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; |
252b5132 | 158 | |
775cabad | 159 | /* Static variables and types. */ |
252b5132 RH |
160 | |
161 | static bfd_vma image_base; | |
252b5132 | 162 | static bfd *filler_bfd; |
198beae2 | 163 | static struct bfd_section *edata_s, *reloc_s; |
252b5132 | 164 | static unsigned char *edata_d, *reloc_d; |
1069dd8d | 165 | static size_t edata_sz, reloc_sz; |
2fa9fc65 | 166 | static int runtime_pseudo_relocs_created = 0; |
6cb442d3 | 167 | static int runtime_pseudp_reloc_v2_init = 0; |
252b5132 | 168 | |
775cabad | 169 | typedef struct |
5b8273bf | 170 | { |
e916811a | 171 | const char *name; |
5b8273bf NC |
172 | int len; |
173 | } | |
174 | autofilter_entry_type; | |
775cabad NC |
175 | |
176 | typedef struct | |
5b8273bf | 177 | { |
e916811a CF |
178 | const char *target_name; |
179 | const char *object_target; | |
5b8273bf NC |
180 | unsigned int imagebase_reloc; |
181 | int pe_arch; | |
182 | int bfd_arch; | |
183 | bfd_boolean underscored; | |
e916811a | 184 | const autofilter_entry_type* autofilter_symbollist; |
5b8273bf NC |
185 | } |
186 | pe_details_type; | |
187 | ||
e916811a | 188 | static const autofilter_entry_type autofilter_symbollist_generic[] = |
5b8273bf | 189 | { |
b92216aa | 190 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 191 | /* Entry point symbols. */ |
0112cd26 NC |
192 | { STRING_COMMA_LEN ("DllMain") }, |
193 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
194 | { STRING_COMMA_LEN ("_DllMainCRTStartup") }, | |
5b8273bf | 195 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
196 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
197 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
db86b2dc | 198 | { NULL, 0 } |
5b8273bf NC |
199 | }; |
200 | ||
e916811a | 201 | static const autofilter_entry_type autofilter_symbollist_i386[] = |
5b8273bf | 202 | { |
b92216aa | 203 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 204 | /* Entry point symbols, and entry hooks. */ |
0112cd26 | 205 | { STRING_COMMA_LEN ("cygwin_crt0") }, |
880383ca NC |
206 | #ifdef pe_use_x86_64 |
207 | { STRING_COMMA_LEN ("DllMain") }, | |
208 | { STRING_COMMA_LEN ("DllEntryPoint") }, | |
209 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
210 | { STRING_COMMA_LEN ("_cygwin_dll_entry") }, | |
211 | { STRING_COMMA_LEN ("_cygwin_crt0_common") }, | |
212 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry") }, | |
213 | #else | |
0112cd26 NC |
214 | { STRING_COMMA_LEN ("DllMain@12") }, |
215 | { STRING_COMMA_LEN ("DllEntryPoint@0") }, | |
216 | { STRING_COMMA_LEN ("DllMainCRTStartup@12") }, | |
217 | { STRING_COMMA_LEN ("_cygwin_dll_entry@12") }, | |
218 | { STRING_COMMA_LEN ("_cygwin_crt0_common@8") }, | |
219 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry@12") }, | |
220 | { STRING_COMMA_LEN ("cygwin_attach_dll") }, | |
880383ca | 221 | #endif |
0112cd26 NC |
222 | { STRING_COMMA_LEN ("cygwin_premain0") }, |
223 | { STRING_COMMA_LEN ("cygwin_premain1") }, | |
224 | { STRING_COMMA_LEN ("cygwin_premain2") }, | |
225 | { STRING_COMMA_LEN ("cygwin_premain3") }, | |
5b8273bf | 226 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
227 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
228 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
5b8273bf | 229 | /* Global vars that should not be exported. */ |
0112cd26 NC |
230 | { STRING_COMMA_LEN ("impure_ptr") }, |
231 | { STRING_COMMA_LEN ("_impure_ptr") }, | |
232 | { STRING_COMMA_LEN ("_fmode") }, | |
233 | { STRING_COMMA_LEN ("environ") }, | |
db86b2dc | 234 | { NULL, 0 } |
5b8273bf | 235 | }; |
b044cda1 | 236 | |
5b8273bf NC |
237 | #define PE_ARCH_i386 1 |
238 | #define PE_ARCH_sh 2 | |
239 | #define PE_ARCH_mips 3 | |
240 | #define PE_ARCH_arm 4 | |
775cabad | 241 | #define PE_ARCH_arm_epoc 5 |
7148cc28 | 242 | #define PE_ARCH_arm_wince 6 |
c6c37250 | 243 | |
e916811a | 244 | static const pe_details_type pe_detail_list[] = |
775cabad | 245 | { |
c6c37250 | 246 | { |
99ad8390 NC |
247 | #ifdef pe_use_x86_64 |
248 | "pei-x86-64", | |
249 | "pe-x86-64", | |
250 | 3 /* R_IMAGEBASE */, | |
251 | #else | |
c6c37250 DD |
252 | "pei-i386", |
253 | "pe-i386", | |
254 | 7 /* R_IMAGEBASE */, | |
99ad8390 | 255 | #endif |
c6c37250 DD |
256 | PE_ARCH_i386, |
257 | bfd_arch_i386, | |
5b8273bf NC |
258 | TRUE, |
259 | autofilter_symbollist_i386 | |
c6c37250 | 260 | }, |
344a211f NC |
261 | { |
262 | "pei-shl", | |
263 | "pe-shl", | |
264 | 16 /* R_SH_IMAGEBASE */, | |
265 | PE_ARCH_sh, | |
266 | bfd_arch_sh, | |
5b8273bf NC |
267 | TRUE, |
268 | autofilter_symbollist_generic | |
344a211f NC |
269 | }, |
270 | { | |
271 | "pei-mips", | |
272 | "pe-mips", | |
273 | 34 /* MIPS_R_RVA */, | |
274 | PE_ARCH_mips, | |
275 | bfd_arch_mips, | |
5b8273bf NC |
276 | FALSE, |
277 | autofilter_symbollist_generic | |
344a211f NC |
278 | }, |
279 | { | |
280 | "pei-arm-little", | |
281 | "pe-arm-little", | |
282 | 11 /* ARM_RVA32 */, | |
283 | PE_ARCH_arm, | |
284 | bfd_arch_arm, | |
5b8273bf NC |
285 | TRUE, |
286 | autofilter_symbollist_generic | |
344a211f | 287 | }, |
775cabad NC |
288 | { |
289 | "epoc-pei-arm-little", | |
290 | "epoc-pe-arm-little", | |
291 | 11 /* ARM_RVA32 */, | |
292 | PE_ARCH_arm_epoc, | |
293 | bfd_arch_arm, | |
5b8273bf NC |
294 | FALSE, |
295 | autofilter_symbollist_generic | |
775cabad | 296 | }, |
7148cc28 NC |
297 | { |
298 | "pei-arm-wince-little", | |
299 | "pe-arm-wince-little", | |
300 | 2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */ | |
301 | PE_ARCH_arm_wince, | |
302 | bfd_arch_arm, | |
303 | FALSE, | |
304 | autofilter_symbollist_generic | |
305 | }, | |
5b8273bf | 306 | { NULL, NULL, 0, 0, 0, FALSE, NULL } |
c6c37250 DD |
307 | }; |
308 | ||
e916811a | 309 | static const pe_details_type *pe_details; |
c6c37250 | 310 | |
775cabad | 311 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
e916811a | 312 | static const autofilter_entry_type autofilter_liblist[] = |
775cabad | 313 | { |
0112cd26 NC |
314 | { STRING_COMMA_LEN ("libcegcc") }, |
315 | { STRING_COMMA_LEN ("libcygwin") }, | |
316 | { STRING_COMMA_LEN ("libgcc") }, | |
81b07b16 | 317 | { STRING_COMMA_LEN ("libgcc_s") }, |
0112cd26 NC |
318 | { STRING_COMMA_LEN ("libstdc++") }, |
319 | { STRING_COMMA_LEN ("libmingw32") }, | |
320 | { STRING_COMMA_LEN ("libmingwex") }, | |
321 | { STRING_COMMA_LEN ("libg2c") }, | |
322 | { STRING_COMMA_LEN ("libsupc++") }, | |
323 | { STRING_COMMA_LEN ("libobjc") }, | |
324 | { STRING_COMMA_LEN ("libgcj") }, | |
db86b2dc | 325 | { NULL, 0 } |
b044cda1 | 326 | }; |
775cabad | 327 | |
81b07b16 DK |
328 | /* Regardless of the suffix issue mentioned above, we must ensure that |
329 | we do not falsely match on a leading substring, such as when libtool | |
330 | builds libstdc++ as a DLL using libsupc++convenience.a as an intermediate. | |
331 | This routine ensures that the leading part of the name matches and that | |
332 | it is followed by only an optional version suffix and a file extension, | |
333 | returning zero if so or -1 if not. */ | |
334 | static int libnamencmp (const char *libname, const autofilter_entry_type *afptr) | |
335 | { | |
336 | if (strncmp (libname, afptr->name, afptr->len)) | |
337 | return -1; | |
338 | ||
339 | libname += afptr->len; | |
340 | ||
341 | /* Be liberal in interpreting what counts as a version suffix; we | |
342 | accept anything that has a dash to separate it from the name and | |
343 | begins with a digit. */ | |
344 | if (libname[0] == '-') | |
345 | { | |
346 | if (!ISDIGIT (*++libname)) | |
347 | return -1; | |
348 | /* Ensure the filename has an extension. */ | |
349 | while (*++libname != '.') | |
350 | if (!*libname) | |
351 | return -1; | |
352 | } | |
353 | else if (libname[0] != '.') | |
354 | return -1; | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
e916811a | 359 | static const autofilter_entry_type autofilter_objlist[] = |
775cabad | 360 | { |
0112cd26 NC |
361 | { STRING_COMMA_LEN ("crt0.o") }, |
362 | { STRING_COMMA_LEN ("crt1.o") }, | |
363 | { STRING_COMMA_LEN ("crt2.o") }, | |
364 | { STRING_COMMA_LEN ("dllcrt1.o") }, | |
365 | { STRING_COMMA_LEN ("dllcrt2.o") }, | |
366 | { STRING_COMMA_LEN ("gcrt0.o") }, | |
367 | { STRING_COMMA_LEN ("gcrt1.o") }, | |
368 | { STRING_COMMA_LEN ("gcrt2.o") }, | |
369 | { STRING_COMMA_LEN ("crtbegin.o") }, | |
370 | { STRING_COMMA_LEN ("crtend.o") }, | |
db86b2dc | 371 | { NULL, 0 } |
b044cda1 | 372 | }; |
775cabad | 373 | |
e916811a | 374 | static const autofilter_entry_type autofilter_symbolprefixlist[] = |
775cabad | 375 | { |
00479ba8 NC |
376 | /* _imp_ is treated specially, as it is always underscored. */ |
377 | /* { STRING_COMMA_LEN ("_imp_") }, */ | |
378 | /* Don't export some c++ symbols. */ | |
0112cd26 | 379 | { STRING_COMMA_LEN ("__rtti_") }, |
00479ba8 | 380 | { STRING_COMMA_LEN ("__builtin_") }, |
39cebe23 | 381 | /* Don't re-export auto-imported symbols. */ |
0112cd26 | 382 | { STRING_COMMA_LEN ("_nm_") }, |
775cabad | 383 | /* Don't export symbols specifying internal DLL layout. */ |
0112cd26 | 384 | { STRING_COMMA_LEN ("_head_") }, |
b92216aa DS |
385 | { STRING_COMMA_LEN ("_IMPORT_DESCRIPTOR_") }, |
386 | /* Don't export section labels or artificial symbols | |
387 | (eg ".weak.foo". */ | |
388 | { STRING_COMMA_LEN (".") }, | |
db86b2dc | 389 | { NULL, 0 } |
b044cda1 | 390 | }; |
775cabad | 391 | |
e916811a | 392 | static const autofilter_entry_type autofilter_symbolsuffixlist[] = |
775cabad | 393 | { |
0112cd26 | 394 | { STRING_COMMA_LEN ("_iname") }, |
b92216aa | 395 | { STRING_COMMA_LEN ("_NULL_THUNK_DATA") }, |
db86b2dc | 396 | { NULL, 0 } |
b044cda1 CW |
397 | }; |
398 | ||
c6c37250 DD |
399 | #define U(str) (pe_details->underscored ? "_" str : str) |
400 | ||
401 | void | |
1579bae1 | 402 | pe_dll_id_target (const char *target) |
c6c37250 DD |
403 | { |
404 | int i; | |
775cabad | 405 | |
d643799d | 406 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
407 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
408 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 409 | { |
d643799d | 410 | pe_details = pe_detail_list + i; |
c6c37250 DD |
411 | return; |
412 | } | |
413 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
414 | exit (1); | |
415 | } | |
416 | ||
b7a26f91 | 417 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 418 | them out by pages. */ |
252b5132 | 419 | |
775cabad NC |
420 | typedef struct |
421 | { | |
422 | bfd_vma vma; | |
423 | char type; | |
424 | short extra; | |
425 | } | |
426 | reloc_data_type; | |
c6c37250 | 427 | |
252b5132 | 428 | static int |
1579bae1 | 429 | reloc_sort (const void *va, const void *vb) |
252b5132 | 430 | { |
1579bae1 AM |
431 | bfd_vma a = ((const reloc_data_type *) va)->vma; |
432 | bfd_vma b = ((const reloc_data_type *) vb)->vma; | |
775cabad | 433 | |
c6c37250 | 434 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
435 | } |
436 | ||
437 | static int | |
1579bae1 | 438 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 439 | { |
1579bae1 AM |
440 | const def_file_export *a = va; |
441 | const def_file_export *b = vb; | |
775cabad | 442 | |
252b5132 RH |
443 | return strcmp (a->name, b->name); |
444 | } | |
445 | ||
775cabad | 446 | /* Read and process the .DEF file. */ |
252b5132 RH |
447 | |
448 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
449 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 450 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
451 | |
452 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 453 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
454 | static int export_table_size; |
455 | static int count_exported; | |
456 | static int count_exported_byname; | |
457 | static int count_with_ordinals; | |
458 | static const char *dll_name; | |
459 | static int min_ordinal, max_ordinal; | |
460 | static int *exported_symbols; | |
461 | ||
775cabad NC |
462 | typedef struct exclude_list_struct |
463 | { | |
464 | char *string; | |
465 | struct exclude_list_struct *next; | |
e1c37eb5 | 466 | exclude_type type; |
775cabad NC |
467 | } |
468 | exclude_list_struct; | |
86b1cc60 | 469 | |
252b5132 RH |
470 | static struct exclude_list_struct *excludes = 0; |
471 | ||
472 | void | |
