | 1188 | int nsyms; |
775cabad | 1189 | |
5c1d2f5f AM |
1190 | if (!bfd_generic_link_read_symbols (b)) |
1191 | { | |
1192 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1193 | return; | |
1194 | } | |
1195 | ||
1196 | symbols = bfd_get_outsymbols (b); | |
1197 | nsyms = bfd_get_symcount (b); | |
b044cda1 CW |
1198 | |
1199 | for (s = b->sections; s; s = s->next) | |
1200 | { | |
775cabad NC |
1201 | arelent **relocs; |
1202 | int relsize, nrelocs, i; | |
b044cda1 CW |
1203 | int flags = bfd_get_section_flags (b, s); |
1204 | ||
775cabad | 1205 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1206 | if (flags & SEC_LINK_ONCE |
1207 | && s->output_section == bfd_abs_section_ptr) | |
1208 | continue; | |
1209 | ||
0d888aac | 1210 | current_sec = s; |
b044cda1 | 1211 | |
b044cda1 | 1212 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1213 | relocs = xmalloc (relsize); |
b044cda1 CW |
1214 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1215 | ||
1216 | for (i = 0; i < nrelocs; i++) | |
1217 | { | |
fc0a2244 | 1218 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad NC |
1219 | |
1220 | if (!strcmp (name, sym->name)) | |
1221 | cb (relocs[i], s); | |
b044cda1 | 1222 | } |
775cabad | 1223 | |
b044cda1 | 1224 | free (relocs); |
775cabad | 1225 | |
b044cda1 CW |
1226 | /* Warning: the allocated symbols are remembered in BFD and reused |
1227 | later, so don't free them! */ | |
1228 | /* free (symbols); */ | |
1229 | } | |
1230 | } | |
1231 | } | |
1232 | ||
775cabad | 1233 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1234 | |
1235 | static void | |
1579bae1 | 1236 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1237 | { |
1238 | ||
86b1cc60 | 1239 | /* For .reloc stuff. */ |
c6c37250 | 1240 | reloc_data_type *reloc_data; |
252b5132 RH |
1241 | int total_relocs = 0; |
1242 | int i; | |
6ca0987a KT |
1243 | bfd_vma sec_page = (bfd_vma) -1; |
1244 | bfd_vma page_ptr, page_count; | |
252b5132 RH |
1245 | int bi; |
1246 | bfd *b; | |
198beae2 | 1247 | struct bfd_section *s; |
252b5132 RH |
1248 | |
1249 | total_relocs = 0; | |
1250 | for (b = info->input_bfds; b; b = b->link_next) | |
1251 | for (s = b->sections; s; s = s->next) | |
1252 | total_relocs += s->reloc_count; | |
1253 | ||
1579bae1 | 1254 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1255 | |
1256 | total_relocs = 0; | |
1257 | bi = 0; | |
1258 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
1259 | { | |
1260 | arelent **relocs; | |
1261 | int relsize, nrelocs, i; | |
1262 | ||
1263 | for (s = b->sections; s; s = s->next) | |
1264 | { | |
6ca0987a | 1265 | bfd_vma sec_vma = s->output_section->vma + s->output_offset; |
252b5132 | 1266 | asymbol **symbols; |
5c1d2f5f | 1267 | int nsyms; |
252b5132 | 1268 | |
86b1cc60 | 1269 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1270 | if (!(s->output_section->flags & SEC_LOAD)) |
1271 | continue; | |
1272 | ||
1273 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1274 | seen it happen - DJ */ |
252b5132 RH |
1275 | if (s->output_section == &bfd_abs_section) |
1276 | continue; | |
1277 | ||
1278 | if (s->output_section->vma == 0) | |
1279 | { | |
86b1cc60 | 1280 | /* Huh? Shouldn't happen, but punt if it does. */ |
252b5132 RH |
1281 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", |
1282 | s->output_section->name, s->output_section->index, | |
1283 | s->output_section->flags); | |
1284 | continue; | |
1285 | } | |
1286 | ||
5c1d2f5f AM |
1287 | if (!bfd_generic_link_read_symbols (b)) |
1288 | { | |
1289 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1290 | return; | |
1291 | } | |
252b5132 | 1292 | |
5c1d2f5f AM |
1293 | symbols = bfd_get_outsymbols (b); |
1294 | nsyms = bfd_get_symcount (b); | |
252b5132 | 1295 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1296 | relocs = xmalloc (relsize); |
252b5132 RH |
1297 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1298 | ||
1299 | for (i = 0; i < nrelocs; i++) | |
1300 | { | |
b044cda1 | 1301 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1302 | { |
fc0a2244 | 1303 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1304 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1305 | } |
252b5132 | 1306 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1307 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1308 | { |
c6c37250 | 1309 | bfd_vma sym_vma; |
fc0a2244 | 1310 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1311 | |
49314f87 DS |
1312 | /* Don't create relocs for undefined weak symbols. */ |
1313 | if (sym->flags == BSF_WEAK) | |
1314 | { | |
1315 | struct bfd_link_hash_entry *blhe | |
1316 | = bfd_link_hash_lookup (info->hash, sym->name, | |
1317 | FALSE, FALSE, FALSE); | |
1318 | if (!blhe || blhe->type != bfd_link_hash_defined) | |
1319 | continue; | |
1320 | } | |
1321 | ||
c6c37250 DD |
1322 | sym_vma = (relocs[i]->addend |
1323 | + sym->value | |
1324 | + sym->section->vma | |
1325 | + sym->section->output_offset | |
1326 | + sym->section->output_section->vma); | |
1327 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; | |
5cc18311 | 1328 | |
344a211f | 1329 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1330 | |
344a211f NC |
1331 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1332 | relocs[i]->howto->rightshift) | |
252b5132 | 1333 | { |
99ad8390 NC |
1334 | #ifdef pe_use_x86_64 |
1335 | case BITS_AND_SHIFT (64, 0): | |
1336 | reloc_data[total_relocs].type = 10; | |
1337 | total_relocs++; | |
1338 | break; | |
1339 | #endif | |
344a211f | 1340 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1341 | reloc_data[total_relocs].type = 3; |
1342 | total_relocs++; | |
252b5132 | 1343 | break; |
344a211f NC |
1344 | case BITS_AND_SHIFT (16, 0): |
1345 | reloc_data[total_relocs].type = 2; | |
1346 | total_relocs++; | |
1347 | break; | |
1348 | case BITS_AND_SHIFT (16, 16): | |
1349 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1350 | /* FIXME: we can't know the symbol's right value |
1351 | yet, but we probably can safely assume that | |
1352 | CE will relocate us in 64k blocks, so leaving | |
1353 | it zero is safe. */ | |
344a211f NC |
1354 | reloc_data[total_relocs].extra = 0; |
1355 | total_relocs++; | |
1356 | break; | |
1357 | case BITS_AND_SHIFT (26, 2): | |
1358 | reloc_data[total_relocs].type = 5; | |
1359 | total_relocs++; | |
1360 | break; | |
fea39bcb | 1361 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1362 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1363 | Those ARM_xxx definitions should go in proper | |
1364 | header someday. */ | |
1365 | if (relocs[i]->howto->type == 0 | |
1366 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1367 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1368 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1369 | that has already been fully processed during a | |
1370 | previous link stage, so ignore it here. */ | |
1371 | break; | |
1372 | /* Fall through. */ | |
252b5132 RH |
1373 | default: |
1374 | /* xgettext:c-format */ | |
1375 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
1376 | relocs[i]->howto->bitsize); | |
1377 | break; | |
1378 | } | |
1379 | } | |
1380 | } | |
1381 | free (relocs); | |
86b1cc60 KH |
1382 | /* Warning: the allocated symbols are remembered in BFD and |
1383 | reused later, so don't free them! */ | |
252b5132 RH |
1384 | } |
1385 | } | |
1386 | ||
1387 | /* At this point, we have total_relocs relocation addresses in | |
1388 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1389 | We must now create the new sections. */ |
c6c37250 | 1390 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1391 | |
1392 | for (i = 0; i < total_relocs; i++) | |
1393 | { | |
6ca0987a | 1394 | bfd_vma this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1395 | |
252b5132 RH |
1396 | if (this_page != sec_page) |
1397 | { | |
775cabad | 1398 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1399 | reloc_sz += 8; |
1400 | sec_page = this_page; | |
1401 | } | |
5cc18311 | 1402 | |
252b5132 | 1403 | reloc_sz += 2; |
5cc18311 | 1404 | |
344a211f NC |
1405 | if (reloc_data[i].type == 4) |
1406 | reloc_sz += 2; | |
252b5132 | 1407 | } |
b7a26f91 | 1408 | |
775cabad | 1409 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 | 1410 | reloc_d = xmalloc (reloc_sz); |
6ca0987a | 1411 | sec_page = (bfd_vma) -1; |
252b5132 | 1412 | reloc_sz = 0; |
6ca0987a | 1413 | page_ptr = (bfd_vma) -1; |
252b5132 | 1414 | page_count = 0; |
775cabad | 1415 | |
252b5132 RH |
1416 | for (i = 0; i < total_relocs; i++) |
1417 | { | |
6ca0987a KT |
1418 | bfd_vma rva = reloc_data[i].vma - image_base; |
1419 | bfd_vma this_page = (rva & ~0xfff); | |
775cabad | 1420 | |
252b5132 RH |
1421 | if (this_page != sec_page) |
1422 | { | |
1423 | while (reloc_sz & 3) | |
1424 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1425 | |
6ca0987a | 1426 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1427 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1428 | |
252b5132 RH |
1429 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1430 | page_ptr = reloc_sz; | |
1431 | reloc_sz += 8; | |
1432 | sec_page = this_page; | |
1433 | page_count = 0; | |
1434 | } | |
775cabad | 1435 | |
