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