e1c37eb5 | 473 | pe_dll_add_excludes (const char *new_excludes, const exclude_type type) |
252b5132 RH |
474 | { |
475 | char *local_copy; | |
476 | char *exclude_string; | |
477 | ||
478 | local_copy = xstrdup (new_excludes); | |
479 | ||
480 | exclude_string = strtok (local_copy, ",:"); | |
481 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
482 | { | |
483 | struct exclude_list_struct *new_exclude; | |
484 | ||
1579bae1 AM |
485 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
486 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 487 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 488 | new_exclude->type = type; |
252b5132 RH |
489 | new_exclude->next = excludes; |
490 | excludes = new_exclude; | |
491 | } | |
492 | ||
493 | free (local_copy); | |
494 | } | |
495 | ||
00479ba8 NC |
496 | static bfd_boolean |
497 | is_import (const char* n) | |
498 | { | |
e916811a | 499 | return (CONST_STRNEQ (n, "__imp_")); |
00479ba8 | 500 | } |
70b0be79 | 501 | |
775cabad NC |
502 | /* abfd is a bfd containing n (or NULL) |
503 | It can be used for contextual checks. */ | |
504 | ||
252b5132 | 505 | static int |
1579bae1 | 506 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 RH |
507 | { |
508 | int i; | |
509 | struct exclude_list_struct *ex; | |
e916811a | 510 | const autofilter_entry_type *afptr; |
70b0be79 CF |
511 | const char * libname = 0; |
512 | if (abfd && abfd->my_archive) | |
513 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 514 | |
252b5132 RH |
515 | for (i = 0; i < d->num_exports; i++) |
516 | if (strcmp (d->exports[i].name, n) == 0) | |
517 | return 0; | |
775cabad | 518 | |
252b5132 RH |
519 | if (pe_dll_do_default_excludes) |
520 | { | |
663dd378 | 521 | const char * p; |
775cabad NC |
522 | int len; |
523 | ||
b044cda1 | 524 | if (pe_dll_extra_pe_debug) |
775cabad NC |
525 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
526 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
527 | |
528 | /* First of all, make context checks: | |
1579bae1 | 529 | Don't export anything from standard libs. */ |
658957db | 530 | if (libname) |
b044cda1 CW |
531 | { |
532 | afptr = autofilter_liblist; | |
775cabad | 533 | |
b044cda1 CW |
534 | while (afptr->name) |
535 | { | |
81b07b16 | 536 | if (libnamencmp (libname, afptr) == 0 ) |
b044cda1 CW |
537 | return 0; |
538 | afptr++; | |
539 | } | |
540 | } | |
541 | ||
775cabad | 542 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 543 | |
59d28a94 | 544 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 545 | { |
b7a26f91 KH |
546 | afptr = autofilter_objlist; |
547 | while (afptr->name) | |
59d28a94 | 548 | { |
b7a26f91 KH |
549 | if (strcmp (p, afptr->name) == 0) |
550 | return 0; | |
59d28a94 | 551 | afptr++; |
663dd378 | 552 | } |
775cabad | 553 | } |
b044cda1 CW |
554 | |
555 | /* Don't try to blindly exclude all symbols | |
556 | that begin with '__'; this was tried and | |
5b8273bf NC |
557 | it is too restrictive. Instead we have |
558 | a target specific list to use: */ | |
559 | afptr = pe_details->autofilter_symbollist; | |
99ad8390 | 560 | |
b044cda1 CW |
561 | while (afptr->name) |
562 | { | |
563 | if (strcmp (n, afptr->name) == 0) | |
564 | return 0; | |
775cabad | 565 | |
b7a26f91 | 566 | afptr++; |
b044cda1 CW |
567 | } |
568 | ||
775cabad | 569 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
570 | afptr = autofilter_symbolprefixlist; |
571 | while (afptr->name) | |
572 | { | |
573 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
574 | return 0; | |
775cabad | 575 | |
b7a26f91 | 576 | afptr++; |
b044cda1 CW |
577 | } |
578 | ||
775cabad NC |
579 | /* Finally, exclude symbols ending with ... */ |
580 | len = strlen (n); | |
581 | afptr = autofilter_symbolsuffixlist; | |
582 | while (afptr->name) | |
583 | { | |
b7a26f91 | 584 | if ((len >= afptr->len) |
775cabad | 585 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
586 | && strncmp (n + len - afptr->len, afptr->name, |
587 | afptr->len + 1) == 0) | |
775cabad NC |
588 | return 0; |
589 | ||
b7a26f91 | 590 | afptr++; |
775cabad | 591 | } |
252b5132 | 592 | } |
775cabad | 593 | |
252b5132 | 594 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 | 595 | { |
e1c37eb5 | 596 | if (ex->type == EXCLUDELIBS) |
70b0be79 CF |
597 | { |
598 | if (libname | |
599 | && ((strcmp (libname, ex->string) == 0) | |
600 | || (strcasecmp ("ALL", ex->string) == 0))) | |
601 | return 0; | |
602 | } | |
e1c37eb5 DK |
603 | else if (ex->type == EXCLUDEFORIMPLIB) |
604 | { | |
605 | if (strcmp (abfd->filename, ex->string) == 0) | |
606 | return 0; | |
607 | } | |
70b0be79 | 608 | else if (strcmp (n, ex->string) == 0) |
658957db | 609 | return 0; |
70b0be79 | 610 | } |
775cabad | 611 | |
252b5132 RH |
612 | return 1; |
613 | } | |
614 | ||
615 | static void | |
1579bae1 | 616 | process_def_file (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
617 | { |
618 | int i, j; | |
619 | struct bfd_link_hash_entry *blhe; | |
620 | bfd *b; | |
198beae2 | 621 | struct bfd_section *s; |
d643799d | 622 | def_file_export *e = 0; |
252b5132 RH |
623 | |
624 | if (!pe_def_file) | |
625 | pe_def_file = def_file_empty (); | |
626 | ||
627 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 628 | sections, and push those into the def file too. */ |
252b5132 RH |
629 | for (b = info->input_bfds; b; b = b->link_next) |
630 | { | |
631 | s = bfd_get_section_by_name (b, ".drectve"); | |
632 | if (s) | |
633 | { | |
eea6121a | 634 | long size = s->size; |
252b5132 | 635 | char *buf = xmalloc (size); |
775cabad | 636 | |
252b5132 RH |
637 | bfd_get_section_contents (b, s, buf, 0, size); |
638 | def_file_add_directive (pe_def_file, buf, size); | |
639 | free (buf); | |
640 | } | |
641 | } | |
642 | ||
2b817be1 NC |
643 | /* If we are not building a DLL, when there are no exports |
644 | we do not build an export table at all. */ | |
645 | if (!pe_dll_export_everything && pe_def_file->num_exports == 0 | |
7b0eaa22 | 646 | && info->executable) |
2b817be1 NC |
647 | return; |
648 | ||
86b1cc60 | 649 | /* Now, maybe export everything else the default way. */ |
252b5132 RH |
650 | if (pe_dll_export_everything || pe_def_file->num_exports == 0) |
651 | { | |
652 | for (b = info->input_bfds; b; b = b->link_next) | |
653 | { | |
654 | asymbol **symbols; | |
5c1d2f5f | 655 | int nsyms; |
252b5132 | 656 | |
5c1d2f5f AM |
657 | if (!bfd_generic_link_read_symbols (b)) |
658 | { | |
659 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
660 | return; | |
661 | } | |
662 | ||
663 | symbols = bfd_get_outsymbols (b); | |
664 | nsyms = bfd_get_symcount (b); | |
252b5132 RH |
665 | |
666 | for (j = 0; j < nsyms; j++) | |
667 | { | |
d643799d | 668 | /* We should export symbols which are either global or not |
1579bae1 AM |
669 | anything at all. (.bss data is the latter) |
670 | We should not export undefined symbols. */ | |
b044cda1 CW |
671 | if (symbols[j]->section != &bfd_und_section |
672 | && ((symbols[j]->flags & BSF_GLOBAL) | |
e7c33416 | 673 | || (symbols[j]->flags == 0))) |
252b5132 RH |
674 | { |
675 | const char *sn = symbols[j]->name; | |
b044cda1 | 676 | |
775cabad | 677 | /* We should not re-export imported stuff. */ |
b044cda1 | 678 | { |
e916811a | 679 | char *name; |
00479ba8 NC |
680 | if (is_import (sn)) |
681 | continue; | |
682 | ||
e916811a | 683 | name = xmalloc (strlen ("__imp_") + strlen (sn) + 1); |
00479ba8 | 684 | sprintf (name, "%s%s", "__imp_", sn); |
775cabad | 685 | |
b044cda1 | 686 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 687 | FALSE, FALSE, FALSE); |
b044cda1 CW |
688 | free (name); |
689 | ||
b7a26f91 | 690 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
691 | continue; |
692 | } | |
693 | ||
00479ba8 | 694 | if (pe_details->underscored && *sn == '_') |
252b5132 | 695 | sn++; |
775cabad | 696 | |
b044cda1 CW |
697 | if (auto_export (b, pe_def_file, sn)) |
698 | { | |
699 | def_file_export *p; | |
700 | p=def_file_add_export (pe_def_file, sn, 0, -1); | |
775cabad | 701 | /* Fill data flag properly, from dlltool.c. */ |
b044cda1 CW |
702 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
703 | } | |
252b5132 RH |
704 | } |
705 | } | |
706 | } | |
707 | } | |
708 | ||
709 | #undef NE | |
710 | #define NE pe_def_file->num_exports | |
711 | ||
86b1cc60 | 712 | /* Canonicalize the export list. */ |
252b5132 RH |
713 | if (pe_dll_kill_ats) |
714 | { | |
715 | for (i = 0; i < NE; i++) | |
716 | { | |
717 | if (strchr (pe_def_file->exports[i].name, '@')) | |
718 | { | |
86b1cc60 | 719 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
720 | pointing to the same memory as name, or might not |
721 | have. */ | |
722 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 723 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
a8d701fd | 724 | char *tmp_at = strchr (tmp, '@'); |
775cabad | 725 | |
a8d701fd DS |
726 | if (tmp_at) |
727 | *tmp_at = 0; | |
728 | else | |
729 | einfo (_("%XCannot export %s: invalid export name\n"), | |
730 | pe_def_file->exports[i].name); | |
252b5132 RH |
731 | pe_def_file->exports[i].name = tmp; |
732 | } | |
733 | } | |
734 | } | |
735 | ||
736 | if (pe_dll_stdcall_aliases) | |
737 | { | |
738 | for (i = 0; i < NE; i++) | |
739 | { | |
00479ba8 NC |
740 | if (is_import (pe_def_file->exports[i].name)) |
741 | continue; | |
742 | ||
252b5132 RH |
743 | if (strchr (pe_def_file->exports[i].name, '@')) |
744 | { | |
1579bae1 | 745 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 746 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 747 | |
252b5132 | 748 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 749 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 750 | def_file_add_export (pe_def_file, tmp, |
b044cda1 CW |
751 | pe_def_file->exports[i].internal_name, |
752 | -1); | |
252b5132 RH |
753 | else |
754 | free (tmp); | |
755 | } | |
756 | } | |
757 | } | |
758 | ||
86b1cc60 KH |
759 | /* Convenience, but watch out for it changing. */ |
760 | e = pe_def_file->exports; | |
252b5132 | 761 | |
1579bae1 | 762 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
198beae2 | 763 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); |
252b5132 | 764 | |
198beae2 | 765 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); |
252b5132 RH |
766 | max_ordinal = 0; |
767 | min_ordinal = 65536; | |
768 | count_exported = 0; | |
769 | count_exported_byname = 0; | |
770 | count_with_ordinals = 0; | |
771 | ||
1579bae1 AM |
772 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), |
773 | pe_export_sort); | |
252b5132 RH |
774 | for (i = 0, j = 0; i < NE; i++) |
775 | { | |
776 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
777 | { | |
870df5dc | 778 | /* This is a duplicate. */ |
252b5132 RH |
779 | if (e[j - 1].ordinal != -1 |
780 | && e[i].ordinal != -1 | |
781 | && e[j - 1].ordinal != e[i].ordinal) | |
782 | { | |
870df5dc NC |
783 | if (pe_dll_warn_dup_exports) |
784 | /* xgettext:c-format */ | |
486e80e2 | 785 | einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 786 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
787 | } |
788 | else | |
789 | { | |
870df5dc NC |
790 | if (pe_dll_warn_dup_exports) |
791 | /* xgettext:c-format */ | |
792 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
793 | e[j - 1].name); | |
252b5132 | 794 | } |
775cabad | 795 | |
486e80e2 | 796 | if (e[i].ordinal != -1) |
252b5132 RH |
797 | e[j - 1].ordinal = e[i].ordinal; |
798 | e[j - 1].flag_private |= e[i].flag_private; | |
799 | e[j - 1].flag_constant |= e[i].flag_constant; | |
800 | e[j - 1].flag_noname |= e[i].flag_noname; | |
801 | e[j - 1].flag_data |= e[i].flag_data; | |
802 | } | |
803 | else | |
804 | { | |
805 | if (i != j) | |
806 | e[j] = e[i]; | |
807 | j++; | |
808 | } | |
809 | } | |
810 | pe_def_file->num_exports = j; /* == NE */ | |
811 | ||
812 | for (i = 0; i < NE; i++) | |
813 | { | |
1579bae1 | 814 | char *name; |
775cabad | 815 | |
a8d701fd DS |
816 | /* Check for forward exports */ |
817 | if (strchr (pe_def_file->exports[i].internal_name, '.')) | |
818 | { | |
819 | count_exported++; | |
820 | if (!pe_def_file->exports[i].flag_noname) | |
821 | count_exported_byname++; | |
822 | ||
823 | pe_def_file->exports[i].flag_forward = 1; | |
824 | ||
825 | if (pe_def_file->exports[i].ordinal != -1) | |
826 | { | |