d643799d | 1436 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1437 | reloc_d + reloc_sz); |
252b5132 | 1438 | reloc_sz += 2; |
775cabad | 1439 | |
c6c37250 DD |
1440 | if (reloc_data[i].type == 4) |
1441 | { | |
1442 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1443 | reloc_sz += 2; | |
1444 | } | |
775cabad | 1445 | |
252b5132 RH |
1446 | page_count++; |
1447 | } | |
775cabad | 1448 | |
252b5132 RH |
1449 | while (reloc_sz & 3) |
1450 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1451 | |
6ca0987a | 1452 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1453 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1454 | |
eea6121a | 1455 | while (reloc_sz < reloc_s->size) |
252b5132 RH |
1456 | reloc_d[reloc_sz++] = 0; |
1457 | } | |
1458 | ||
775cabad NC |
1459 | /* Given the exiting def_file structure, print out a .DEF file that |
1460 | corresponds to it. */ | |
252b5132 RH |
1461 | |
1462 | static void | |
1579bae1 | 1463 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1464 | { |
1465 | char *cp; | |
775cabad | 1466 | |
252b5132 RH |
1467 | for (cp = s; *cp; cp++) |
1468 | if (*cp == '\'' | |
1469 | || *cp == '"' | |
1470 | || *cp == '\\' | |
3882b010 | 1471 | || ISSPACE (*cp) |
252b5132 RH |
1472 | || *cp == ',' |
1473 | || *cp == ';') | |
1474 | needs_quotes = 1; | |
775cabad | 1475 | |
252b5132 RH |
1476 | if (needs_quotes) |
1477 | { | |
1478 | putc ('"', f); | |
775cabad | 1479 | |
252b5132 RH |
1480 | while (*s) |
1481 | { | |
1482 | if (*s == '"' || *s == '\\') | |
1483 | putc ('\\', f); | |
775cabad | 1484 | |
252b5132 RH |
1485 | putc (*s, f); |
1486 | s++; | |
1487 | } | |
775cabad | 1488 | |
252b5132 RH |
1489 | putc ('"', f); |
1490 | } | |
1491 | else | |
1492 | fputs (s, f); | |
1493 | } | |
1494 | ||
1495 | void | |
1579bae1 | 1496 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1497 | { |
1498 | int i; | |
1499 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1500 | |
252b5132 | 1501 | if (out == NULL) |
775cabad NC |
1502 | /* xgettext:c-format */ |
1503 | einfo (_("%s: Can't open output def file %s\n"), | |
1504 | program_name, pe_out_def_filename); | |
252b5132 RH |
1505 | |
1506 | if (pe_def_file) | |
1507 | { | |
1508 | if (pe_def_file->name) | |
1509 | { | |
1510 | if (pe_def_file->is_dll) | |
1511 | fprintf (out, "LIBRARY "); | |
1512 | else | |
1513 | fprintf (out, "NAME "); | |
775cabad | 1514 | |
252b5132 | 1515 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1516 | |
f13a99db | 1517 | if (pe_data (link_info.output_bfd)->pe_opthdr.ImageBase) |
0ead4f8d KT |
1518 | { |
1519 | fprintf (out, " BASE=0x"); | |
1520 | fprintf_vma (out, ((bfd_vma) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase)); | |
1521 | } | |
252b5132 RH |
1522 | fprintf (out, "\n"); |
1523 | } | |
1524 | ||
1525 | if (pe_def_file->description) | |
1526 | { | |
1527 | fprintf (out, "DESCRIPTION "); | |
1528 | quoteput (pe_def_file->description, out, 1); | |
1529 | fprintf (out, "\n"); | |
1530 | } | |
1531 | ||
1532 | if (pe_def_file->version_minor != -1) | |
1533 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1534 | pe_def_file->version_minor); | |
1535 | else if (pe_def_file->version_major != -1) | |
1536 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1537 | ||
1538 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1539 | fprintf (out, "\n"); | |
1540 | ||
1541 | if (pe_def_file->stack_commit != -1) | |
1542 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1543 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1544 | else if (pe_def_file->stack_reserve != -1) | |
1545 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1546 | |
252b5132 RH |
1547 | if (pe_def_file->heap_commit != -1) |
1548 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1549 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1550 | else if (pe_def_file->heap_reserve != -1) | |
1551 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1552 | ||
1553 | if (pe_def_file->num_section_defs > 0) | |
1554 | { | |
1555 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1556 | |
252b5132 RH |
1557 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1558 | { | |
1559 | fprintf (out, " "); | |
1560 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1561 | |
252b5132 RH |
1562 | if (pe_def_file->section_defs[i].class) |
1563 | { | |
1564 | fprintf (out, " CLASS "); | |
1565 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1566 | } | |
775cabad | 1567 | |
252b5132 RH |
1568 | if (pe_def_file->section_defs[i].flag_read) |
1569 | fprintf (out, " READ"); | |
775cabad | 1570 | |
252b5132 RH |
1571 | if (pe_def_file->section_defs[i].flag_write) |
1572 | fprintf (out, " WRITE"); | |
775cabad | 1573 | |
252b5132 RH |
1574 | if (pe_def_file->section_defs[i].flag_execute) |
1575 | fprintf (out, " EXECUTE"); | |
775cabad | 1576 | |
252b5132 RH |
1577 | if (pe_def_file->section_defs[i].flag_shared) |
1578 | fprintf (out, " SHARED"); | |
775cabad | 1579 | |
252b5132 RH |
1580 | fprintf (out, "\n"); |
1581 | } | |
1582 | } | |
1583 | ||
1584 | if (pe_def_file->num_exports > 0) | |
1585 | { | |
b044cda1 | 1586 | fprintf (out, "EXPORTS\n"); |
775cabad | 1587 | |
252b5132 RH |
1588 | for (i = 0; i < pe_def_file->num_exports; i++) |
1589 | { | |
1590 | def_file_export *e = pe_def_file->exports + i; | |
1591 | fprintf (out, " "); | |
1592 | quoteput (e->name, out, 0); | |
775cabad | 1593 | |
252b5132 RH |
1594 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1595 | { | |
1596 | fprintf (out, " = "); | |
1597 | quoteput (e->internal_name, out, 0); | |
1598 | } | |
775cabad | 1599 | |
252b5132 RH |
1600 | if (e->ordinal != -1) |
1601 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1602 | |
252b5132 RH |
1603 | if (e->flag_private) |
1604 | fprintf (out, " PRIVATE"); | |
775cabad | 1605 | |
252b5132 RH |
1606 | if (e->flag_constant) |
1607 | fprintf (out, " CONSTANT"); | |
775cabad | 1608 | |
252b5132 RH |
1609 | if (e->flag_noname) |
1610 | fprintf (out, " NONAME"); | |
775cabad | 1611 | |
252b5132 RH |
1612 | if (e->flag_data) |
1613 | fprintf (out, " DATA"); | |
1614 | ||
1615 | fprintf (out, "\n"); | |
1616 | } | |
1617 | } | |
1618 | ||
1619 | if (pe_def_file->num_imports > 0) | |
1620 | { | |
1621 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1622 | |
252b5132 RH |
1623 | for (i = 0; i < pe_def_file->num_imports; i++) |
1624 | { | |
1625 | def_file_import *im = pe_def_file->imports + i; | |
1626 | fprintf (out, " "); | |
775cabad | 1627 | |
252b5132 RH |
1628 | if (im->internal_name |
1629 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1630 | { | |
1631 | quoteput (im->internal_name, out, 0); | |
1632 | fprintf (out, " = "); | |
1633 | } | |
775cabad | 1634 | |
252b5132 RH |
1635 | quoteput (im->module->name, out, 0); |
1636 | fprintf (out, "."); | |
775cabad | 1637 | |
252b5132 RH |
1638 | if (im->name) |
1639 | quoteput (im->name, out, 0); | |
1640 | else | |
1641 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1642 | |
252b5132 RH |
1643 | fprintf (out, "\n"); |
1644 | } | |
1645 | } | |
1646 | } | |
1647 | else | |
1648 | fprintf (out, _("; no contents available\n")); | |
1649 | ||
1650 | if (fclose (out) == EOF) | |
775cabad NC |
1651 | /* xgettext:c-format */ |
1652 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
252b5132 RH |
1653 | } |
1654 | ||
775cabad | 1655 | /* Generate the import library. */ |
252b5132 RH |
1656 | |
1657 | static asymbol **symtab; | |
1658 | static int symptr; | |
1659 | static int tmp_seq; | |
9382254d | 1660 | static int tmp_seq2; |
252b5132 RH |
1661 | static const char *dll_filename; |
1662 | static char *dll_symname; | |
1663 | ||
1664 | #define UNDSEC (asection *) &bfd_und_section | |
1665 | ||
1666 | static asection * | |
1579bae1 | 1667 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1668 | { |
1669 | asection *sec; | |
1670 | asymbol *sym; | |
1671 | ||
1672 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1673 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1674 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1675 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1676 | sec->output_section = sec; |
1677 | ||
1678 | sym = bfd_make_empty_symbol (abfd); | |
1679 | symtab[symptr++] = sym; | |
1680 | sym->name = sec->name; | |
1681 | sym->section = sec; | |
1682 | sym->flags = BSF_LOCAL; | |
1683 | sym->value = 0; | |
1684 | ||
1685 | return sec; | |
1686 | } | |
1687 | ||
1688 | static void | |
1579bae1 AM |
1689 | quick_symbol (bfd *abfd, |
1690 | const char *n1, | |
1691 | const char *n2, | |
1692 | const char *n3, | |
1693 | asection *sec, | |
1694 | int flags, | |
1695 | int addr) | |
252b5132 RH |
1696 | { |
1697 | asymbol *sym; | |
1579bae1 | 1698 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1699 | |
252b5132 RH |
1700 | strcpy (name, n1); |
1701 | strcat (name, n2); | |
1702 | strcat (name, n3); | |
1703 | sym = bfd_make_empty_symbol (abfd); | |
1704 | sym->name = name; | |
1705 | sym->section = sec; | |
1706 | sym->flags = flags; | |
1707 | sym->value = addr; | |
1708 | symtab[symptr++] = sym; | |
1709 | } | |
1710 | ||
1711 | static arelent *reltab = 0; | |
1712 | static int relcount = 0, relsize = 0; | |