827 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
828 | max_ordinal = pe_def_file->exports[i].ordinal; | |
829 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
830 | min_ordinal = pe_def_file->exports[i].ordinal; | |
831 | count_with_ordinals++; | |
832 | } | |
833 | ||
834 | continue; | |
835 | } | |
836 | ||
1579bae1 | 837 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 NC |
838 | if (pe_details->underscored |
839 | && (*pe_def_file->exports[i].internal_name != '@')) | |
c6c37250 DD |
840 | { |
841 | *name = '_'; | |
842 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
843 | } | |
844 | else | |
845 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
846 | |
847 | blhe = bfd_link_hash_lookup (info->hash, | |
848 | name, | |
b34976b6 | 849 | FALSE, FALSE, TRUE); |
252b5132 | 850 | |
8a5b676c | 851 | if (blhe |
d643799d | 852 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 853 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
854 | { |
855 | count_exported++; | |
856 | if (!pe_def_file->exports[i].flag_noname) | |
857 | count_exported_byname++; | |
8a5b676c DD |
858 | |
859 | /* Only fill in the sections. The actual offsets are computed | |
860 | in fill_exported_offsets() after common symbols are laid | |
861 | out. */ | |
d643799d | 862 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
863 | exported_symbol_sections[i] = blhe->u.def.section; |
864 | else | |
865 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 866 | |
252b5132 RH |
867 | if (pe_def_file->exports[i].ordinal != -1) |
868 | { | |
869 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
870 | max_ordinal = pe_def_file->exports[i].ordinal; | |
871 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
872 | min_ordinal = pe_def_file->exports[i].ordinal; | |
873 | count_with_ordinals++; | |
874 | } | |
875 | } | |
876 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
877 | { | |
878 | /* xgettext:c-format */ | |
879 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
880 | pe_def_file->exports[i].internal_name); | |
881 | } | |
882 | else if (blhe) | |
883 | { | |
884 | /* xgettext:c-format */ | |
885 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
886 | pe_def_file->exports[i].internal_name, | |
887 | blhe->type, bfd_link_hash_defined); | |
888 | } | |
889 | else | |
890 | { | |
891 | /* xgettext:c-format */ | |
892 | einfo (_("%XCannot export %s: symbol not found\n"), | |
893 | pe_def_file->exports[i].internal_name); | |
894 | } | |
895 | free (name); | |
896 | } | |
897 | } | |
898 | ||
775cabad | 899 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
900 | |
901 | static void | |
1579bae1 | 902 | build_filler_bfd (int include_edata) |
252b5132 RH |
903 | { |
904 | lang_input_statement_type *filler_file; | |
905 | filler_file = lang_add_input_file ("dll stuff", | |
906 | lang_input_file_is_fake_enum, | |
907 | NULL); | |
f13a99db AM |
908 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", |
909 | link_info.output_bfd); | |
252b5132 RH |
910 | if (filler_bfd == NULL |
911 | || !bfd_set_arch_mach (filler_bfd, | |
f13a99db AM |
912 | bfd_get_arch (link_info.output_bfd), |
913 | bfd_get_mach (link_info.output_bfd))) | |
252b5132 | 914 | { |
36230712 | 915 | einfo ("%X%P: can not create BFD: %E\n"); |
252b5132 RH |
916 | return; |
917 | } | |
918 | ||
c6c37250 | 919 | if (include_edata) |
252b5132 | 920 | { |
c6c37250 DD |
921 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
922 | if (edata_s == NULL | |
923 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
924 | (SEC_HAS_CONTENTS | |
925 | | SEC_ALLOC | |
926 | | SEC_LOAD | |
927 | | SEC_KEEP | |
928 | | SEC_IN_MEMORY))) | |
929 | { | |
930 | einfo ("%X%P: can not create .edata section: %E\n"); | |
931 | return; | |
932 | } | |
933 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 934 | } |
252b5132 RH |
935 | |
936 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
937 | if (reloc_s == NULL | |
938 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
939 | (SEC_HAS_CONTENTS | |
940 | | SEC_ALLOC | |
941 | | SEC_LOAD | |
942 | | SEC_KEEP | |
943 | | SEC_IN_MEMORY))) | |
944 | { | |
945 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
946 | return; | |
947 | } | |
775cabad | 948 | |
252b5132 RH |
949 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
950 | ||
951 | ldlang_add_file (filler_file); | |
952 | } | |
953 | ||
775cabad | 954 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
955 | |
956 | static void | |
1579bae1 | 957 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
958 | { |
959 | int i, next_ordinal; | |
960 | int name_table_size = 0; | |
961 | const char *dlnp; | |
962 | ||
963 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 964 | and what the range of ordinals is. */ |
252b5132 | 965 | if (pe_def_file->name) |
775cabad | 966 | dll_name = pe_def_file->name; |
252b5132 RH |
967 | else |
968 | { | |
969 | dll_name = abfd->filename; | |
775cabad | 970 | |
252b5132 | 971 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
972 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
973 | dll_name = dlnp + 1; | |
252b5132 RH |
974 | } |
975 | ||
976 | if (count_with_ordinals && max_ordinal > count_exported) | |
977 | { | |
978 | if (min_ordinal > max_ordinal - count_exported + 1) | |
979 | min_ordinal = max_ordinal - count_exported + 1; | |
980 | } | |
981 | else | |
982 | { | |
983 | min_ordinal = 1; | |
984 | max_ordinal = count_exported; | |
985 | } | |
252b5132 | 986 | |
775cabad | 987 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 988 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
989 | for (i = 0; i < export_table_size; i++) |
990 | exported_symbols[i] = -1; | |
991 | ||
86b1cc60 | 992 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
993 | for (i = 0; i < NE; i++) |
994 | { | |
a8d701fd DS |
995 | if (exported_symbol_sections[i] || |
996 | pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
997 | { |
998 | if (pe_def_file->exports[i].ordinal != -1) | |
999 | { | |
1000 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
1001 | int pi = exported_symbols[ei]; | |
775cabad | 1002 | |
252b5132 RH |
1003 | if (pi != -1) |
1004 | { | |
1005 | /* xgettext:c-format */ | |
486e80e2 | 1006 | einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
1007 | pe_def_file->exports[i].ordinal, |
1008 | pe_def_file->exports[i].name, | |
1009 | pe_def_file->exports[pi].name); | |
1010 | } | |
1011 | exported_symbols[ei] = i; | |
1012 | } | |
1013 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
1014 | } | |
a8d701fd DS |
1015 | |
1016 | /* Reserve space for the forward name. */ | |
1017 | if (pe_def_file->exports[i].flag_forward) | |
1018 | { | |
1019 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
1020 | } | |
252b5132 RH |
1021 | } |
1022 | ||
1023 | next_ordinal = min_ordinal; | |
1024 | for (i = 0; i < NE; i++) | |
a8d701fd DS |
1025 | if ((exported_symbol_sections[i] || |
1026 | pe_def_file->exports[i].flag_forward) && | |
1027 | pe_def_file->exports[i].ordinal == -1) | |
1028 | { | |
1029 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
1030 | next_ordinal++; | |
775cabad | 1031 | |
a8d701fd DS |
1032 | exported_symbols[next_ordinal - min_ordinal] = i; |
1033 | pe_def_file->exports[i].ordinal = next_ordinal; | |
1034 | } | |
252b5132 | 1035 | |
86b1cc60 | 1036 | /* OK, now we can allocate some memory. */ |
775cabad NC |
1037 | edata_sz = (40 /* directory */ |
1038 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
1039 | + 4 * count_exported_byname /* name ptrs */ |
1040 | + 2 * count_exported_byname /* ordinals */ | |
1041 | + name_table_size + strlen (dll_name) + 1); | |
1042 | } | |
1043 | ||
8a5b676c DD |
1044 | /* Fill the exported symbol offsets. The preliminary work has already |
1045 | been done in process_def_file(). */ | |
1046 | ||
1047 | static void | |
1579bae1 | 1048 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 1049 | { |
f0c87f88 | 1050 | int i; |
8a5b676c | 1051 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 1052 | |
8a5b676c DD |
1053 | for (i = 0; i < pe_def_file->num_exports; i++) |
1054 | { | |
1579bae1 | 1055 | char *name; |
775cabad | 1056 | |
1579bae1 | 1057 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 1058 | if (pe_details->underscored |
1579bae1 | 1059 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
1060 | { |
1061 | *name = '_'; | |
1062 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
1063 | } | |
1064 | else | |
1065 | strcpy (name, pe_def_file->exports[i].internal_name); | |
1066 | ||
1067 | blhe = bfd_link_hash_lookup (info->hash, | |
1068 | name, | |
b34976b6 | 1069 | FALSE, FALSE, TRUE); |
8a5b676c | 1070 | |
1579bae1 | 1071 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
1072 | exported_symbol_offsets[i] = blhe->u.def.value; |
1073 | ||
8a5b676c DD |
1074 | free (name); |
1075 | } | |
1076 | } | |
1077 | ||
252b5132 | 1078 | static void |
1579bae1 | 1079 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 1080 | { |
03a1c9a7 | 1081 | int s, hint; |
252b5132 | 1082 | unsigned char *edirectory; |
2f9636ba AM |
1083 | unsigned char *eaddresses; |
1084 | unsigned char *enameptrs; | |
1085 | unsigned char *eordinals; | |
47639182 | 1086 | char *enamestr; |
252b5132 RH |
1087 | time_t now; |
1088 | ||
1089 | time (&now); | |
1090 | ||
1579bae1 | 1091 | edata_d = xmalloc (edata_sz); |
252b5132 | 1092 | |
86b1cc60 | 1093 | /* Note use of array pointer math here. */ |
252b5132 | 1094 | edirectory = edata_d; |
2f9636ba AM |
1095 | eaddresses = edata_d + 40; |
1096 | enameptrs = eaddresses + 4 * export_table_size; | |
1097 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 1098 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 1099 | |
1579bae1 AM |
1100 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
1101 | + edata_s->output_section->vma - image_base) | |
252b5132 | 1102 | |
c2a94a7a | 1103 | memset (edata_d, 0, edata_sz); |
252b5132 RH |
1104 | bfd_put_32 (abfd, now, edata_d + 4); |
1105 | if (pe_def_file->version_major != -1) | |
1106 | { | |
1107 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1108 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1109 | } | |
775cabad | 1110 | |
252b5132 RH |
1111 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1112 | strcpy (enamestr, dll_name); | |
1113 | enamestr += strlen (enamestr) + 1; | |
1114 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1115 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1116 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1117 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1118 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1119 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1120 | ||
8a5b676c DD |
1121 | fill_exported_offsets (abfd, info); |
1122 | ||
03a1c9a7 NC |
1123 | /* Ok, now for the filling in part. |
1124 | Scan alphabetically - ie the ordering in the exports[] table, | |
1125 | rather than by ordinal - the ordering in the exported_symbol[] | |
1126 | table. See dlltool.c and: | |
1127 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html | |
1579bae1 | 1128 | for more information. */ |
252b5132 | 1129 | hint = 0; |
03a1c9a7 | 1130 | for (s = 0; s < NE; s++) |
252b5132 | 1131 | { |
f5a95868 | 1132 | struct bfd_section *ssec = exported_symbol_sections[s]; |
a8d701fd DS |
1133 | if (pe_def_file->exports[s].ordinal != -1 && |
1134 | (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1135 | { |
45b1f63c | 1136 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1137 | |
a8d701fd DS |
1138 | if (pe_def_file->exports[s].flag_forward) |
1139 | { | |
1140 | bfd_put_32 (abfd, ERVA (enamestr), | |
1141 | eaddresses + 4 * (ord - min_ordinal)); | |
1142 | ||
1143 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1144 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1145 | } | |
1146 | else | |
1147 | { | |
6ca0987a | 1148 | bfd_vma srva = (exported_symbol_offsets[s] |
a8d701fd DS |
1149 | + ssec->output_section->vma |
1150 | + ssec->output_offset); | |
1151 | ||
1152 | bfd_put_32 (abfd, srva - image_base, | |
1153 | eaddresses + 4 * (ord - min_ordinal)); | |
1154 | } | |
775cabad | 1155 | |
252b5132 RH |
1156 | if (!pe_def_file->exports[s].flag_noname) |
1157 | { | |
1158 | char *ename = pe_def_file->exports[s].name; | |
03a1c9a7 | 1159 | |
2f9636ba AM |
1160 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1161 | enameptrs += 4; | |
252b5132 RH |
1162 | strcpy (enamestr, ename); |
1163 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1164 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1165 | eordinals += 2; | |
252b5132 RH |
1166 | pe_def_file->exports[s].hint = hint++; |
1167 | } | |
252b5132 RH |
1168 | } |
1169 | } | |
1170 | } | |
1171 | ||
b044cda1 | 1172 | |
198beae2 | 1173 | static struct bfd_section *current_sec; |
b044cda1 CW |
1174 | |
1175 | void | |
1579bae1 AM |
1176 | pe_walk_relocs_of_symbol (struct bfd_link_info *info, |
1177 | const char *name, | |
1178 | int (*cb) (arelent *, asection *)) | |
b044cda1 CW |
1179 | { |
1180 | bfd *b; | |
0d888aac | 1181 | asection *s; |
b044cda1 CW |
1182 | |
1183 | for (b = info->input_bfds; b; b = b->link_next) | |
1184 | { | |
775cabad | 1185 | asymbol **symbols; |
5c1d2f5f | 1186 | int nsyms; |
775cabad | 1187 | |
5c1d2f5f AM |
1188 | if (!bfd_generic_link_read_symbols (b)) |
1189 | { | |
1190 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1191 | return; | |
1192 | } | |
1193 | ||
1194 | symbols = bfd_get_outsymbols (b); | |
1195 | nsyms = bfd_get_symcount (b); | |
b044cda1 CW |
1196 | |
1197 | for (s = b->sections; s; s = s->next) | |
1198 | { | |
775cabad NC |
1199 | arelent **relocs; |
1200 | int relsize, nrelocs, i; | |
b044cda1 CW |
1201 | int flags = bfd_get_section_flags (b, s); |
1202 | ||
775cabad | 1203 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1204 | if (flags & SEC_LINK_ONCE |
1205 | && s->output_section == bfd_abs_section_ptr) | |
1206 | continue; | |
1207 | ||
0d888aac | 1208 | current_sec = s; |
b044cda1 | 1209 | |
b044cda1 | 1210 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1211 | relocs = xmalloc (relsize); |
b044cda1 CW |
1212 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1213 | ||
1214 | for (i = 0; i < nrelocs; i++) | |
1215 | { | |
fc0a2244 | 1216 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad NC |
1217 | |
1218 | if (!strcmp (name, sym->name)) | |
1219 | cb (relocs[i], s); | |
b044cda1 | 1220 | } |
775cabad | 1221 | |
b044cda1 | 1222 | free (relocs); |
775cabad | 1223 | |
b044cda1 CW |
1224 | /* Warning: the allocated symbols are remembered in BFD and reused |
1225 | later, so don't free them! */ | |
1226 | /* free (symbols); */ | |
1227 | } | |
1228 | } | |
1229 | } | |
1230 | ||
775cabad | 1231 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1232 | |
1233 | static void | |
1579bae1 | 1234 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1235 | { |
1236 | ||
86b1cc60 | 1237 | /* For .reloc stuff. */ |
c6c37250 | 1238 | reloc_data_type *reloc_data; |
252b5132 RH |
1239 | int total_relocs = 0; |
1240 | int i; | |
6ca0987a KT |
1241 | bfd_vma sec_page = (bfd_vma) -1; |
1242 | bfd_vma page_ptr, page_count; | |
252b5132 RH |
1243 | int bi; |
1244 | bfd *b; | |
198beae2 | 1245 | struct bfd_section *s; |
252b5132 RH |
1246 | |
1247 | total_relocs = 0; | |
1248 | for (b = info->input_bfds; b; b = b->link_next) | |
1249 | for (s = b->sections; s; s = s->next) | |
1250 | total_relocs += s->reloc_count; | |
1251 | ||
1579bae1 | 1252 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1253 | |
1254 | total_relocs = 0; | |
1255 | bi = 0; | |
1256 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
1257 | { | |
1258 | arelent **relocs; | |
1259 | int relsize, nrelocs, i; | |
1260 | ||
1261 | for (s = b->sections; s; s = s->next) | |
1262 | { | |
6ca0987a | 1263 | bfd_vma sec_vma = s->output_section->vma + s->output_offset; |
252b5132 | 1264 | asymbol **symbols; |
5c1d2f5f | 1265 | int nsyms; |
252b5132 | 1266 | |
86b1cc60 | 1267 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1268 | if (!(s->output_section->flags & SEC_LOAD)) |
1269 | continue; | |
1270 | ||
1271 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1272 | seen it happen - DJ */ |
252b5132 RH |
1273 | if (s->output_section == &bfd_abs_section) |
1274 | continue; | |
1275 | ||
1276 | if (s->output_section->vma == 0) | |
1277 | { | |
86b1cc60 | 1278 | /* Huh? Shouldn't happen, but punt if it does. */ |
252b5132 RH |
1279 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", |
1280 | s->output_section->name, s->output_section->index, | |
1281 | s->output_section->flags); | |
1282 | continue; | |
1283 | } | |
1284 | ||
5c1d2f5f AM |
1285 | if (!bfd_generic_link_read_symbols (b)) |
1286 | { | |
1287 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1288 | return; | |
1289 | } | |
252b5132 | 1290 | |
5c1d2f5f AM |
1291 | symbols = bfd_get_outsymbols (b); |
1292 | nsyms = bfd_get_symcount (b); | |
252b5132 | 1293 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1294 | relocs = xmalloc (relsize); |
252b5132 RH |
1295 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1296 | ||
1297 | for (i = 0; i < nrelocs; i++) | |
1298 | { | |
b044cda1 | 1299 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1300 | { |
fc0a2244 | 1301 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1302 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1303 | } |
252b5132 | 1304 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1305 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1306 | { |
c6c37250 | 1307 | bfd_vma sym_vma; |
fc0a2244 | 1308 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1309 | |
49314f87 DS |
1310 | /* Don't create relocs for undefined weak symbols. */ |
1311 | if (sym->flags == BSF_WEAK) | |
1312 | { | |
1313 | struct bfd_link_hash_entry *blhe | |
1314 | = bfd_link_hash_lookup (info->hash, sym->name, | |
1315 | FALSE, FALSE, FALSE); | |
1316 | if (!blhe || blhe->type != bfd_link_hash_defined) | |
1317 | continue; | |
1318 | } | |
1319 | ||
c6c37250 DD |
1320 | sym_vma = (relocs[i]->addend |
1321 | + sym->value | |
1322 | + sym->section->vma | |
1323 | + sym->section->output_offset | |
1324 | + sym->section->output_section->vma); | |
1325 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; | |
5cc18311 | 1326 | |
344a211f | 1327 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1328 | |
344a211f NC |
1329 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1330 | relocs[i]->howto->rightshift) | |
252b5132 | 1331 | { |
99ad8390 NC |
1332 | #ifdef pe_use_x86_64 |
1333 | case BITS_AND_SHIFT (64, 0): | |
1334 | reloc_data[total_relocs].type = 10; | |
1335 | total_relocs++; | |
1336 | break; | |
1337 | #endif | |
344a211f | 1338 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1339 | reloc_data[total_relocs].type = 3; |
1340 | total_relocs++; | |
252b5132 | 1341 | break; |
344a211f NC |
1342 | case BITS_AND_SHIFT (16, 0): |
1343 | reloc_data[total_relocs].type = 2; | |
1344 | total_relocs++; | |
1345 | break; | |
1346 | case BITS_AND_SHIFT (16, 16): | |
1347 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1348 | /* FIXME: we can't know the symbol's right value |
1349 | yet, but we probably can safely assume that | |
1350 | CE will relocate us in 64k blocks, so leaving | |
1351 | it zero is safe. */ | |
344a211f NC |
1352 | reloc_data[total_relocs].extra = 0; |
1353 | total_relocs++; | |
1354 | break; | |
1355 | case BITS_AND_SHIFT (26, 2): | |
1356 | reloc_data[total_relocs].type = 5; | |
1357 | total_relocs++; | |
1358 | break; | |
fea39bcb | 1359 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1360 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1361 | Those ARM_xxx definitions should go in proper | |
1362 | header someday. */ | |
1363 | if (relocs[i]->howto->type == 0 | |
1364 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1365 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1366 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1367 | that has already been fully processed during a | |
1368 | previous link stage, so ignore it here. */ | |
1369 | break; | |
1370 | /* Fall through. */ | |
252b5132 RH |
1371 | default: |
1372 | /* xgettext:c-format */ | |
1373 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
1374 | relocs[i]->howto->bitsize); | |
1375 | break; | |
1376 | } | |
1377 | } | |
1378 | } | |
1379 | free (relocs); | |
86b1cc60 KH |
1380 | /* Warning: the allocated symbols are remembered in BFD and |
1381 | reused later, so don't free them! */ | |
252b5132 RH |
1382 | } |
1383 | } | |
1384 | ||
1385 | /* At this point, we have total_relocs relocation addresses in | |
1386 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1387 | We must now create the new sections. */ |
c6c37250 | 1388 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1389 | |
1390 | for (i = 0; i < total_relocs; i++) | |
1391 | { | |
6ca0987a | 1392 | bfd_vma this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1393 | |
252b5132 RH |
1394 | if (this_page != sec_page) |
1395 | { | |
775cabad | 1396 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1397 | reloc_sz += 8; |
1398 | sec_page = this_page; | |
1399 | } | |
5cc18311 | 1400 | |
252b5132 | 1401 | reloc_sz += 2; |
5cc18311 | 1402 | |
344a211f NC |
1403 | if (reloc_data[i].type == 4) |
1404 | reloc_sz += 2; | |
252b5132 | 1405 | } |
b7a26f91 | 1406 | |
775cabad | 1407 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 | 1408 | reloc_d = xmalloc (reloc_sz); |
6ca0987a | 1409 | sec_page = (bfd_vma) -1; |
252b5132 | 1410 | reloc_sz = 0; |
6ca0987a | 1411 | page_ptr = (bfd_vma) -1; |
252b5132 | 1412 | page_count = 0; |
775cabad | 1413 | |
252b5132 RH |
1414 | for (i = 0; i < total_relocs; i++) |
1415 | { | |
6ca0987a KT |
1416 | bfd_vma rva = reloc_data[i].vma - image_base; |
1417 | bfd_vma this_page = (rva & ~0xfff); | |
775cabad | 1418 | |
252b5132 RH |
1419 | if (this_page != sec_page) |
1420 | { | |
1421 | while (reloc_sz & 3) | |
1422 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1423 | |
6ca0987a | 1424 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1425 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1426 | |
252b5132 RH |
1427 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1428 | page_ptr = reloc_sz; | |
1429 | reloc_sz += 8; | |
1430 | sec_page = this_page; | |
1431 | page_count = 0; | |
1432 | } | |
775cabad | 1433 | |
d643799d | 1434 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1435 | reloc_d + reloc_sz); |
252b5132 | 1436 | reloc_sz += 2; |
775cabad | 1437 | |
c6c37250 DD |
1438 | if (reloc_data[i].type == 4) |
1439 | { | |
1440 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1441 | reloc_sz += 2; | |
1442 | } | |
775cabad | 1443 | |
252b5132 RH |
1444 | page_count++; |
1445 | } | |
775cabad | 1446 | |
252b5132 RH |
1447 | while (reloc_sz & 3) |
1448 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1449 | |
6ca0987a | 1450 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1451 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1452 | |
eea6121a | 1453 | while (reloc_sz < reloc_s->size) |
252b5132 RH |
1454 | reloc_d[reloc_sz++] = 0; |
1455 | } | |
1456 | ||
775cabad NC |
1457 | /* Given the exiting def_file structure, print out a .DEF file that |
1458 | corresponds to it. */ | |
252b5132 RH |
1459 | |
1460 | static void | |
1579bae1 | 1461 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1462 | { |
1463 | char *cp; | |
775cabad | 1464 | |
252b5132 RH |
1465 | for (cp = s; *cp; cp++) |
1466 | if (*cp == '\'' | |
1467 | || *cp == '"' | |
1468 | || *cp == '\\' | |
3882b010 | 1469 | || ISSPACE (*cp) |
252b5132 RH |
1470 | || *cp == ',' |
1471 | || *cp == ';') | |
1472 | needs_quotes = 1; | |
775cabad | 1473 | |
252b5132 RH |
1474 | if (needs_quotes) |
1475 | { | |
1476 | putc ('"', f); | |
775cabad | 1477 | |
252b5132 RH |
1478 | while (*s) |
1479 | { | |
1480 | if (*s == '"' || *s == '\\') | |
1481 | putc ('\\', f); | |
775cabad | 1482 | |
252b5132 RH |
1483 | putc (*s, f); |
1484 | s++; | |
1485 | } | |
775cabad | 1486 | |
252b5132 RH |
1487 | putc ('"', f); |
1488 | } | |
1489 | else | |
1490 | fputs (s, f); | |
1491 | } | |
1492 | ||
1493 | void | |
1579bae1 | 1494 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1495 | { |
1496 | int i; | |
1497 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1498 | |
252b5132 | 1499 | if (out == NULL) |
775cabad NC |
1500 | /* xgettext:c-format */ |