1713 | ||
1714 | static void | |
0ead4f8d | 1715 | quick_reloc (bfd *abfd, bfd_size_type address, int which_howto, int symidx) |
252b5132 | 1716 | { |
1579bae1 | 1717 | if (relcount >= relsize - 1) |
252b5132 RH |
1718 | { |
1719 | relsize += 10; | |
1720 | if (reltab) | |
1579bae1 | 1721 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 1722 | else |
1579bae1 | 1723 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
1724 | } |
1725 | reltab[relcount].address = address; | |
1726 | reltab[relcount].addend = 0; | |
1727 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1728 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1729 | relcount++; | |
1730 | } | |
1731 | ||
1732 | static void | |
1733 | save_relocs (asection *sec) | |
1734 | { | |
1735 | int i; | |
775cabad | 1736 | |
252b5132 RH |
1737 | sec->relocation = reltab; |
1738 | sec->reloc_count = relcount; | |
1579bae1 | 1739 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 1740 | for (i = 0; i < relcount; i++) |
252b5132 RH |
1741 | sec->orelocation[i] = sec->relocation + i; |
1742 | sec->orelocation[relcount] = 0; | |
1743 | sec->flags |= SEC_RELOC; | |
1744 | reltab = 0; | |
1745 | relcount = relsize = 0; | |
1746 | } | |
1747 | ||
775cabad NC |
1748 | /* .section .idata$2 |
1749 | .global __head_my_dll | |
1750 | __head_my_dll: | |
1751 | .rva hname | |
1752 | .long 0 | |
1753 | .long 0 | |
1754 | .rva __my_dll_iname | |
1755 | .rva fthunk | |
b7a26f91 | 1756 | |
775cabad NC |
1757 | .section .idata$5 |
1758 | .long 0 | |
1759 | fthunk: | |
b7a26f91 | 1760 | |
775cabad NC |
1761 | .section .idata$4 |
1762 | .long 0 | |
1763 | hname: */ | |
252b5132 RH |
1764 | |
1765 | static bfd * | |
1579bae1 | 1766 | make_head (bfd *parent) |
252b5132 RH |
1767 | { |
1768 | asection *id2, *id5, *id4; | |
1769 | unsigned char *d2, *d5, *d4; | |
1770 | char *oname; | |
1771 | bfd *abfd; | |
1772 | ||
1579bae1 | 1773 | oname = xmalloc (20); |
252b5132 RH |
1774 | sprintf (oname, "d%06d.o", tmp_seq); |
1775 | tmp_seq++; | |
1776 | ||
1777 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1778 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1779 | bfd_make_writable (abfd); |
1780 | ||
1781 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1782 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1783 | |
1784 | symptr = 0; | |
1579bae1 | 1785 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
1786 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
1787 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1788 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
1789 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1790 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
1791 | |
1792 | /* OK, pay attention here. I got confused myself looking back at | |
1793 | it. We create a four-byte section to mark the beginning of the | |
1794 | list, and we include an offset of 4 in the section, so that the | |
1795 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 1796 | the start of the list of sections from other objects. */ |
252b5132 RH |
1797 | |
1798 | bfd_set_section_size (abfd, id2, 20); | |
1579bae1 | 1799 | d2 = xmalloc (20); |
252b5132 RH |
1800 | id2->contents = d2; |
1801 | memset (d2, 0, 20); | |
ce11ba6c KT |
1802 | if (pe_use_nul_prefixed_import_tables) |
1803 | d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */ | |
252b5132 RH |
1804 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
1805 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1806 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1807 | save_relocs (id2); | |
1808 | ||
ce11ba6c KT |
1809 | if (pe_use_nul_prefixed_import_tables) |
1810 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); | |
1811 | else | |
1812 | bfd_set_section_size (abfd, id5, 0); | |
99ad8390 | 1813 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 1814 | id5->contents = d5; |
99ad8390 | 1815 | memset (d5, 0, PE_IDATA5_SIZE); |
ce11ba6c KT |
1816 | if (pe_use_nul_prefixed_import_tables) |
1817 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); | |
1818 | else | |
1819 | bfd_set_section_size (abfd, id4, 0); | |
99ad8390 | 1820 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 1821 | id4->contents = d4; |
99ad8390 | 1822 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 RH |
1823 | |
1824 | bfd_set_symtab (abfd, symtab, symptr); | |
1825 | ||
1826 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
ce11ba6c KT |
1827 | if (pe_use_nul_prefixed_import_tables) |
1828 | { | |
1829 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
1830 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
1831 | } | |
1832 | else | |
1833 | { | |
1834 | bfd_set_section_contents (abfd, id5, d5, 0, 0); | |
1835 | bfd_set_section_contents (abfd, id4, d4, 0, 0); | |
1836 | } | |
5cc18311 | 1837 | |
252b5132 RH |
1838 | bfd_make_readable (abfd); |
1839 | return abfd; | |
1840 | } | |
1841 | ||
775cabad NC |
1842 | /* .section .idata$4 |
1843 | .long 0 | |
99ad8390 | 1844 | [.long 0] for PE+ |
775cabad NC |
1845 | .section .idata$5 |
1846 | .long 0 | |
99ad8390 | 1847 | [.long 0] for PE+ |
775cabad NC |
1848 | .section idata$7 |
1849 | .global __my_dll_iname | |
1850 | __my_dll_iname: | |
1851 | .asciz "my.dll" */ | |
252b5132 RH |
1852 | |
1853 | static bfd * | |
1579bae1 | 1854 | make_tail (bfd *parent) |
252b5132 RH |
1855 | { |
1856 | asection *id4, *id5, *id7; | |
1857 | unsigned char *d4, *d5, *d7; | |
1858 | int len; | |
1859 | char *oname; | |
1860 | bfd *abfd; | |
1861 | ||
1579bae1 | 1862 | oname = xmalloc (20); |
252b5132 RH |
1863 | sprintf (oname, "d%06d.o", tmp_seq); |
1864 | tmp_seq++; | |
1865 | ||
1866 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1867 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1868 | bfd_make_writable (abfd); |
1869 | ||
1870 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1871 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1872 | |
1873 | symptr = 0; | |
1579bae1 | 1874 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
1875 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
1876 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1877 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 1878 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 | 1879 | |
99ad8390 NC |
1880 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
1881 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 1882 | id4->contents = d4; |
99ad8390 | 1883 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 | 1884 | |
99ad8390 NC |
1885 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
1886 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 1887 | id5->contents = d5; |
99ad8390 | 1888 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 1889 | |
d643799d | 1890 | len = strlen (dll_filename) + 1; |
252b5132 | 1891 | if (len & 1) |
d643799d | 1892 | len++; |
252b5132 | 1893 | bfd_set_section_size (abfd, id7, len); |
1579bae1 | 1894 | d7 = xmalloc (len); |
252b5132 | 1895 | id7->contents = d7; |
47639182 | 1896 | strcpy ((char *) d7, dll_filename); |
e916811a CF |
1897 | /* If len was odd, the above |
1898 | strcpy leaves behind an undefined byte. That is harmless, | |
1899 | but we set it to 0 just so the binary dumps are pretty. */ | |
1900 | d7[len - 1] = 0; | |
252b5132 RH |
1901 | |
1902 | bfd_set_symtab (abfd, symtab, symptr); | |
1903 | ||
99ad8390 NC |
1904 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
1905 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
252b5132 RH |
1906 | bfd_set_section_contents (abfd, id7, d7, 0, len); |
1907 | ||
1908 | bfd_make_readable (abfd); | |
1909 | return abfd; | |
1910 | } | |
1911 | ||
775cabad NC |
1912 | /* .text |
1913 | .global _function | |
1914 | .global ___imp_function | |
1915 | .global __imp__function | |
1916 | _function: | |
1917 | jmp *__imp__function: | |
b7a26f91 | 1918 | |
775cabad NC |
1919 | .section idata$7 |
1920 | .long __head_my_dll | |
b7a26f91 | 1921 | |
775cabad NC |
1922 | .section .idata$5 |
1923 | ___imp_function: | |
1924 | __imp__function: | |
1925 | iat? | |
1926 | .section .idata$4 | |
1927 | iat? | |
1928 | .section .idata$6 | |
1929 | ID<ordinal>: | |
1930 | .short <hint> | |
1931 | .asciz "function" xlate? (add underscore, kill at) */ | |
1932 | ||
e916811a | 1933 | static const unsigned char jmp_ix86_bytes[] = |
775cabad | 1934 | { |
252b5132 RH |
1935 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
1936 | }; | |
1937 | ||
775cabad NC |
1938 | /* _function: |
1939 | mov.l ip+8,r0 | |
1940 | mov.l @r0,r0 | |
1941 | jmp @r0 | |
1942 | nop | |
1943 | .dw __imp_function */ | |
344a211f | 1944 | |
e916811a | 1945 | static const unsigned char jmp_sh_bytes[] = |
775cabad | 1946 | { |
344a211f NC |
1947 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
1948 | }; | |
1949 | ||
775cabad NC |
1950 | /* _function: |
1951 | lui $t0,<high:__imp_function> | |
1952 | lw $t0,<low:__imp_function> | |
1953 | jr $t0 | |
1954 | nop */ | |
344a211f | 1955 | |
e916811a | 1956 | static const unsigned char jmp_mips_bytes[] = |
775cabad | 1957 | { |
344a211f NC |
1958 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
1959 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
1960 | }; | |
252b5132 | 1961 | |
e916811a | 1962 | static const unsigned char jmp_arm_bytes[] = |
53baae48 NC |
1963 | { |
1964 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
1965 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
1966 | 0, 0, 0, 0 | |
1967 | }; | |
1968 | ||
1969 | ||
252b5132 | 1970 | static bfd * |
54727719 | 1971 | make_one (def_file_export *exp, bfd *parent, bfd_boolean include_jmp_stub) |
252b5132 RH |
1972 | { |
1973 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 1974 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
1975 | int len; |
1976 | char *oname; | |
1977 | bfd *abfd; | |
e916811a | 1978 | const unsigned char *jmp_bytes = NULL; |
f0c87f88 | 1979 | int jmp_byte_count = 0; |
c6c37250 | 1980 | |
54727719 NC |
1981 | /* Include the jump stub section only if it is needed. A jump |
1982 | stub is needed if the symbol being imported <sym> is a function | |
1983 | symbol and there is at least one undefined reference to that | |
1984 | symbol. In other words, if all the import references to <sym> are | |
1985 | explicitly through _declspec(dllimport) then the jump stub is not | |
1986 | needed. */ | |
1987 | if (include_jmp_stub) | |
c6c37250 | 1988 | { |
54727719 NC |
1989 | switch (pe_details->pe_arch) |
1990 | { | |
1991 | case PE_ARCH_i386: | |
1992 | jmp_bytes = jmp_ix86_bytes; | |
1993 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
1994 | break; | |
1995 | case PE_ARCH_sh: | |
1996 | jmp_bytes = jmp_sh_bytes; | |
1997 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
1998 | break; | |
1999 | case PE_ARCH_mips: | |
2000 | jmp_bytes = jmp_mips_bytes; | |
2001 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
2002 | break; | |
2003 | case PE_ARCH_arm: | |
2004 | case PE_ARCH_arm_epoc: | |
2005 | case PE_ARCH_arm_wince: | |
2006 | jmp_bytes = jmp_arm_bytes; | |
2007 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
2008 | break; | |
2009 | default: | |
2010 | abort (); | |
2011 | } | |
c6c37250 | 2012 | } |
252b5132 | 2013 | |
1579bae1 | 2014 | oname = xmalloc (20); |
252b5132 RH |
2015 | sprintf (oname, "d%06d.o", tmp_seq); |
2016 | tmp_seq++; | |
2017 | ||
2018 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2019 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2020 | bfd_make_writable (abfd); |
2021 | ||
2022 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2023 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2024 | |
2025 | symptr = 0; | |
1579bae1 | 2026 | symtab = xmalloc (11 * sizeof (asymbol *)); |
252b5132 RH |
2027 | tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); |
2028 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
2029 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2030 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
2031 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 2032 | |
c9e38879 NC |
2033 | if (*exp->internal_name == '@') |
2034 | { | |
1579bae1 AM |
2035 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2036 | BSF_GLOBAL, 0); | |
54727719 | 2037 | if (include_jmp_stub) |
4b7f0676 | 2038 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); |
00479ba8 | 2039 | quick_symbol (abfd, "__imp_", exp->internal_name, "", id5, |
1579bae1 | 2040 | BSF_GLOBAL, 0); |
c9e38879 NC |
2041 | /* Fastcall applies only to functions, |
2042 | so no need for auto-import symbol. */ | |
2043 | } | |
2044 | else | |
2045 | { | |
4b7f0676 NC |
2046 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2047 | BSF_GLOBAL, 0); | |
54727719 | 2048 | if (include_jmp_stub) |
1579bae1 AM |
2049 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
2050 | BSF_GLOBAL, 0); | |
00479ba8 | 2051 | quick_symbol (abfd, "__imp_", U (""), exp->internal_name, id5, |
1579bae1 | 2052 | BSF_GLOBAL, 0); |
c9e38879 | 2053 | /* Symbol to reference ord/name of imported |
1579bae1 | 2054 | data symbol, used to implement auto-import. */ |
c9e38879 | 2055 | if (exp->flag_data) |
00479ba8 | 2056 | quick_symbol (abfd, U ("_nm_"), U (""), exp->internal_name, id6, |
1579bae1 | 2057 | BSF_GLOBAL,0); |
c9e38879 | 2058 | } |
870df5dc | 2059 | if (pe_dll_compat_implib) |
1579bae1 AM |
2060 | quick_symbol (abfd, U ("__imp_"), exp->internal_name, "", id5, |
2061 | BSF_GLOBAL, 0); | |
252b5132 | 2062 | |
54727719 | 2063 | if (include_jmp_stub) |
775cabad NC |
2064 | { |
2065 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1579bae1 | 2066 | td = xmalloc (jmp_byte_count); |
775cabad NC |
2067 | tx->contents = td; |
2068 | memcpy (td, jmp_bytes, jmp_byte_count); | |
2069 | ||
2070 | switch (pe_details->pe_arch) | |
2071 | { | |
2072 | case PE_ARCH_i386: | |
591a748a NC |
2073 | #ifdef pe_use_x86_64 |
2074 | quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2); | |
2075 | #else | |
2076 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); | |
2077 | #endif | |
775cabad NC |
2078 | break; |
2079 | case PE_ARCH_sh: | |
2080 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
2081 | break; | |
2082 | case PE_ARCH_mips: | |
2083 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
2084 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
2085 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
2086 | break; | |
53baae48 | 2087 | case PE_ARCH_arm: |
7148cc28 NC |
2088 | case PE_ARCH_arm_epoc: |
2089 | case PE_ARCH_arm_wince: | |
53baae48 NC |
2090 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
2091 | break; | |
775cabad NC |
2092 | default: |
2093 | abort (); | |
2094 | } | |
2095 | save_relocs (tx); | |
2096 | } | |
54727719 NC |
2097 | else |
2098 | bfd_set_section_size (abfd, tx, 0); | |
252b5132 RH |
2099 | |
2100 | bfd_set_section_size (abfd, id7, 4); | |
1579bae1 | 2101 | d7 = xmalloc (4); |
252b5132 RH |
2102 | id7->contents = d7; |
2103 | memset (d7, 0, 4); | |
4b7f0676 | 2104 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
2105 | save_relocs (id7); |
2106 | ||
99ad8390 NC |
2107 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
2108 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 2109 | id5->contents = d5; |
99ad8390 | 2110 | memset (d5, 0, PE_IDATA5_SIZE); |
775cabad | 2111 | |
252b5132 RH |
2112 | if (exp->flag_noname) |
2113 | { | |
2114 | d5[0] = exp->ordinal; | |
2115 | d5[1] = exp->ordinal >> 8; | |
99ad8390 | 2116 | d5[PE_IDATA5_SIZE - 1] = 0x80; |
252b5132 RH |
2117 | } |
2118 | else | |
2119 | { | |
2120 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2121 | save_relocs (id5); | |
2122 | } | |
2123 | ||
99ad8390 NC |
2124 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2125 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 2126 | id4->contents = d4; |
99ad8390 | 2127 | memset (d4, 0, PE_IDATA4_SIZE); |
775cabad | 2128 | |
252b5132 RH |
2129 | if (exp->flag_noname) |
2130 | { | |
c2a94a7a DD |
2131 | d4[0] = exp->ordinal; |
2132 | d4[1] = exp->ordinal >> 8; | |
99ad8390 | 2133 | d4[PE_IDATA4_SIZE - 1] = 0x80; |
252b5132 RH |
2134 | } |
2135 | else | |
2136 | { | |
2137 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2138 | save_relocs (id4); | |
2139 | } | |
2140 | ||
2141 | if (exp->flag_noname) | |
2142 | { | |
2143 | len = 0; | |
2144 | bfd_set_section_size (abfd, id6, 0); | |
2145 | } | |
2146 | else | |
2147 | { | |
e916811a CF |
2148 | /* { short, asciz } */ |
2149 | len = 2 + strlen (exp->name) + 1; | |
252b5132 RH |
2150 | if (len & 1) |
2151 | len++; | |
2152 | bfd_set_section_size (abfd, id6, len); | |
1579bae1 | 2153 | d6 = xmalloc (len); |
252b5132 RH |
2154 | id6->contents = d6; |
2155 | memset (d6, 0, len); | |
2156 | d6[0] = exp->hint & 0xff; | |
2157 | d6[1] = exp->hint >> 8; | |
47639182 | 2158 | strcpy ((char *) d6 + 2, exp->name); |
252b5132 RH |
2159 | } |
2160 | ||
2161 | bfd_set_symtab (abfd, symtab, symptr); | |
2162 | ||
54727719 NC |
2163 | if (include_jmp_stub) |
2164 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); | |
252b5132 | 2165 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
99ad8390 NC |
2166 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
2167 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
252b5132 RH |
2168 | if (!exp->flag_noname) |
2169 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
2170 | ||
2171 | bfd_make_readable (abfd); | |
2172 | return abfd; | |
2173 | } | |
2174 | ||
9382254d KT |
2175 | static bfd * |
2176 | make_singleton_name_imp (const char *import, bfd *parent) | |
2177 | { | |
2178 | /* Name thunks go to idata$4. */ | |
2179 | asection *id5; | |
2180 | unsigned char *d5; | |
2181 | char *oname; | |
2182 | bfd *abfd; | |
2183 | ||
2184 | oname = xmalloc (20); | |
2185 | sprintf (oname, "nmimp%06d.o", tmp_seq2); | |
2186 | tmp_seq2++; | |
2187 | ||
2188 | abfd = bfd_create (oname, parent); | |
2189 | bfd_find_target (pe_details->object_target, abfd); | |
2190 | bfd_make_writable (abfd); | |
2191 | ||
2192 | bfd_set_format (abfd, bfd_object); | |
2193 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2194 | ||
2195 | symptr = 0; | |
2196 | symtab = xmalloc (3 * sizeof (asymbol *)); | |
2197 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2198 | quick_symbol (abfd, U ("_imp_"), import, "", id5, BSF_GLOBAL, 0); | |
2199 | ||
2200 | /* We need space for the real thunk and for the null terminator. */ | |