1501 | einfo (_("%s: Can't open output def file %s\n"), | |
1502 | program_name, pe_out_def_filename); | |
252b5132 RH |
1503 | |
1504 | if (pe_def_file) | |
1505 | { | |
1506 | if (pe_def_file->name) | |
1507 | { | |
1508 | if (pe_def_file->is_dll) | |
1509 | fprintf (out, "LIBRARY "); | |
1510 | else | |
1511 | fprintf (out, "NAME "); | |
775cabad | 1512 | |
252b5132 | 1513 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1514 | |
f13a99db | 1515 | if (pe_data (link_info.output_bfd)->pe_opthdr.ImageBase) |
0ead4f8d KT |
1516 | { |
1517 | fprintf (out, " BASE=0x"); | |
1518 | fprintf_vma (out, ((bfd_vma) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase)); | |
1519 | } | |
252b5132 RH |
1520 | fprintf (out, "\n"); |
1521 | } | |
1522 | ||
1523 | if (pe_def_file->description) | |
1524 | { | |
1525 | fprintf (out, "DESCRIPTION "); | |
1526 | quoteput (pe_def_file->description, out, 1); | |
1527 | fprintf (out, "\n"); | |
1528 | } | |
1529 | ||
1530 | if (pe_def_file->version_minor != -1) | |
1531 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1532 | pe_def_file->version_minor); | |
1533 | else if (pe_def_file->version_major != -1) | |
1534 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1535 | ||
1536 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1537 | fprintf (out, "\n"); | |
1538 | ||
1539 | if (pe_def_file->stack_commit != -1) | |
1540 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1541 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1542 | else if (pe_def_file->stack_reserve != -1) | |
1543 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1544 | |
252b5132 RH |
1545 | if (pe_def_file->heap_commit != -1) |
1546 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1547 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1548 | else if (pe_def_file->heap_reserve != -1) | |
1549 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1550 | ||
1551 | if (pe_def_file->num_section_defs > 0) | |
1552 | { | |
1553 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1554 | |
252b5132 RH |
1555 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1556 | { | |
1557 | fprintf (out, " "); | |
1558 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1559 | |
252b5132 RH |
1560 | if (pe_def_file->section_defs[i].class) |
1561 | { | |
1562 | fprintf (out, " CLASS "); | |
1563 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1564 | } | |
775cabad | 1565 | |
252b5132 RH |
1566 | if (pe_def_file->section_defs[i].flag_read) |
1567 | fprintf (out, " READ"); | |
775cabad | 1568 | |
252b5132 RH |
1569 | if (pe_def_file->section_defs[i].flag_write) |
1570 | fprintf (out, " WRITE"); | |
775cabad | 1571 | |
252b5132 RH |
1572 | if (pe_def_file->section_defs[i].flag_execute) |
1573 | fprintf (out, " EXECUTE"); | |
775cabad | 1574 | |
252b5132 RH |
1575 | if (pe_def_file->section_defs[i].flag_shared) |
1576 | fprintf (out, " SHARED"); | |
775cabad | 1577 | |
252b5132 RH |
1578 | fprintf (out, "\n"); |
1579 | } | |
1580 | } | |
1581 | ||
1582 | if (pe_def_file->num_exports > 0) | |
1583 | { | |
b044cda1 | 1584 | fprintf (out, "EXPORTS\n"); |
775cabad | 1585 | |
252b5132 RH |
1586 | for (i = 0; i < pe_def_file->num_exports; i++) |
1587 | { | |
1588 | def_file_export *e = pe_def_file->exports + i; | |
1589 | fprintf (out, " "); | |
1590 | quoteput (e->name, out, 0); | |
775cabad | 1591 | |
252b5132 RH |
1592 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1593 | { | |
1594 | fprintf (out, " = "); | |
1595 | quoteput (e->internal_name, out, 0); | |
1596 | } | |
775cabad | 1597 | |
252b5132 RH |
1598 | if (e->ordinal != -1) |
1599 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1600 | |
252b5132 RH |
1601 | if (e->flag_private) |
1602 | fprintf (out, " PRIVATE"); | |
775cabad | 1603 | |
252b5132 RH |
1604 | if (e->flag_constant) |
1605 | fprintf (out, " CONSTANT"); | |
775cabad | 1606 | |
252b5132 RH |
1607 | if (e->flag_noname) |
1608 | fprintf (out, " NONAME"); | |
775cabad | 1609 | |
252b5132 RH |
1610 | if (e->flag_data) |
1611 | fprintf (out, " DATA"); | |
1612 | ||
1613 | fprintf (out, "\n"); | |
1614 | } | |
1615 | } | |
1616 | ||
1617 | if (pe_def_file->num_imports > 0) | |
1618 | { | |
1619 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1620 | |
252b5132 RH |
1621 | for (i = 0; i < pe_def_file->num_imports; i++) |
1622 | { | |
1623 | def_file_import *im = pe_def_file->imports + i; | |
1624 | fprintf (out, " "); | |
775cabad | 1625 | |
252b5132 RH |
1626 | if (im->internal_name |
1627 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1628 | { | |
1629 | quoteput (im->internal_name, out, 0); | |
1630 | fprintf (out, " = "); | |
1631 | } | |
775cabad | 1632 | |
252b5132 RH |
1633 | quoteput (im->module->name, out, 0); |
1634 | fprintf (out, "."); | |
775cabad | 1635 | |
252b5132 RH |
1636 | if (im->name) |
1637 | quoteput (im->name, out, 0); | |
1638 | else | |
1639 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1640 | |
252b5132 RH |
1641 | fprintf (out, "\n"); |
1642 | } | |
1643 | } | |
1644 | } | |
1645 | else | |
1646 | fprintf (out, _("; no contents available\n")); | |
1647 | ||
1648 | if (fclose (out) == EOF) | |
775cabad NC |
1649 | /* xgettext:c-format */ |
1650 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
252b5132 RH |
1651 | } |
1652 | ||
775cabad | 1653 | /* Generate the import library. */ |
252b5132 RH |
1654 | |
1655 | static asymbol **symtab; | |
1656 | static int symptr; | |
1657 | static int tmp_seq; | |
1658 | static const char *dll_filename; | |
1659 | static char *dll_symname; | |
1660 | ||
1661 | #define UNDSEC (asection *) &bfd_und_section | |
1662 | ||
1663 | static asection * | |
1579bae1 | 1664 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1665 | { |
1666 | asection *sec; | |
1667 | asymbol *sym; | |
1668 | ||
1669 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1670 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1671 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1672 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1673 | sec->output_section = sec; |
1674 | ||
1675 | sym = bfd_make_empty_symbol (abfd); | |
1676 | symtab[symptr++] = sym; | |
1677 | sym->name = sec->name; | |
1678 | sym->section = sec; | |
1679 | sym->flags = BSF_LOCAL; | |
1680 | sym->value = 0; | |
1681 | ||
1682 | return sec; | |
1683 | } | |
1684 | ||
1685 | static void | |
1579bae1 AM |
1686 | quick_symbol (bfd *abfd, |
1687 | const char *n1, | |
1688 | const char *n2, | |
1689 | const char *n3, | |
1690 | asection *sec, | |
1691 | int flags, | |
1692 | int addr) | |
252b5132 RH |
1693 | { |
1694 | asymbol *sym; | |
1579bae1 | 1695 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1696 | |
252b5132 RH |
1697 | strcpy (name, n1); |
1698 | strcat (name, n2); | |
1699 | strcat (name, n3); | |
1700 | sym = bfd_make_empty_symbol (abfd); | |
1701 | sym->name = name; | |
1702 | sym->section = sec; | |
1703 | sym->flags = flags; | |
1704 | sym->value = addr; | |
1705 | symtab[symptr++] = sym; | |
1706 | } | |
1707 | ||
1708 | static arelent *reltab = 0; | |
1709 | static int relcount = 0, relsize = 0; | |
1710 | ||
1711 | static void | |
0ead4f8d | 1712 | quick_reloc (bfd *abfd, bfd_size_type address, int which_howto, int symidx) |
252b5132 | 1713 | { |
1579bae1 | 1714 | if (relcount >= relsize - 1) |
252b5132 RH |
1715 | { |
1716 | relsize += 10; | |
1717 | if (reltab) | |
1579bae1 | 1718 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 1719 | else |
1579bae1 | 1720 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
1721 | } |
1722 | reltab[relcount].address = address; | |
1723 | reltab[relcount].addend = 0; | |
1724 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1725 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1726 | relcount++; | |
1727 | } | |
1728 | ||
1729 | static void | |
1730 | save_relocs (asection *sec) | |
1731 | { | |
1732 | int i; | |
775cabad | 1733 | |
252b5132 RH |
1734 | sec->relocation = reltab; |
1735 | sec->reloc_count = relcount; | |
1579bae1 | 1736 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 1737 | for (i = 0; i < relcount; i++) |
252b5132 RH |
1738 | sec->orelocation[i] = sec->relocation + i; |
1739 | sec->orelocation[relcount] = 0; | |
1740 | sec->flags |= SEC_RELOC; | |
1741 | reltab = 0; | |
1742 | relcount = relsize = 0; | |
1743 | } | |
1744 | ||
775cabad NC |
1745 | /* .section .idata$2 |
1746 | .global __head_my_dll | |
1747 | __head_my_dll: | |
1748 | .rva hname | |
1749 | .long 0 | |
1750 | .long 0 | |
1751 | .rva __my_dll_iname | |
1752 | .rva fthunk | |
b7a26f91 | 1753 | |
775cabad NC |
1754 | .section .idata$5 |
1755 | .long 0 | |
1756 | fthunk: | |
b7a26f91 | 1757 | |
775cabad NC |
1758 | .section .idata$4 |
1759 | .long 0 | |
1760 | hname: */ | |
252b5132 RH |
1761 | |
1762 | static bfd * | |
1579bae1 | 1763 | make_head (bfd *parent) |
252b5132 RH |
1764 | { |
1765 | asection *id2, *id5, *id4; | |
1766 | unsigned char *d2, *d5, *d4; | |
1767 | char *oname; | |
1768 | bfd *abfd; | |
1769 | ||
1579bae1 | 1770 | oname = xmalloc (20); |
252b5132 RH |
1771 | sprintf (oname, "d%06d.o", tmp_seq); |
1772 | tmp_seq++; | |
1773 | ||
1774 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1775 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1776 | bfd_make_writable (abfd); |
1777 | ||
1778 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1779 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1780 | |
1781 | symptr = 0; | |
1579bae1 | 1782 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
1783 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
1784 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1785 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
1786 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1787 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
1788 | |
1789 | /* OK, pay attention here. I got confused myself looking back at | |
1790 | it. We create a four-byte section to mark the beginning of the | |
1791 | list, and we include an offset of 4 in the section, so that the | |
1792 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 1793 | the start of the list of sections from other objects. */ |
252b5132 RH |
1794 | |
1795 | bfd_set_section_size (abfd, id2, 20); | |
1579bae1 | 1796 | d2 = xmalloc (20); |
252b5132 RH |
1797 | id2->contents = d2; |
1798 | memset (d2, 0, 20); | |
5f69259e | 1799 | d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */ |
252b5132 RH |
1800 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
1801 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1802 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1803 | save_relocs (id2); | |
1804 | ||
99ad8390 NC |
1805 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
1806 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 1807 | id5->contents = d5; |
99ad8390 | 1808 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 1809 | |
99ad8390 NC |
1810 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
1811 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 1812 | id4->contents = d4; |
99ad8390 | 1813 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 RH |
1814 | |
1815 | bfd_set_symtab (abfd, symtab, symptr); | |
1816 | ||
1817 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
99ad8390 NC |
1818 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
1819 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
5cc18311 | 1820 | |
252b5132 RH |
1821 | bfd_make_readable (abfd); |
1822 | return abfd; | |
1823 | } | |
1824 | ||
775cabad NC |
1825 | /* .section .idata$4 |
1826 | .long 0 | |
99ad8390 | 1827 | [.long 0] for PE+ |
775cabad NC |
1828 | .section .idata$5 |
1829 | .long 0 | |
99ad8390 | 1830 | [.long 0] for PE+ |
775cabad NC |
1831 | .section idata$7 |
1832 | .global __my_dll_iname | |
1833 | __my_dll_iname: | |
1834 | .asciz "my.dll" */ | |
252b5132 RH |
1835 | |
1836 | static bfd * | |
1579bae1 | 1837 | make_tail (bfd *parent) |
252b5132 RH |
1838 | { |
1839 | asection *id4, *id5, *id7; | |
1840 | unsigned char *d4, *d5, *d7; | |
1841 | int len; | |
1842 | char *oname; | |
1843 | bfd *abfd; | |
1844 | ||
1579bae1 | 1845 | oname = xmalloc (20); |
252b5132 RH |
1846 | sprintf (oname, "d%06d.o", tmp_seq); |
1847 | tmp_seq++; | |