2201 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE * 2); | |
2202 | d5 = xmalloc (PE_IDATA5_SIZE * 2); | |
2203 | id5->contents = d5; | |
2204 | memset (d5, 0, PE_IDATA5_SIZE * 2); | |
2205 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
2206 | save_relocs (id5); | |
2207 | ||
2208 | bfd_set_symtab (abfd, symtab, symptr); | |
2209 | ||
2210 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA4_SIZE * 2); | |
2211 | ||
2212 | bfd_make_readable (abfd); | |
2213 | return abfd; | |
2214 | } | |
2215 | ||
b044cda1 | 2216 | static bfd * |
1579bae1 | 2217 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2218 | { |
775cabad | 2219 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2220 | asection *id4; |
2221 | unsigned char *d4; | |
2222 | char *oname; | |
2223 | bfd *abfd; | |
2224 | ||
1579bae1 | 2225 | oname = xmalloc (20); |
b044cda1 CW |
2226 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2227 | tmp_seq++; | |
2228 | ||
2229 | abfd = bfd_create (oname, parent); | |
2230 | bfd_find_target (pe_details->object_target, abfd); | |
2231 | bfd_make_writable (abfd); | |
2232 | ||
2233 | bfd_set_format (abfd, bfd_object); | |
2234 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2235 | ||
2236 | symptr = 0; | |
1579bae1 | 2237 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 CW |
2238 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
2239 | quick_symbol (abfd, U ("_nm_thnk_"), import, "", id4, BSF_GLOBAL, 0); | |
2240 | quick_symbol (abfd, U ("_nm_"), import, "", UNDSEC, BSF_GLOBAL, 0); | |
2241 | ||
4e986257 CF |
2242 | /* We need space for the real thunk and for the null terminator. */ |
2243 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE * 2); | |
2244 | d4 = xmalloc (PE_IDATA4_SIZE * 2); | |
b044cda1 | 2245 | id4->contents = d4; |
4e986257 | 2246 | memset (d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2247 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2248 | save_relocs (id4); | |
2249 | ||
2250 | bfd_set_symtab (abfd, symtab, symptr); | |
2251 | ||
4e986257 | 2252 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2253 | |
2254 | bfd_make_readable (abfd); | |
2255 | return abfd; | |
2256 | } | |
2257 | ||
2258 | static char * | |
1579bae1 | 2259 | make_import_fixup_mark (arelent *rel) |
b044cda1 | 2260 | { |
775cabad | 2261 | /* We convert reloc to symbol, for later reference. */ |
b044cda1 CW |
2262 | static int counter; |
2263 | static char *fixup_name = NULL; | |
db09f25b | 2264 | static size_t buffer_len = 0; |
b7a26f91 | 2265 | |
fc0a2244 | 2266 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b7a26f91 | 2267 | |
b044cda1 | 2268 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2269 | struct bfd_link_hash_entry *bh; |
b044cda1 CW |
2270 | |
2271 | if (!fixup_name) | |
2272 | { | |
1579bae1 | 2273 | fixup_name = xmalloc (384); |
b044cda1 CW |
2274 | buffer_len = 384; |
2275 | } | |
2276 | ||
2277 | if (strlen (sym->name) + 25 > buffer_len) | |
b7a26f91 | 2278 | /* Assume 25 chars for "__fu" + counter + "_". If counter is |
b044cda1 | 2279 | bigger than 20 digits long, we've got worse problems than |
775cabad | 2280 | overflowing this buffer... */ |
b044cda1 CW |
2281 | { |
2282 | free (fixup_name); | |
a35bc64f NC |
2283 | /* New buffer size is length of symbol, plus 25, but |
2284 | then rounded up to the nearest multiple of 128. */ | |
b044cda1 | 2285 | buffer_len = ((strlen (sym->name) + 25) + 127) & ~127; |
1579bae1 | 2286 | fixup_name = xmalloc (buffer_len); |
b044cda1 | 2287 | } |
b7a26f91 | 2288 | |
b044cda1 CW |
2289 | sprintf (fixup_name, "__fu%d_%s", counter++, sym->name); |
2290 | ||
fe213ce2 | 2291 | bh = NULL; |
b7a26f91 | 2292 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2293 | current_sec, /* sym->section, */ |
b34976b6 | 2294 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 | 2295 | |
b044cda1 CW |
2296 | return fixup_name; |
2297 | } | |
2298 | ||
53baae48 | 2299 | /* .section .idata$2 |
775cabad NC |
2300 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2301 | .long 0 | |
2302 | .long 0 | |
2303 | .rva __my_dll_iname (name of dll) | |
2304 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2305 | |
2306 | static bfd * | |
1579bae1 AM |
2307 | make_import_fixup_entry (const char *name, |
2308 | const char *fixup_name, | |
2309 | const char *dll_symname, | |
2310 | bfd *parent) | |
b044cda1 | 2311 | { |
53baae48 NC |
2312 | asection *id2; |
2313 | unsigned char *d2; | |
b044cda1 CW |
2314 | char *oname; |
2315 | bfd *abfd; | |
2316 | ||
1579bae1 | 2317 | oname = xmalloc (20); |
b044cda1 CW |
2318 | sprintf (oname, "fu%06d.o", tmp_seq); |
2319 | tmp_seq++; | |
2320 | ||
2321 | abfd = bfd_create (oname, parent); | |
2322 | bfd_find_target (pe_details->object_target, abfd); | |
2323 | bfd_make_writable (abfd); | |
2324 | ||
2325 | bfd_set_format (abfd, bfd_object); | |
2326 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2327 | ||
2328 | symptr = 0; | |
1579bae1 | 2329 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2330 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2331 | |
b044cda1 CW |
2332 | quick_symbol (abfd, U ("_nm_thnk_"), name, "", UNDSEC, BSF_GLOBAL, 0); |
2333 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
9382254d KT |
2334 | /* For relocator v2 we have to use the .idata$5 element and not |
2335 | fixup_name. */ | |
2336 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
2337 | quick_symbol (abfd, U ("_imp_"), name, "", UNDSEC, BSF_GLOBAL, 0); | |
2338 | else | |
2339 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2340 | |
53baae48 NC |
2341 | bfd_set_section_size (abfd, id2, 20); |
2342 | d2 = xmalloc (20); | |
2343 | id2->contents = d2; | |
2344 | memset (d2, 0, 20); | |
b044cda1 CW |
2345 | |
2346 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2347 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2348 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2349 | save_relocs (id2); |
b044cda1 CW |
2350 | |
2351 | bfd_set_symtab (abfd, symtab, symptr); | |
2352 | ||
53baae48 | 2353 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2354 | |
2355 | bfd_make_readable (abfd); | |
2356 | return abfd; | |
2357 | } | |
2358 | ||
2fa9fc65 NC |
2359 | /* .section .rdata_runtime_pseudo_reloc |
2360 | .long addend | |
2361 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2362 | ||
2363 | static bfd * | |
1579bae1 AM |
2364 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2365 | const char *fixup_name, | |
6cb442d3 KT |
2366 | bfd_vma addend ATTRIBUTE_UNUSED, |
2367 | bfd_vma bitsize, | |
1579bae1 | 2368 | bfd *parent) |
2fa9fc65 NC |
2369 | { |
2370 | asection *rt_rel; | |
2371 | unsigned char *rt_rel_d; | |
2372 | char *oname; | |
2373 | bfd *abfd; | |
1579bae1 | 2374 | oname = xmalloc (20); |
2fa9fc65 NC |
2375 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2376 | tmp_seq++; | |
2377 | ||
2378 | abfd = bfd_create (oname, parent); | |
2379 | bfd_find_target (pe_details->object_target, abfd); | |
2380 | bfd_make_writable (abfd); | |
2381 | ||
2382 | bfd_set_format (abfd, bfd_object); | |
2383 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2384 | ||
2385 | symptr = 0; | |
acac4c69 KT |
2386 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2387 | { | |
2388 | symtab = xmalloc ((runtime_pseudp_reloc_v2_init ? 3 : 6) * sizeof (asymbol *)); | |
2389 | } | |
2390 | else | |
2391 | { | |
2392 | symtab = xmalloc (2 * sizeof (asymbol *)); | |
2393 | } | |
1579bae1 AM |
2394 | rt_rel = quick_section (abfd, ".rdata_runtime_pseudo_reloc", |
2395 | SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2396 | |
2397 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2398 | ||
6cb442d3 KT |
2399 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2400 | { | |
2401 | size_t size = 12; | |
2402 | if (! runtime_pseudp_reloc_v2_init) | |
2403 | { | |
2404 | size += 12; | |
2405 | runtime_pseudp_reloc_v2_init = 1; | |
2406 | } | |
2407 | quick_symbol (abfd, U ("_imp_"), name, "", UNDSEC, BSF_GLOBAL, 0); | |
2408 | ||
2409 | bfd_set_section_size (abfd, rt_rel, size); | |
2410 | rt_rel_d = xmalloc (size); | |
2411 | rt_rel->contents = rt_rel_d; | |
2412 | memset (rt_rel_d, 0, size); | |
2413 | quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1); | |
2414 | quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2); | |
2415 | bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4)); | |
2416 | if (size != 12) | |
2417 | bfd_put_32 (abfd, 1, rt_rel_d + 8); | |
2418 | save_relocs (rt_rel); | |
2419 | ||
2420 | bfd_set_symtab (abfd, symtab, symptr); | |
2421 | ||
2422 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, size); | |
2423 | } | |
2424 | else | |
2425 | { | |
2426 | bfd_set_section_size (abfd, rt_rel, 8); | |
2427 | rt_rel_d = xmalloc (8); | |
2428 | rt_rel->contents = rt_rel_d; | |
2429 | memset (rt_rel_d, 0, 8); | |
2fa9fc65 | 2430 | |
6cb442d3 KT |
2431 | bfd_put_32 (abfd, addend, rt_rel_d); |
2432 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2fa9fc65 | 2433 | |
6cb442d3 | 2434 | save_relocs (rt_rel); |
2fa9fc65 | 2435 | |
6cb442d3 | 2436 | bfd_set_symtab (abfd, symtab, symptr); |
2fa9fc65 | 2437 | |
6cb442d3 KT |