1848 | ||
1849 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1850 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1851 | bfd_make_writable (abfd); |
1852 | ||
1853 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1854 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1855 | |
1856 | symptr = 0; | |
1579bae1 | 1857 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
1858 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
1859 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1860 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 1861 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 | 1862 | |
99ad8390 NC |
1863 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
1864 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 1865 | id4->contents = d4; |
99ad8390 | 1866 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 | 1867 | |
99ad8390 NC |
1868 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
1869 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 1870 | id5->contents = d5; |
99ad8390 | 1871 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 1872 | |
d643799d | 1873 | len = strlen (dll_filename) + 1; |
252b5132 | 1874 | if (len & 1) |
d643799d | 1875 | len++; |
252b5132 | 1876 | bfd_set_section_size (abfd, id7, len); |
1579bae1 | 1877 | d7 = xmalloc (len); |
252b5132 | 1878 | id7->contents = d7; |
47639182 | 1879 | strcpy ((char *) d7, dll_filename); |
e916811a CF |
1880 | /* If len was odd, the above |
1881 | strcpy leaves behind an undefined byte. That is harmless, | |
1882 | but we set it to 0 just so the binary dumps are pretty. */ | |
1883 | d7[len - 1] = 0; | |
252b5132 RH |
1884 | |
1885 | bfd_set_symtab (abfd, symtab, symptr); | |
1886 | ||
99ad8390 NC |
1887 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
1888 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
252b5132 RH |
1889 | bfd_set_section_contents (abfd, id7, d7, 0, len); |
1890 | ||
1891 | bfd_make_readable (abfd); | |
1892 | return abfd; | |
1893 | } | |
1894 | ||
775cabad NC |
1895 | /* .text |
1896 | .global _function | |
1897 | .global ___imp_function | |
1898 | .global __imp__function | |
1899 | _function: | |
1900 | jmp *__imp__function: | |
b7a26f91 | 1901 | |
775cabad NC |
1902 | .section idata$7 |
1903 | .long __head_my_dll | |
b7a26f91 | 1904 | |
775cabad NC |
1905 | .section .idata$5 |
1906 | ___imp_function: | |
1907 | __imp__function: | |
1908 | iat? | |
1909 | .section .idata$4 | |
1910 | iat? | |
1911 | .section .idata$6 | |
1912 | ID<ordinal>: | |
1913 | .short <hint> | |
1914 | .asciz "function" xlate? (add underscore, kill at) */ | |
1915 | ||
e916811a | 1916 | static const unsigned char jmp_ix86_bytes[] = |
775cabad | 1917 | { |
252b5132 RH |
1918 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
1919 | }; | |
1920 | ||
775cabad NC |
1921 | /* _function: |
1922 | mov.l ip+8,r0 | |
1923 | mov.l @r0,r0 | |
1924 | jmp @r0 | |
1925 | nop | |
1926 | .dw __imp_function */ | |
344a211f | 1927 | |
e916811a | 1928 | static const unsigned char jmp_sh_bytes[] = |
775cabad | 1929 | { |
344a211f NC |
1930 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
1931 | }; | |
1932 | ||
775cabad NC |
1933 | /* _function: |
1934 | lui $t0,<high:__imp_function> | |
1935 | lw $t0,<low:__imp_function> | |
1936 | jr $t0 | |
1937 | nop */ | |
344a211f | 1938 | |
e916811a | 1939 | static const unsigned char jmp_mips_bytes[] = |
775cabad | 1940 | { |
344a211f NC |
1941 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
1942 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
1943 | }; | |
252b5132 | 1944 | |
e916811a | 1945 | static const unsigned char jmp_arm_bytes[] = |
53baae48 NC |
1946 | { |
1947 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
1948 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
1949 | 0, 0, 0, 0 | |
1950 | }; | |
1951 | ||
1952 | ||
252b5132 | 1953 | static bfd * |
54727719 | 1954 | make_one (def_file_export *exp, bfd *parent, bfd_boolean include_jmp_stub) |
252b5132 RH |
1955 | { |
1956 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 1957 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
1958 | int len; |
1959 | char *oname; | |
1960 | bfd *abfd; | |
e916811a | 1961 | const unsigned char *jmp_bytes = NULL; |
f0c87f88 | 1962 | int jmp_byte_count = 0; |
c6c37250 | 1963 | |
54727719 NC |
1964 | /* Include the jump stub section only if it is needed. A jump |
1965 | stub is needed if the symbol being imported <sym> is a function | |
1966 | symbol and there is at least one undefined reference to that | |
1967 | symbol. In other words, if all the import references to <sym> are | |
1968 | explicitly through _declspec(dllimport) then the jump stub is not | |
1969 | needed. */ | |
1970 | if (include_jmp_stub) | |
c6c37250 | 1971 | { |
54727719 NC |
1972 | switch (pe_details->pe_arch) |
1973 | { | |
1974 | case PE_ARCH_i386: | |
1975 | jmp_bytes = jmp_ix86_bytes; | |
1976 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
1977 | break; | |
1978 | case PE_ARCH_sh: | |
1979 | jmp_bytes = jmp_sh_bytes; | |
1980 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
1981 | break; | |
1982 | case PE_ARCH_mips: | |
1983 | jmp_bytes = jmp_mips_bytes; | |
1984 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
1985 | break; | |
1986 | case PE_ARCH_arm: | |
1987 | case PE_ARCH_arm_epoc: | |
1988 | case PE_ARCH_arm_wince: | |
1989 | jmp_bytes = jmp_arm_bytes; | |
1990 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
1991 | break; | |
1992 | default: | |
1993 | abort (); | |
1994 | } | |
c6c37250 | 1995 | } |
252b5132 | 1996 | |
1579bae1 | 1997 | oname = xmalloc (20); |
252b5132 RH |
1998 | sprintf (oname, "d%06d.o", tmp_seq); |
1999 | tmp_seq++; | |
2000 | ||
2001 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2002 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2003 | bfd_make_writable (abfd); |
2004 | ||
2005 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2006 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2007 | |
2008 | symptr = 0; | |
1579bae1 | 2009 | symtab = xmalloc (11 * sizeof (asymbol *)); |
252b5132 RH |
2010 | tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); |
2011 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
2012 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2013 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
2014 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 2015 | |
c9e38879 NC |
2016 | if (*exp->internal_name == '@') |
2017 | { | |
1579bae1 AM |
2018 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2019 | BSF_GLOBAL, 0); | |
54727719 | 2020 | if (include_jmp_stub) |
4b7f0676 | 2021 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); |
00479ba8 | 2022 | quick_symbol (abfd, "__imp_", exp->internal_name, "", id5, |
1579bae1 | 2023 | BSF_GLOBAL, 0); |
c9e38879 NC |
2024 | /* Fastcall applies only to functions, |
2025 | so no need for auto-import symbol. */ | |
2026 | } | |
2027 | else | |
2028 | { | |
4b7f0676 NC |
2029 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2030 | BSF_GLOBAL, 0); | |
54727719 | 2031 | if (include_jmp_stub) |
1579bae1 AM |
2032 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
2033 | BSF_GLOBAL, 0); | |
00479ba8 | 2034 | quick_symbol (abfd, "__imp_", U (""), exp->internal_name, id5, |
1579bae1 | 2035 | BSF_GLOBAL, 0); |
c9e38879 | 2036 | /* Symbol to reference ord/name of imported |
1579bae1 | 2037 | data symbol, used to implement auto-import. */ |
c9e38879 | 2038 | if (exp->flag_data) |
00479ba8 | 2039 | quick_symbol (abfd, U ("_nm_"), U (""), exp->internal_name, id6, |
1579bae1 | 2040 | BSF_GLOBAL,0); |
c9e38879 | 2041 | } |
870df5dc | 2042 | if (pe_dll_compat_implib) |
1579bae1 AM |
2043 | quick_symbol (abfd, U ("__imp_"), exp->internal_name, "", id5, |
2044 | BSF_GLOBAL, 0); | |
252b5132 | 2045 | |
54727719 | 2046 | if (include_jmp_stub) |
775cabad NC |
2047 | { |
2048 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1579bae1 | 2049 | td = xmalloc (jmp_byte_count); |
775cabad NC |
2050 | tx->contents = td; |
2051 | memcpy (td, jmp_bytes, jmp_byte_count); | |
2052 | ||
2053 | switch (pe_details->pe_arch) | |
2054 | { | |
2055 | case PE_ARCH_i386: | |
591a748a NC |
2056 | #ifdef pe_use_x86_64 |
2057 | quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2); | |
2058 | #else | |
2059 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); | |
2060 | #endif | |
775cabad NC |
2061 | break; |
2062 | case PE_ARCH_sh: | |
2063 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
2064 | break; | |
2065 | case PE_ARCH_mips: | |
2066 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
2067 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
2068 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
2069 | break; | |
53baae48 | 2070 | case PE_ARCH_arm: |
7148cc28 NC |
2071 | case PE_ARCH_arm_epoc: |
2072 | case PE_ARCH_arm_wince: | |
53baae48 NC |
2073 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
2074 | break; | |
775cabad NC |
2075 | default: |
2076 | abort (); | |
2077 | } | |
2078 | save_relocs (tx); | |
2079 | } | |
54727719 NC |
2080 | else |
2081 | bfd_set_section_size (abfd, tx, 0); | |
252b5132 RH |
2082 | |
2083 | bfd_set_section_size (abfd, id7, 4); | |
1579bae1 | 2084 | d7 = xmalloc (4); |
252b5132 RH |
2085 | id7->contents = d7; |
2086 | memset (d7, 0, 4); | |
4b7f0676 | 2087 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
2088 | save_relocs (id7); |
2089 | ||
99ad8390 NC |
2090 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
2091 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 2092 | id5->contents = d5; |
99ad8390 | 2093 | memset (d5, 0, PE_IDATA5_SIZE); |
775cabad | 2094 | |
252b5132 RH |
2095 | if (exp->flag_noname) |
2096 | { | |
2097 | d5[0] = exp->ordinal; | |
2098 | d5[1] = exp->ordinal >> 8; | |
99ad8390 | 2099 | d5[PE_IDATA5_SIZE - 1] = 0x80; |
252b5132 RH |
2100 | } |
2101 | else | |
2102 | { | |
2103 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2104 | save_relocs (id5); | |
2105 | } | |
2106 | ||
99ad8390 NC |
2107 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2108 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 2109 | id4->contents = d4; |
99ad8390 | 2110 | memset (d4, 0, PE_IDATA4_SIZE); |
775cabad | 2111 | |
252b5132 RH |
2112 | if (exp->flag_noname) |
2113 | { | |
c2a94a7a DD |
2114 | d4[0] = exp->ordinal; |
2115 | d4[1] = exp->ordinal >> 8; | |
99ad8390 | 2116 | d4[PE_IDATA4_SIZE - 1] = 0x80; |
252b5132 RH |
2117 | } |
2118 | else | |
2119 | { | |
2120 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2121 | save_relocs (id4); | |
2122 | } | |
2123 | ||
2124 | if (exp->flag_noname) | |
2125 | { | |
2126 | len = 0; | |
2127 | bfd_set_section_size (abfd, id6, 0); | |
2128 | } | |
2129 | else | |
2130 | { | |
e916811a CF |
2131 | /* { short, asciz } */ |
2132 | len = 2 + strlen (exp->name) + 1; | |
252b5132 RH |
2133 | if (len & 1) |
2134 | len++; | |
2135 | bfd_set_section_size (abfd, id6, len); | |
1579bae1 | 2136 | d6 = xmalloc (len); |
252b5132 RH |
2137 | id6->contents = d6; |
2138 | memset (d6, 0, len); | |
2139 | d6[0] = exp->hint & 0xff; | |
2140 | d6[1] = exp->hint >> 8; | |
47639182 | 2141 | strcpy ((char *) d6 + 2, exp->name); |
252b5132 RH |
2142 | } |
2143 | ||
2144 | bfd_set_symtab (abfd, symtab, symptr); | |
2145 | ||
54727719 NC |
2146 | if (include_jmp_stub) |
2147 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); | |
252b5132 | 2148 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
99ad8390 NC |
2149 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
2150 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
252b5132 RH |
2151 | if (!exp->flag_noname) |
2152 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
2153 | ||
2154 | bfd_make_readable (abfd); | |
2155 | return abfd; | |
2156 | } | |
2157 | ||
b044cda1 | 2158 | static bfd * |
1579bae1 | 2159 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2160 | { |
775cabad | 2161 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2162 | asection *id4; |
2163 | unsigned char *d4; | |
2164 | char *oname; | |
2165 | bfd *abfd; | |
2166 | ||
1579bae1 | 2167 | oname = xmalloc (20); |
b044cda1 CW |
2168 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2169 | tmp_seq++; | |
2170 | ||
2171 | abfd = bfd_create (oname, parent); | |
2172 | bfd_find_target (pe_details->object_target, abfd); | |
2173 | bfd_make_writable (abfd); | |
2174 | ||
2175 | bfd_set_format (abfd, bfd_object); | |
2176 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2177 | ||
2178 | symptr = 0; | |
1579bae1 | 2179 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 CW |
2180 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
2181 | quick_symbol (abfd, U ("_nm_thnk_"), import, "", id4, BSF_GLOBAL, 0); | |
2182 | quick_symbol (abfd, U ("_nm_"), import, "", UNDSEC, BSF_GLOBAL, 0); | |
2183 | ||
4e986257 CF |
2184 | /* We need space for the real thunk and for the null terminator. */ |
2185 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE * 2); | |
2186 | d4 = xmalloc (PE_IDATA4_SIZE * 2); | |
b044cda1 | 2187 | id4->contents = d4; |
4e986257 | 2188 | memset (d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2189 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2190 | save_relocs (id4); | |
2191 | ||
2192 | bfd_set_symtab (abfd, symtab, symptr); | |
2193 | ||
4e986257 | 2194 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2195 | |
2196 | bfd_make_readable (abfd); | |
2197 | return abfd; | |
2198 | } | |
2199 | ||
2200 | static char * | |
1579bae1 | 2201 | make_import_fixup_mark (arelent *rel) |
b044cda1 | 2202 | { |
775cabad | 2203 | /* We convert reloc to symbol, for later reference. */ |
b044cda1 CW |
2204 | static int counter; |
2205 | static char *fixup_name = NULL; | |
db09f25b | 2206 | static size_t buffer_len = 0; |
b7a26f91 | 2207 | |
fc0a2244 | 2208 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b7a26f91 | 2209 | |
b044cda1 | 2210 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2211 | struct bfd_link_hash_entry *bh; |
b044cda1 CW |
2212 | |
2213 | if (!fixup_name) | |
2214 | { | |
1579bae1 | 2215 | fixup_name = xmalloc (384); |
b044cda1 CW |
2216 | buffer_len = 384; |
2217 | } | |
2218 | ||
2219 | if (strlen (sym->name) + 25 > buffer_len) | |
b7a26f91 | 2220 | /* Assume 25 chars for "__fu" + counter + "_". If counter is |
b044cda1 | 2221 | bigger than 20 digits long, we've got worse problems than |
775cabad | 2222 | overflowing this buffer... */ |
b044cda1 CW |
2223 | { |
2224 | free (fixup_name); | |
a35bc64f NC |
2225 | /* New buffer size is length of symbol, plus 25, but |
2226 | then rounded up to the nearest multiple of 128. */ | |
b044cda1 | 2227 | buffer_len = ((strlen (sym->name) + 25) + 127) & ~127; |
1579bae1 | 2228 | fixup_name = xmalloc (buffer_len); |
b044cda1 | 2229 | } |
b7a26f91 | 2230 | |
b044cda1 CW |
2231 | sprintf (fixup_name, "__fu%d_%s", counter++, sym->name); |
2232 | ||
fe213ce2 | 2233 | bh = NULL; |
b7a26f91 | 2234 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2235 | current_sec, /* sym->section, */ |
b34976b6 | 2236 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 | 2237 | |
b044cda1 CW |
2238 | return fixup_name; |
2239 | } | |
2240 | ||
53baae48 | 2241 | /* .section .idata$2 |
775cabad NC |
2242 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2243 | .long 0 | |
2244 | .long 0 | |
2245 | .rva __my_dll_iname (name of dll) | |
2246 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2247 | |
2248 | static bfd * | |
1579bae1 AM |
2249 | make_import_fixup_entry (const char *name, |
2250 | const char *fixup_name, | |
2251 | const char *dll_symname, | |
2252 | bfd *parent) | |
b044cda1 | 2253 | { |
53baae48 NC |
2254 | asection *id2; |
2255 | unsigned char *d2; | |
b044cda1 CW |
2256 | char *oname; |
2257 | bfd *abfd; | |
2258 | ||
1579bae1 | 2259 | oname = xmalloc (20); |
b044cda1 CW |
2260 | sprintf (oname, "fu%06d.o", tmp_seq); |
2261 | tmp_seq++; | |
2262 | ||
2263 | abfd = bfd_create (oname, parent); | |
2264 | bfd_find_target (pe_details->object_target, abfd); | |
2265 | bfd_make_writable (abfd); | |
2266 | ||
2267 | bfd_set_format (abfd, bfd_object); | |
2268 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2269 | ||
2270 | symptr = 0; | |
1579bae1 | 2271 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2272 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2273 | |
b044cda1 CW |
2274 | quick_symbol (abfd, U ("_nm_thnk_"), name, "", UNDSEC, BSF_GLOBAL, 0); |
2275 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
2276 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2277 | ||
53baae48 NC |
2278 | bfd_set_section_size (abfd, id2, 20); |
2279 | d2 = xmalloc (20); | |
2280 | id2->contents = d2; | |
2281 | memset (d2, 0, 20); | |
b8a48734 | 2282 | d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */ |
b044cda1 CW |
2283 | |
2284 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2285 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2286 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2287 | save_relocs (id2); |
b044cda1 CW |
2288 | |
2289 | bfd_set_symtab (abfd, symtab, symptr); | |
2290 | ||
53baae48 | 2291 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2292 | |
2293 | bfd_make_readable (abfd); | |
2294 | return abfd; | |
2295 | } | |
2296 | ||
2fa9fc65 NC |
2297 | /* .section .rdata_runtime_pseudo_reloc |
2298 | .long addend | |
2299 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2300 | ||
2301 | static bfd * | |
1579bae1 AM |
2302 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2303 | const char *fixup_name, | |
6cb442d3 KT |
2304 | bfd_vma addend ATTRIBUTE_UNUSED, |
2305 | bfd_vma bitsize, | |
1579bae1 | 2306 | bfd *parent) |
2fa9fc65 NC |
2307 | { |
2308 | asection *rt_rel; | |
2309 | unsigned char *rt_rel_d; | |
2310 | char *oname; | |
2311 | bfd *abfd; | |
1579bae1 | 2312 | oname = xmalloc (20); |
2fa9fc65 NC |
2313 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2314 | tmp_seq++; | |
2315 | ||
2316 | abfd = bfd_create (oname, parent); | |
2317 | bfd_find_target (pe_details->object_target, abfd); | |
2318 | bfd_make_writable (abfd); | |
2319 | ||
2320 | bfd_set_format (abfd, bfd_object); | |
2321 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2322 | ||
2323 | symptr = 0; | |
acac4c69 KT |
2324 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2325 | { | |
2326 | symtab = xmalloc ((runtime_pseudp_reloc_v2_init ? 3 : 6) * sizeof (asymbol *)); | |
2327 | } | |
2328 | else | |
2329 | { | |
2330 | symtab = xmalloc (2 * sizeof (asymbol *)); | |
2331 | } | |
1579bae1 AM |
2332 | rt_rel = quick_section (abfd, ".rdata_runtime_pseudo_reloc", |
2333 | SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2334 | |
2335 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2336 | ||
6cb442d3 KT |
2337 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2338 | { | |
2339 | size_t size = 12; | |
2340 | if (! runtime_pseudp_reloc_v2_init) | |
2341 | { | |
2342 | size += 12; | |
2343 | runtime_pseudp_reloc_v2_init = 1; | |
2344 | } | |
2345 | quick_symbol (abfd, U ("_imp_"), name, "", UNDSEC, BSF_GLOBAL, 0); | |
2346 | ||
2347 | bfd_set_section_size (abfd, rt_rel, size); | |
2348 | rt_rel_d = xmalloc (size); | |
2349 | rt_rel->contents = rt_rel_d; | |
2350 | memset (rt_rel_d, 0, size); | |
2351 | quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1); | |
2352 | quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2); | |
2353 | bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4)); | |
2354 | if (size != 12) | |
2355 | bfd_put_32 (abfd, 1, rt_rel_d + 8); | |
2356 | save_relocs (rt_rel); | |
2357 | ||
2358 | bfd_set_symtab (abfd, symtab, symptr); | |
2359 | ||
2360 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, size); | |
2361 | } | |
2362 | else | |
2363 | { | |
2364 | bfd_set_section_size (abfd, rt_rel, 8); | |
2365 | rt_rel_d = xmalloc (8); | |
2366 | rt_rel->contents = rt_rel_d; | |
2367 | memset (rt_rel_d, 0, 8); | |
2fa9fc65 | 2368 | |
6cb442d3 KT |
2369 | bfd_put_32 (abfd, addend, rt_rel_d); |
2370 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2fa9fc65 | 2371 | |
6cb442d3 | 2372 | save_relocs (rt_rel); |
2fa9fc65 | 2373 | |
6cb442d3 | 2374 | bfd_set_symtab (abfd, symtab, symptr); |
2fa9fc65 | 2375 | |
6cb442d3 KT |
2376 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); |
2377 | } | |
2fa9fc65 NC |
2378 | bfd_make_readable (abfd); |
2379 | return abfd; | |
2380 | } | |
2381 | ||
2382 | /* .section .rdata | |
a35bc64f | 2383 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2384 | |
2385 | static bfd * | |
1579bae1 | 2386 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2387 | { |
2388 | asection *extern_rt_rel; | |
2389 | unsigned char *extern_rt_rel_d; | |
2390 | char *oname; | |
2391 | bfd *abfd; | |
2392 | ||
1579bae1 | 2393 | oname = xmalloc (20); |
2fa9fc65 NC |
2394 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2395 | tmp_seq++; | |
2396 | ||
2397 | abfd = bfd_create (oname, parent); | |
2398 | bfd_find_target (pe_details->object_target, abfd); | |
2399 | bfd_make_writable (abfd); | |
2400 | ||
2401 | bfd_set_format (abfd, bfd_object); | |
2402 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2403 | ||
2404 | symptr = 0; | |
1579bae1 | 2405 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2406 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2407 | ||
00479ba8 | 2408 | quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC, |
1579bae1 | 2409 | BSF_NO_FLAGS, 0); |
2fa9fc65 NC |
2410 | |
2411 | bfd_set_section_size (abfd, extern_rt_rel, 4); | |
1579bae1 | 2412 | extern_rt_rel_d = xmalloc (4); |
2fa9fc65 NC |
2413 | extern_rt_rel->contents = extern_rt_rel_d; |
2414 | ||
2415 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2416 | save_relocs (extern_rt_rel); | |
2417 | ||
2418 | bfd_set_symtab (abfd, symtab, symptr); | |
2419 | ||
2420 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, 4); | |
2421 | ||
2422 | bfd_make_readable (abfd); | |
2423 | return abfd; | |
2424 | } | |
2425 | ||
b044cda1 | 2426 | void |
6cb442d3 | 2427 | pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend) |
b044cda1 CW |
2428 | { |
2429 | char buf[300]; | |
fc0a2244 | 2430 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2431 | struct bfd_link_hash_entry *name_thunk_sym; |
db09f25b | 2432 | const char *name = sym->name; |
b044cda1 | 2433 | char *fixup_name = make_import_fixup_mark (rel); |
2fa9fc65 | 2434 | bfd *b; |
b044cda1 CW |
2435 | |
2436 | sprintf (buf, U ("_nm_thnk_%s"), name); | |
2437 | ||
2438 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
2439 | ||
2440 | if (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined) | |
2441 | { | |
f13a99db | 2442 | bfd *b = make_singleton_name_thunk (name, link_info.output_bfd); |
b044cda1 CW |
2443 | add_bfd_to_link (b, b->filename, &link_info); |
2444 | ||
775cabad | 2445 | /* If we ever use autoimport, we have to cast text section writable. */ |
b34976b6 | 2446 | config.text_read_only = FALSE; |
f13a99db | 2447 | link_info.output_bfd->flags &= ~WP_TEXT; |
b044cda1 CW |
2448 | } |
2449 | ||
2fa9fc65 NC |
2450 | if (addend == 0 || link_info.pei386_runtime_pseudo_reloc) |
2451 | { | |
2452 | extern char * pe_data_import_dll; | |
2453 | char * dll_symname = pe_data_import_dll ? pe_data_import_dll : "unknown"; | |
aa3d9aba | 2454 | |
f13a99db AM |
2455 | b = make_import_fixup_entry (name, fixup_name, dll_symname, |
2456 | link_info.output_bfd); | |
2fa9fc65 NC |
2457 | add_bfd_to_link (b, b->filename, &link_info); |
2458 | } | |
2459 | ||
6cb442d3 KT |
2460 | if ((link_info.pei386_runtime_pseudo_reloc != 0 && addend != 0) |
2461 | || link_info.pei386_runtime_pseudo_reloc == 2) | |
2462 | { | |
2463 | if (pe_dll_extra_pe_debug) | |
2464 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2465 | fixup_name, (int) addend); | |
2466 | ||
2467 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, rel->howto->bitsize, | |
2468 | link_info.output_bfd); | |
2469 | add_bfd_to_link (b, b->filename, &link_info); | |
2470 | ||
2471 | if (runtime_pseudo_relocs_created == 0) | |
2472 | { | |
2473 | b = pe_create_runtime_relocator_reference (link_info.output_bfd); | |
2474 | add_bfd_to_link (b, b->filename, &link_info); | |
2475 | } | |
2476 | runtime_pseudo_relocs_created++; | |
2477 | } | |
2478 | else if (addend != 0) | |
2479 | { | |
2480 | einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"), | |
2481 | s->owner, s, rel->address, sym->name); | |