2438 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); |
2439 | } | |
2fa9fc65 NC |
2440 | bfd_make_readable (abfd); |
2441 | return abfd; | |
2442 | } | |
2443 | ||
2444 | /* .section .rdata | |
a35bc64f | 2445 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2446 | |
2447 | static bfd * | |
1579bae1 | 2448 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2449 | { |
2450 | asection *extern_rt_rel; | |
2451 | unsigned char *extern_rt_rel_d; | |
2452 | char *oname; | |
2453 | bfd *abfd; | |
2454 | ||
1579bae1 | 2455 | oname = xmalloc (20); |
2fa9fc65 NC |
2456 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2457 | tmp_seq++; | |
2458 | ||
2459 | abfd = bfd_create (oname, parent); | |
2460 | bfd_find_target (pe_details->object_target, abfd); | |
2461 | bfd_make_writable (abfd); | |
2462 | ||
2463 | bfd_set_format (abfd, bfd_object); | |
2464 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2465 | ||
2466 | symptr = 0; | |
1579bae1 | 2467 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2468 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2469 | ||
00479ba8 | 2470 | quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC, |
1579bae1 | 2471 | BSF_NO_FLAGS, 0); |
2fa9fc65 | 2472 | |
9382254d KT |
2473 | bfd_set_section_size (abfd, extern_rt_rel, PE_IDATA5_SIZE); |
2474 | extern_rt_rel_d = xmalloc (PE_IDATA5_SIZE); | |
2fa9fc65 NC |
2475 | extern_rt_rel->contents = extern_rt_rel_d; |
2476 | ||
2477 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2478 | save_relocs (extern_rt_rel); | |
2479 | ||
2480 | bfd_set_symtab (abfd, symtab, symptr); | |
2481 | ||
9382254d | 2482 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2483 | |
2484 | bfd_make_readable (abfd); | |
2485 | return abfd; | |
2486 | } | |
2487 | ||
b044cda1 | 2488 | void |
6cb442d3 | 2489 | pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend) |
b044cda1 CW |
2490 | { |
2491 | char buf[300]; | |
fc0a2244 | 2492 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2493 | struct bfd_link_hash_entry *name_thunk_sym; |
9382254d | 2494 | struct bfd_link_hash_entry *name_imp_sym; |
db09f25b | 2495 | const char *name = sym->name; |
b044cda1 | 2496 | char *fixup_name = make_import_fixup_mark (rel); |
2fa9fc65 | 2497 | bfd *b; |
9382254d KT |
2498 | int need_import_table = 1; |
2499 | ||
2500 | sprintf (buf, U ("_imp_%s"), name); | |
2501 | name_imp_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
b044cda1 CW |
2502 | |
2503 | sprintf (buf, U ("_nm_thnk_%s"), name); | |
2504 | ||
2505 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
2506 | ||
9382254d KT |
2507 | /* For version 2 pseudo relocation we don't need to add an import |
2508 | if the import symbol is already present. */ | |
2509 | if (link_info.pei386_runtime_pseudo_reloc == 2 | |
2510 | && name_imp_sym | |
2511 | && name_imp_sym->type == bfd_link_hash_defined) | |
2512 | need_import_table = 0; | |
2513 | ||
2514 | if (need_import_table == 1 | |
2515 | && (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined)) | |
b044cda1 | 2516 | { |
f13a99db | 2517 | bfd *b = make_singleton_name_thunk (name, link_info.output_bfd); |
b044cda1 CW |
2518 | add_bfd_to_link (b, b->filename, &link_info); |
2519 | ||
9382254d KT |
2520 | /* If we ever use autoimport, we have to cast text section writable. |
2521 | But not for version 2. */ | |
2522 | if (link_info.pei386_runtime_pseudo_reloc != 2) | |
2523 | { | |
2524 | config.text_read_only = FALSE; | |
2525 | link_info.output_bfd->flags &= ~WP_TEXT; | |
2526 | } | |
2527 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
2528 | { | |
2529 | b = make_singleton_name_imp (name, link_info.output_bfd); | |
2530 | add_bfd_to_link (b, b->filename, &link_info); | |
2531 | } | |
b044cda1 CW |
2532 | } |
2533 | ||
9382254d KT |
2534 | if ((addend == 0 || link_info.pei386_runtime_pseudo_reloc) |
2535 | && need_import_table == 1) | |
2fa9fc65 NC |
2536 | { |
2537 | extern char * pe_data_import_dll; | |
2538 | char * dll_symname = pe_data_import_dll ? pe_data_import_dll : "unknown"; | |
aa3d9aba | 2539 | |
f13a99db AM |
2540 | b = make_import_fixup_entry (name, fixup_name, dll_symname, |
2541 | link_info.output_bfd); | |
2fa9fc65 NC |
2542 | add_bfd_to_link (b, b->filename, &link_info); |
2543 | } | |
2544 | ||
6cb442d3 KT |
2545 | if ((link_info.pei386_runtime_pseudo_reloc != 0 && addend != 0) |
2546 | || link_info.pei386_runtime_pseudo_reloc == 2) | |
2547 | { | |
2548 | if (pe_dll_extra_pe_debug) | |
2549 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2550 | fixup_name, (int) addend); | |
2551 | ||
2552 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, rel->howto->bitsize, | |
2553 | link_info.output_bfd); | |
2554 | add_bfd_to_link (b, b->filename, &link_info); | |
2555 | ||
2556 | if (runtime_pseudo_relocs_created == 0) | |
2557 | { | |
2558 | b = pe_create_runtime_relocator_reference (link_info.output_bfd); | |
2559 | add_bfd_to_link (b, b->filename, &link_info); | |
2560 | } | |
2561 | runtime_pseudo_relocs_created++; | |
2562 | } | |
2563 | else if (addend != 0) | |
2564 | { | |
2565 | einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"), | |
2566 | s->owner, s, rel->address, sym->name); | |
2567 | einfo ("%X"); | |
2568 | } | |
b044cda1 CW |
2569 | } |
2570 | ||
2571 | ||
252b5132 | 2572 | void |
e1c37eb5 | 2573 | pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info) |
252b5132 RH |
2574 | { |
2575 | int i; | |
2576 | bfd *ar_head; | |
2577 | bfd *ar_tail; | |
2578 | bfd *outarch; | |
e1c37eb5 | 2579 | bfd *ibfd; |
252b5132 RH |
2580 | bfd *head = 0; |
2581 | ||
5aaace27 | 2582 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2583 | dll_symname = xstrdup (dll_filename); |
d643799d | 2584 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2585 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2586 | dll_symname[i] = '_'; |
2587 | ||
bb14f524 | 2588 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2589 | |
2590 | outarch = bfd_openw (impfilename, 0); | |
2591 | ||
2592 | if (!outarch) | |
2593 | { | |
2594 | /* xgettext:c-format */ | |
2595 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
2596 | return; | |
2597 | } | |
2598 | ||
2599 | /* xgettext:c-format */ | |
63d85248 | 2600 | info_msg (_("Creating library file: %s\n"), impfilename); |
9382254d | 2601 | |
252b5132 RH |
2602 | bfd_set_format (outarch, bfd_archive); |
2603 | outarch->has_armap = 1; | |
2604 | ||
5cc18311 | 2605 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2606 | ar_head = make_head (outarch); |
252b5132 | 2607 | |
e1c37eb5 DK |
2608 | /* Iterate the input BFDs, looking for exclude-modules-for-implib. */ |
2609 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
2610 | { | |
2611 | /* Iterate the exclude list. */ | |
2612 | struct exclude_list_struct *ex; | |
2613 | char found; | |
2614 | for (ex = excludes, found = 0; ex && !found; ex = ex->next) | |
2615 | { | |
2616 | if (ex->type != EXCLUDEFORIMPLIB) | |
2617 | continue; | |
2618 | found = (strcmp (ex->string, ibfd->filename) == 0); | |
2619 | } | |
2620 | /* If it matched, we must open a fresh BFD for it (the original | |
2621 | input BFD is still needed for the DLL's final link) and add | |
2622 | it into the archive member chain. */ | |
2623 | if (found) | |
2624 | { | |
9382254d | 2625 | bfd *newbfd = bfd_openr (ibfd->my_archive |
e1c37eb5 DK |
2626 | ? ibfd->my_archive->filename : ibfd->filename, NULL); |
2627 | if (!newbfd) | |
2628 | { | |
2629 | einfo (_("%Xbfd_openr %s: %E\n"), ibfd->filename); | |
2630 | return; | |
2631 | } | |
2632 | if (ibfd->my_archive) | |
2633 | { | |
2634 | /* Must now iterate through archive until we find the | |
2635 | required member. A minor shame that we'll open the | |
2636 | archive once per member that we require from it, and | |
2637 | leak those archive bfds rather than reuse them. */ | |
2638 | bfd *arbfd = newbfd; | |
2639 | if (!bfd_check_format_matches (arbfd, bfd_archive, NULL)) | |
2640 | { | |
9382254d | 2641 | einfo (_("%X%s(%s): can't find member in non-archive file"), |
e1c37eb5 DK |
2642 | ibfd->my_archive->filename, ibfd->filename); |
2643 | return; | |
2644 | } | |
2645 | newbfd = NULL; | |
2646 | while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0) | |
2647 | { | |
2648 | if (strcmp (newbfd->filename, ibfd->filename) == 0) | |
2649 | break; | |
2650 | } | |
2651 | if (!newbfd) | |
2652 | { | |
9382254d | 2653 | einfo (_("%X%s(%s): can't find member in archive"), |
e1c37eb5 DK |
2654 | ibfd->my_archive->filename, ibfd->filename); |
2655 | return; | |
2656 | } | |
2657 | } | |
2658 | newbfd->archive_next = head; | |
2659 | head = newbfd; | |
2660 | } | |
2661 | } | |
2662 | ||
d643799d | 2663 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2664 | { |
86b1cc60 | 2665 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2666 | char *internal = def->exports[i].internal_name; |
2667 | bfd *n; | |
775cabad | 2668 | |
9382254d | 2669 | /* Don't add PRIVATE entries to import lib. */ |
ee31fbd0 NC |
2670 | if (pe_def_file->exports[i].flag_private) |
2671 | continue; | |
252b5132 | 2672 | def->exports[i].internal_name = def->exports[i].name; |
54727719 NC |
2673 | n = make_one (def->exports + i, outarch, |
2674 | ! (def->exports + i)->flag_data); | |
cc481421 | 2675 | n->archive_next = head; |
252b5132 RH |
2676 | head = n; |
2677 | def->exports[i].internal_name = internal; | |
2678 | } | |
2679 | ||
c6c37250 DD |
2680 | ar_tail = make_tail (outarch); |
2681 | ||
2682 | if (ar_head == NULL || ar_tail == NULL) | |
2683 | return; | |
2684 | ||
86b1cc60 | 2685 | /* Now stick them all into the archive. */ |
cc481421 AM |
2686 | ar_head->archive_next = head; |
2687 | ar_tail->archive_next = ar_head; | |
252b5132 RH |
2688 | head = ar_tail; |
2689 | ||
2690 | if (! bfd_set_archive_head (outarch, head)) | |
36230712 | 2691 | einfo ("%Xbfd_set_archive_head: %E\n"); |
5cc18311 | 2692 | |
252b5132 | 2693 | if (! bfd_close (outarch)) |
36230712 | 2694 | einfo ("%Xbfd_close %s: %E\n", impfilename); |
252b5132 RH |
2695 | |
2696 | while (head != NULL) | |
2697 | { | |
cc481421 | 2698 | bfd *n = head->archive_next; |
252b5132 RH |
2699 | bfd_close (head); |
2700 | head = n; | |
2701 | } | |
2702 | } | |
2703 | ||
2704 | static void | |
1579bae1 | 2705 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *link_info) |
252b5132 RH |
2706 | { |
2707 | lang_input_statement_type *fake_file; | |
775cabad | 2708 | |
252b5132 RH |
2709 | fake_file = lang_add_input_file (name, |
2710 | lang_input_file_is_fake_enum, | |
2711 | NULL); | |
2712 | fake_file->the_bfd = abfd; | |
2713 | ldlang_add_file (fake_file); | |
775cabad | 2714 | |
252b5132 | 2715 | if (!bfd_link_add_symbols (abfd, link_info)) |
36230712 | 2716 | einfo ("%Xaddsym %s: %E\n", name); |
252b5132 RH |
2717 | } |
2718 | ||
2719 | void | |
1579bae1 | 2720 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *link_info) |
252b5132 RH |
2721 | { |
2722 | def_file_module *module; | |
775cabad | 2723 | |
d643799d | 2724 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
2725 | |
2726 | if (!pe_def_file) | |
2727 | return; | |
2728 | ||
2729 | for (module = pe_def_file->modules; module; module = module->next) | |
2730 | { | |
2731 | int i, do_this_dll; | |
2732 | ||
2733 | dll_filename = module->name; | |
2734 | dll_symname = xstrdup (module->name); | |
d643799d | 2735 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2736 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2737 | dll_symname[i] = '_'; |
2738 | ||
2739 | do_this_dll = 0; | |
2740 | ||
d643799d | 2741 | for (i = 0; i < pe_def_file->num_imports; i++) |
252b5132 RH |
2742 | if (pe_def_file->imports[i].module == module) |
2743 | { | |
2744 | def_file_export exp; | |
2745 | struct bfd_link_hash_entry *blhe; | |
b34976b6 | 2746 | int lead_at = (*pe_def_file->imports[i].internal_name == '@'); |
86b1cc60 | 2747 | /* See if we need this import. */ |
1579bae1 AM |
2748 | size_t len = strlen (pe_def_file->imports[i].internal_name); |
2749 | char *name = xmalloc (len + 2 + 6); | |
54727719 | 2750 | bfd_boolean include_jmp_stub = FALSE; |
c9e38879 NC |
2751 | |
2752 | if (lead_at) | |
00479ba8 | 2753 | sprintf (name, "%s", |
1579bae1 | 2754 | pe_def_file->imports[i].internal_name); |
c9e38879 | 2755 | else |
1579bae1 AM |
2756 | sprintf (name, "%s%s",U (""), |
2757 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2758 | |
252b5132 | 2759 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2760 | FALSE, FALSE, FALSE); |
c9e38879 | 2761 | |
54727719 NC |
2762 | /* Include the jump stub for <sym> only if the <sym> |
2763 | is undefined. */ | |
874c8c99 DD |
2764 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
2765 | { | |
c9e38879 | 2766 | if (lead_at) |
9382254d | 2767 | sprintf (name, "%s%s", "__imp_", |
c9e38879 NC |
2768 | pe_def_file->imports[i].internal_name); |
2769 | else | |
00479ba8 | 2770 | sprintf (name, "%s%s%s", "__imp_", U (""), |
c9e38879 NC |
2771 | pe_def_file->imports[i].internal_name); |
2772 | ||
874c8c99 | 2773 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2774 | FALSE, FALSE, FALSE); |
874c8c99 | 2775 | } |
54727719 NC |
2776 | else |
2777 | include_jmp_stub = TRUE; | |
2778 | ||
252b5132 | 2779 | free (name); |
c9e38879 | 2780 | |
252b5132 RH |
2781 | if (blhe && blhe->type == bfd_link_hash_undefined) |
2782 | { | |
2783 | bfd *one; | |
86b1cc60 | 2784 | /* We do. */ |
252b5132 RH |
2785 | if (!do_this_dll) |
2786 | { | |
2787 | bfd *ar_head = make_head (output_bfd); | |
2788 | add_bfd_to_link (ar_head, ar_head->filename, link_info); | |
2789 | do_this_dll = 1; | |
2790 | } | |
2791 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
2792 | exp.name = pe_def_file->imports[i].name; | |
2793 | exp.ordinal = pe_def_file->imports[i].ordinal; | |
2794 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
2795 | exp.flag_private = 0; | |
2796 | exp.flag_constant = 0; | |
939ba9d0 | 2797 | exp.flag_data = pe_def_file->imports[i].data; |
252b5132 | 2798 | exp.flag_noname = exp.name ? 0 : 1; |
54727719 | 2799 | one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub); |
252b5132 RH |
2800 | add_bfd_to_link (one, one->filename, link_info); |
2801 | } | |
2802 | } | |
2803 | if (do_this_dll) | |
2804 | { | |
2805 | bfd *ar_tail = make_tail (output_bfd); | |
2806 | add_bfd_to_link (ar_tail, ar_tail->filename, link_info); | |
2807 | } | |
2808 | ||
2809 | free (dll_symname); | |
2810 | } | |
2811 | } | |
2812 | ||
775cabad | 2813 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
2814 | IMPORTS directives in the def file. Return TRUE if the file was |
2815 | handled, FALSE if not. */ | |
252b5132 RH |
2816 | |
2817 | static unsigned int | |
1579bae1 | 2818 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
2819 | { |
2820 | unsigned char b[2]; | |
775cabad | 2821 | |
db09f25b AM |
2822 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2823 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 2824 | return b[0] + (b[1] << 8); |
252b5132 RH |
2825 | } |
2826 | ||
2827 | static unsigned int | |
1579bae1 | 2828 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
2829 | { |
2830 | unsigned char b[4]; | |
775cabad | 2831 | |
db09f25b AM |
2832 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2833 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 2834 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2835 | } |
2836 | ||
252b5132 | 2837 | static unsigned int |
1579bae1 | 2838 | pe_as32 (void *ptr) |
252b5132 RH |
2839 | { |
2840 | unsigned char *b = ptr; | |
775cabad | 2841 | |
d643799d | 2842 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2843 | } |
2844 | ||
b34976b6 | 2845 | bfd_boolean |
1579bae1 | 2846 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
2847 | { |
2848 | bfd *dll; | |
6ca0987a KT |
2849 | bfd_vma pe_header_offset, opthdr_ofs, num_entries, i; |
2850 | bfd_vma export_rva, export_size, nsections, secptr, expptr; | |
2851 | bfd_vma exp_funcbase; | |
47639182 AM |
2852 | unsigned char *expdata; |
2853 | char *erva; | |
6ca0987a | 2854 | bfd_vma name_rvas, ordinals, nexp, ordbase; |
1069dd8d | 2855 | const char *dll_name; |
939ba9d0 NC |
2856 | /* Initialization with start > end guarantees that is_data |
2857 | will not be set by mistake, and avoids compiler warning. */ | |
6ca0987a KT |
2858 | bfd_vma data_start = 1; |
2859 | bfd_vma data_end = 0; | |
2860 | bfd_vma rdata_start = 1; | |
2861 | bfd_vma rdata_end = 0; | |
2862 | bfd_vma bss_start = 1; | |
2863 | bfd_vma bss_end = 0; | |
252b5132 RH |
2864 | |
2865 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 2866 | the middle of the .rdata section. */ |
c6c37250 | 2867 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
2868 | if (!dll) |
2869 | { | |
36230712 | 2870 | einfo ("%Xopen %s: %E\n", filename); |
b34976b6 | 2871 | return FALSE; |
252b5132 | 2872 | } |
775cabad | 2873 | |
86b1cc60 | 2874 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
2875 | if (!bfd_check_format (dll, bfd_object)) |
2876 | { | |
2877 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
b34976b6 | 2878 | return FALSE; |
252b5132 RH |
2879 | } |
2880 | ||
939ba9d0 | 2881 | /* Get pe_header, optional header and numbers of export entries. */ |
252b5132 RH |
2882 | pe_header_offset = pe_get32 (dll, 0x3c); |
2883 | opthdr_ofs = pe_header_offset + 4 + 20; | |
99ad8390 NC |
2884 | #ifdef pe_use_x86_64 |
2885 | num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */ | |
2886 | #else | |
252b5132 | 2887 | num_entries = pe_get32 (dll, opthdr_ofs + 92); |
99ad8390 | 2888 | #endif |
775cabad NC |
2889 | |
2890 | if (num_entries < 1) /* No exports. */ | |
b34976b6 | 2891 | return FALSE; |
775cabad | 2892 | |
99ad8390 NC |
2893 | #ifdef pe_use_x86_64 |
2894 | export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4); | |
2895 | export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4); | |
2896 | #else | |
252b5132 RH |
2897 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
2898 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
99ad8390 | 2899 | #endif |
9382254d | 2900 | |
252b5132 RH |
2901 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); |
2902 | secptr = (pe_header_offset + 4 + 20 + | |
2903 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
2904 | expptr = 0; | |
775cabad | 2905 | |
1579bae1 | 2906 | /* Get the rva and size of the export section. */ |
d643799d | 2907 | for (i = 0; i < nsections; i++) |
252b5132 RH |
2908 | { |
2909 | char sname[8]; | |
6ca0987a KT |
2910 | bfd_vma secptr1 = secptr + 40 * i; |
2911 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
2912 | bfd_vma vsize = pe_get32 (dll, secptr1 + 16); | |
2913 | bfd_vma fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 2914 | |
db09f25b AM |
2915 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
2916 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 2917 | |
d643799d | 2918 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
2919 | { |
2920 | expptr = fptr + (export_rva - vaddr); | |
2921 | if (export_rva + export_size > vaddr + vsize) | |
2922 | export_size = vsize - (export_rva - vaddr); | |
2923 | break; | |
2924 | } | |
2925 | } | |
2926 | ||
939ba9d0 | 2927 | /* Scan sections and store the base and size of the |
1579bae1 | 2928 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
2929 | for (i = 0; i < nsections; i++) |
2930 | { | |
6ca0987a KT |
2931 | bfd_vma secptr1 = secptr + 40 * i; |
2932 | bfd_vma vsize = pe_get32 (dll, secptr1 + 8); | |
2933 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
2934 | bfd_vma flags = pe_get32 (dll, secptr1 + 36); | |
939ba9d0 NC |
2935 | char sec_name[9]; |
2936 | ||
2937 | sec_name[8] = '\0'; | |
2938 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
2939 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
2940 | ||
2941 | if (strcmp(sec_name,".data") == 0) | |
2942 | { | |
2943 | data_start = vaddr; | |
2944 | data_end = vaddr + vsize; | |
2945 | ||
661a32f7 DS |
2946 | if (pe_dll_extra_pe_debug) |
2947 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
2948 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
2949 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
661a32f7 DS |
2950 | } |
2951 | else if (strcmp(sec_name,".rdata") == 0) | |
2952 | { | |
2953 | rdata_start = vaddr; | |
2954 | rdata_end = vaddr + vsize; | |
2955 | ||
939ba9d0 NC |
2956 | if (pe_dll_extra_pe_debug) |
2957 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
2958 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
2959 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
1579bae1 | 2960 | } |
939ba9d0 NC |
2961 | else if (strcmp (sec_name,".bss") == 0) |
2962 | { | |
2963 | bss_start = vaddr; | |
2964 | bss_end = vaddr + vsize; | |
2965 | ||
2966 | if (pe_dll_extra_pe_debug) | |
2967 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
2968 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
2969 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
939ba9d0 NC |
2970 | } |
2971 | } | |
2972 | ||
1579bae1 | 2973 | expdata = xmalloc (export_size); |
db09f25b AM |
2974 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
2975 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 2976 | erva = (char *) expdata - export_rva; |
252b5132 RH |
2977 | |
2978 | if (pe_def_file == 0) | |
d643799d | 2979 | pe_def_file = def_file_empty (); |
252b5132 | 2980 | |
d643799d KH |
2981 | nexp = pe_as32 (expdata + 24); |
2982 | name_rvas = pe_as32 (expdata + 32); | |
2983 | ordinals = pe_as32 (expdata + 36); | |
2984 | ordbase = pe_as32 (expdata + 16); | |
939ba9d0 | 2985 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 2986 | |
939ba9d0 NC |
2987 | /* Use internal dll name instead of filename |
2988 | to enable symbolic dll linking. */ | |
47639182 | 2989 | dll_name = erva + pe_as32 (expdata + 12); |
939ba9d0 | 2990 | |
a35bc64f NC |
2991 | /* Check to see if the dll has already been added to |
2992 | the definition list and if so return without error. | |
2993 | This avoids multiple symbol definitions. */ | |
2994 | if (def_get_module (pe_def_file, dll_name)) | |
2995 | { | |
2996 | if (pe_dll_extra_pe_debug) | |
2997 | printf ("%s is already loaded\n", dll_name); | |
2998 | return TRUE; | |
2999 | } | |
3000 | ||
939ba9d0 | 3001 | /* Iterate through the list of symbols. */ |
d643799d | 3002 | for (i = 0; i < nexp; i++) |
252b5132 | 3003 | { |
939ba9d0 | 3004 | /* Pointer to the names vector. */ |
6ca0987a | 3005 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 3006 | def_file_import *imp; |
1579bae1 | 3007 | /* Pointer to the function address vector. */ |
6ca0987a | 3008 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
939ba9d0 NC |
3009 | int is_data = 0; |
3010 | ||
3011 | /* Skip unwanted symbols, which are | |
3012 | exported in buggy auto-import releases. */ | |
0112cd26 | 3013 | if (! CONST_STRNEQ (erva + name_rva, "_nm_")) |
939ba9d0 | 3014 | { |
661a32f7 DS |
3015 | /* is_data is true if the address is in the data, rdata or bss |
3016 | segment. */ | |
939ba9d0 NC |
3017 | is_data = |
3018 | (func_rva >= data_start && func_rva < data_end) | |
661a32f7 | 3019 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
3020 | || (func_rva >= bss_start && func_rva < bss_end); |
3021 | ||
3022 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
3023 | dll_name, i, 0); | |
396a2467 | 3024 | /* Mark symbol type. */ |
939ba9d0 | 3025 | imp->data = is_data; |
1579bae1 | 3026 | |
939ba9d0 NC |
3027 | if (pe_dll_extra_pe_debug) |
3028 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
3029 | __FUNCTION__, dll_name, erva + name_rva, | |
6ca0987a | 3030 | (unsigned long) func_rva, is_data ? "(data)" : ""); |
939ba9d0 | 3031 | } |
252b5132 RH |
3032 | } |
3033 | ||
b34976b6 | 3034 | return TRUE; |
252b5132 RH |
3035 | } |
3036 | ||
88183869 DK |
3037 | void |
3038 | pe_output_file_set_long_section_names (bfd *abfd) | |
3039 | { | |
3040 | if (pe_use_coff_long_section_names < 0) | |
3041 | return; | |
3042 | if (!bfd_coff_set_long_section_names (abfd, pe_use_coff_long_section_names)) | |
3043 | einfo (_("%XError: can't use long section names on this arch\n")); | |
3044 | } | |
3045 | ||
775cabad NC |
3046 | /* These are the main functions, called from the emulation. The first |
3047 | is called after the bfds are read, so we can guess at how much space | |
3048 | we need. The second is called after everything is placed, so we | |
3049 | can put the right values in place. */ | |
252b5132 RH |
3050 | |
3051 | void | |
1579bae1 | 3052 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3053 | { |
c6c37250 | 3054 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3055 | pe_output_file_set_long_section_names (abfd); |
252b5132 RH |
3056 | process_def_file (abfd, info); |
3057 | ||
1579bae1 | 3058 | if (pe_def_file->num_exports == 0 && !info->shared) |
2b817be1 NC |
3059 | return; |
3060 | ||
252b5132 | 3061 | generate_edata (abfd, info); |
c6c37250 | 3062 | build_filler_bfd (1); |
88183869 | 3063 | pe_output_file_set_long_section_names (filler_bfd); |
c6c37250 DD |
3064 | } |
3065 | ||
3066 | void | |
1579bae1 | 3067 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
3068 | { |
3069 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3070 | pe_output_file_set_long_section_names (abfd); |
c6c37250 | 3071 | build_filler_bfd (0); |
88183869 | 3072 | pe_output_file_set_long_section_names (filler_bfd); |
252b5132 RH |
3073 | } |
3074 | ||
3075 | void | |
1579bae1 | 3076 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3077 | { |
c6c37250 | 3078 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3079 | pe_output_file_set_long_section_names (abfd); |
252b5132 RH |
3080 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3081 | ||
3082 | generate_reloc (abfd, info); | |
3083 | if (reloc_sz > 0) | |
3084 | { | |
3085 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3086 | ||
3087 | /* Resize the sections. */ | |
38975f9e | 3088 | lang_reset_memory_regions (); |
e9ee469a | 3089 | lang_size_sections (NULL, TRUE); |
252b5132 RH |
3090 | |
3091 | /* Redo special stuff. */ | |
3092 | ldemul_after_allocation (); | |
3093 | ||
3094 | /* Do the assignments again. */ | |
e9ee469a | 3095 | lang_do_assignments (); |
252b5132 RH |
3096 | } |
3097 | ||
3098 | fill_edata (abfd, info); | |
3099 | ||
db8acf26 | 3100 | if (info->shared && !info->pie) |
2b817be1 | 3101 | pe_data (abfd)->dll = 1; |
252b5132 RH |
3102 | |
3103 | edata_s->contents = edata_d; | |
3104 | reloc_s->contents = reloc_d; | |
3105 | } | |
c6c37250 DD |
3106 | |
3107 | void | |
1579bae1 | 3108 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
3109 | { |
3110 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3111 | pe_output_file_set_long_section_names (abfd); |
c6c37250 DD |
3112 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3113 | ||
3114 | generate_reloc (abfd, info); | |
3115 | if (reloc_sz > 0) | |
3116 | { | |
3117 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3118 | ||
3119 | /* Resize the sections. */ | |
38975f9e | 3120 | lang_reset_memory_regions (); |
e9ee469a | 3121 | lang_size_sections (NULL, TRUE); |
c6c37250 DD |
3122 | |
3123 | /* Redo special stuff. */ | |
3124 | ldemul_after_allocation (); | |
3125 | ||
3126 | /* Do the assignments again. */ | |
e9ee469a | 3127 | lang_do_assignments (); |
c6c37250 DD |
3128 | } |
3129 | reloc_s->contents = reloc_d; | |
3130 | } | |
ff2bdb9c CF |
3131 | |
3132 | bfd_boolean | |
3133 | pe_bfd_is_dll (bfd *abfd) | |
3134 | { | |
3135 | return (bfd_get_format (abfd) == bfd_object | |
3136 | && obj_pe (abfd) | |
3137 | && pe_data (abfd)->dll); | |
3138 | } |