2482 | einfo ("%X"); | |
2483 | } | |
b044cda1 CW |
2484 | } |
2485 | ||
2486 | ||
252b5132 | 2487 | void |
e1c37eb5 | 2488 | pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info) |
252b5132 RH |
2489 | { |
2490 | int i; | |
2491 | bfd *ar_head; | |
2492 | bfd *ar_tail; | |
2493 | bfd *outarch; | |
e1c37eb5 | 2494 | bfd *ibfd; |
252b5132 RH |
2495 | bfd *head = 0; |
2496 | ||
5aaace27 | 2497 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2498 | dll_symname = xstrdup (dll_filename); |
d643799d | 2499 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2500 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2501 | dll_symname[i] = '_'; |
2502 | ||
bb14f524 | 2503 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2504 | |
2505 | outarch = bfd_openw (impfilename, 0); | |
2506 | ||
2507 | if (!outarch) | |
2508 | { | |
2509 | /* xgettext:c-format */ | |
2510 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
2511 | return; | |
2512 | } | |
2513 | ||
2514 | /* xgettext:c-format */ | |
63d85248 NC |
2515 | info_msg (_("Creating library file: %s\n"), impfilename); |
2516 | ||
252b5132 RH |
2517 | bfd_set_format (outarch, bfd_archive); |
2518 | outarch->has_armap = 1; | |
2519 | ||
5cc18311 | 2520 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2521 | ar_head = make_head (outarch); |
252b5132 | 2522 | |
e1c37eb5 DK |
2523 | /* Iterate the input BFDs, looking for exclude-modules-for-implib. */ |
2524 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
2525 | { | |
2526 | /* Iterate the exclude list. */ | |
2527 | struct exclude_list_struct *ex; | |
2528 | char found; | |
2529 | for (ex = excludes, found = 0; ex && !found; ex = ex->next) | |
2530 | { | |
2531 | if (ex->type != EXCLUDEFORIMPLIB) | |
2532 | continue; | |
2533 | found = (strcmp (ex->string, ibfd->filename) == 0); | |
2534 | } | |
2535 | /* If it matched, we must open a fresh BFD for it (the original | |
2536 | input BFD is still needed for the DLL's final link) and add | |
2537 | it into the archive member chain. */ | |
2538 | if (found) | |
2539 | { | |
2540 | bfd *newbfd = bfd_openr (ibfd->my_archive | |
2541 | ? ibfd->my_archive->filename : ibfd->filename, NULL); | |
2542 | if (!newbfd) | |
2543 | { | |
2544 | einfo (_("%Xbfd_openr %s: %E\n"), ibfd->filename); | |
2545 | return; | |
2546 | } | |
2547 | if (ibfd->my_archive) | |
2548 | { | |
2549 | /* Must now iterate through archive until we find the | |
2550 | required member. A minor shame that we'll open the | |
2551 | archive once per member that we require from it, and | |
2552 | leak those archive bfds rather than reuse them. */ | |
2553 | bfd *arbfd = newbfd; | |
2554 | if (!bfd_check_format_matches (arbfd, bfd_archive, NULL)) | |
2555 | { | |
2556 | einfo (_("%X%s(%s): can't find member in non-archive file"), | |
2557 | ibfd->my_archive->filename, ibfd->filename); | |
2558 | return; | |
2559 | } | |
2560 | newbfd = NULL; | |
2561 | while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0) | |
2562 | { | |
2563 | if (strcmp (newbfd->filename, ibfd->filename) == 0) | |
2564 | break; | |
2565 | } | |
2566 | if (!newbfd) | |
2567 | { | |
2568 | einfo (_("%X%s(%s): can't find member in archive"), | |
2569 | ibfd->my_archive->filename, ibfd->filename); | |
2570 | return; | |
2571 | } | |
2572 | } | |
2573 | newbfd->archive_next = head; | |
2574 | head = newbfd; | |
2575 | } | |
2576 | } | |
2577 | ||
d643799d | 2578 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2579 | { |
86b1cc60 | 2580 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2581 | char *internal = def->exports[i].internal_name; |
2582 | bfd *n; | |
775cabad | 2583 | |
ee31fbd0 NC |
2584 | /* Don't add PRIVATE entries to import lib. */ |
2585 | if (pe_def_file->exports[i].flag_private) | |
2586 | continue; | |
252b5132 | 2587 | def->exports[i].internal_name = def->exports[i].name; |
54727719 NC |
2588 | n = make_one (def->exports + i, outarch, |
2589 | ! (def->exports + i)->flag_data); | |
cc481421 | 2590 | n->archive_next = head; |
252b5132 RH |
2591 | head = n; |
2592 | def->exports[i].internal_name = internal; | |
2593 | } | |
2594 | ||
c6c37250 DD |
2595 | ar_tail = make_tail (outarch); |
2596 | ||
2597 | if (ar_head == NULL || ar_tail == NULL) | |
2598 | return; | |
2599 | ||
86b1cc60 | 2600 | /* Now stick them all into the archive. */ |
cc481421 AM |
2601 | ar_head->archive_next = head; |
2602 | ar_tail->archive_next = ar_head; | |
252b5132 RH |
2603 | head = ar_tail; |
2604 | ||
2605 | if (! bfd_set_archive_head (outarch, head)) | |
36230712 | 2606 | einfo ("%Xbfd_set_archive_head: %E\n"); |
5cc18311 | 2607 | |
252b5132 | 2608 | if (! bfd_close (outarch)) |
36230712 | 2609 | einfo ("%Xbfd_close %s: %E\n", impfilename); |
252b5132 RH |
2610 | |
2611 | while (head != NULL) | |
2612 | { | |
cc481421 | 2613 | bfd *n = head->archive_next; |
252b5132 RH |
2614 | bfd_close (head); |
2615 | head = n; | |
2616 | } | |
2617 | } | |
2618 | ||
2619 | static void | |
1579bae1 | 2620 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *link_info) |
252b5132 RH |
2621 | { |
2622 | lang_input_statement_type *fake_file; | |
775cabad | 2623 | |
252b5132 RH |
2624 | fake_file = lang_add_input_file (name, |
2625 | lang_input_file_is_fake_enum, | |
2626 | NULL); | |
2627 | fake_file->the_bfd = abfd; | |
2628 | ldlang_add_file (fake_file); | |
775cabad | 2629 | |
252b5132 | 2630 | if (!bfd_link_add_symbols (abfd, link_info)) |
36230712 | 2631 | einfo ("%Xaddsym %s: %E\n", name); |
252b5132 RH |
2632 | } |
2633 | ||
2634 | void | |
1579bae1 | 2635 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *link_info) |
252b5132 RH |
2636 | { |
2637 | def_file_module *module; | |
775cabad | 2638 | |
d643799d | 2639 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
2640 | |
2641 | if (!pe_def_file) | |
2642 | return; | |
2643 | ||
2644 | for (module = pe_def_file->modules; module; module = module->next) | |
2645 | { | |
2646 | int i, do_this_dll; | |
2647 | ||
2648 | dll_filename = module->name; | |
2649 | dll_symname = xstrdup (module->name); | |
d643799d | 2650 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2651 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2652 | dll_symname[i] = '_'; |
2653 | ||
2654 | do_this_dll = 0; | |
2655 | ||
d643799d | 2656 | for (i = 0; i < pe_def_file->num_imports; i++) |
252b5132 RH |
2657 | if (pe_def_file->imports[i].module == module) |
2658 | { | |
2659 | def_file_export exp; | |
2660 | struct bfd_link_hash_entry *blhe; | |
b34976b6 | 2661 | int lead_at = (*pe_def_file->imports[i].internal_name == '@'); |
86b1cc60 | 2662 | /* See if we need this import. */ |
1579bae1 AM |
2663 | size_t len = strlen (pe_def_file->imports[i].internal_name); |
2664 | char *name = xmalloc (len + 2 + 6); | |
54727719 | 2665 | bfd_boolean include_jmp_stub = FALSE; |
c9e38879 NC |
2666 | |
2667 | if (lead_at) | |
00479ba8 | 2668 | sprintf (name, "%s", |
1579bae1 | 2669 | pe_def_file->imports[i].internal_name); |
c9e38879 | 2670 | else |
1579bae1 AM |
2671 | sprintf (name, "%s%s",U (""), |
2672 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2673 | |
252b5132 | 2674 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2675 | FALSE, FALSE, FALSE); |
c9e38879 | 2676 | |
54727719 NC |
2677 | /* Include the jump stub for <sym> only if the <sym> |
2678 | is undefined. */ | |
874c8c99 DD |
2679 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
2680 | { | |
c9e38879 | 2681 | if (lead_at) |
00479ba8 | 2682 | sprintf (name, "%s%s", "__imp_", |
c9e38879 NC |
2683 | pe_def_file->imports[i].internal_name); |
2684 | else | |
00479ba8 | 2685 | sprintf (name, "%s%s%s", "__imp_", U (""), |
c9e38879 NC |
2686 | pe_def_file->imports[i].internal_name); |
2687 | ||
874c8c99 | 2688 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2689 | FALSE, FALSE, FALSE); |
874c8c99 | 2690 | } |
54727719 NC |
2691 | else |
2692 | include_jmp_stub = TRUE; | |
2693 | ||
252b5132 | 2694 | free (name); |
c9e38879 | 2695 | |
252b5132 RH |
2696 | if (blhe && blhe->type == bfd_link_hash_undefined) |
2697 | { | |
2698 | bfd *one; | |
86b1cc60 | 2699 | /* We do. */ |
252b5132 RH |
2700 | if (!do_this_dll) |
2701 | { | |
2702 | bfd *ar_head = make_head (output_bfd); | |
2703 | add_bfd_to_link (ar_head, ar_head->filename, link_info); | |
2704 | do_this_dll = 1; | |
2705 | } | |
2706 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
2707 | exp.name = pe_def_file->imports[i].name; | |
2708 | exp.ordinal = pe_def_file->imports[i].ordinal; | |
2709 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
2710 | exp.flag_private = 0; | |
2711 | exp.flag_constant = 0; | |
939ba9d0 | 2712 | exp.flag_data = pe_def_file->imports[i].data; |
252b5132 | 2713 | exp.flag_noname = exp.name ? 0 : 1; |
54727719 | 2714 | one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub); |
252b5132 RH |
2715 | add_bfd_to_link (one, one->filename, link_info); |
2716 | } | |
2717 | } | |
2718 | if (do_this_dll) | |
2719 | { | |
2720 | bfd *ar_tail = make_tail (output_bfd); | |
2721 | add_bfd_to_link (ar_tail, ar_tail->filename, link_info); | |
2722 | } | |
2723 | ||
2724 | free (dll_symname); | |
2725 | } | |
2726 | } | |
2727 | ||
775cabad | 2728 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
2729 | IMPORTS directives in the def file. Return TRUE if the file was |
2730 | handled, FALSE if not. */ | |
252b5132 RH |
2731 | |
2732 | static unsigned int | |
1579bae1 | 2733 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
2734 | { |
2735 | unsigned char b[2]; | |
775cabad | 2736 | |
db09f25b AM |
2737 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2738 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 2739 | return b[0] + (b[1] << 8); |
252b5132 RH |
2740 | } |
2741 | ||
2742 | static unsigned int | |
1579bae1 | 2743 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
2744 | { |
2745 | unsigned char b[4]; | |
775cabad | 2746 | |
db09f25b AM |
2747 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2748 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 2749 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2750 | } |
2751 | ||
252b5132 | 2752 | static unsigned int |
1579bae1 | 2753 | pe_as32 (void *ptr) |
252b5132 RH |
2754 | { |
2755 | unsigned char *b = ptr; | |
775cabad | 2756 | |
d643799d | 2757 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2758 | } |
2759 | ||
b34976b6 | 2760 | bfd_boolean |
1579bae1 | 2761 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
2762 | { |
2763 | bfd *dll; | |
6ca0987a KT |
2764 | bfd_vma pe_header_offset, opthdr_ofs, num_entries, i; |
2765 | bfd_vma export_rva, export_size, nsections, secptr, expptr; | |
2766 | bfd_vma exp_funcbase; | |
47639182 AM |
2767 | unsigned char *expdata; |
2768 | char *erva; | |
6ca0987a | 2769 | bfd_vma name_rvas, ordinals, nexp, ordbase; |
1069dd8d | 2770 | const char *dll_name; |
939ba9d0 NC |
2771 | /* Initialization with start > end guarantees that is_data |
2772 | will not be set by mistake, and avoids compiler warning. */ | |
6ca0987a KT |
2773 | bfd_vma data_start = 1; |
2774 | bfd_vma data_end = 0; | |
2775 | bfd_vma rdata_start = 1; | |
2776 | bfd_vma rdata_end = 0; | |
2777 | bfd_vma bss_start = 1; | |
2778 | bfd_vma bss_end = 0; | |
252b5132 RH |
2779 | |
2780 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 2781 | the middle of the .rdata section. */ |
c6c37250 | 2782 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
2783 | if (!dll) |
2784 | { | |
36230712 | 2785 | einfo ("%Xopen %s: %E\n", filename); |
b34976b6 | 2786 | return FALSE; |
252b5132 | 2787 | } |
775cabad | 2788 | |
86b1cc60 | 2789 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
2790 | if (!bfd_check_format (dll, bfd_object)) |
2791 | { | |
2792 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
b34976b6 | 2793 | return FALSE; |
252b5132 RH |
2794 | } |
2795 | ||
939ba9d0 | 2796 | /* Get pe_header, optional header and numbers of export entries. */ |
252b5132 RH |
2797 | pe_header_offset = pe_get32 (dll, 0x3c); |
2798 | opthdr_ofs = pe_header_offset + 4 + 20; | |
99ad8390 NC |
2799 | #ifdef pe_use_x86_64 |
2800 | num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */ | |
2801 | #else | |
252b5132 | 2802 | num_entries = pe_get32 (dll, opthdr_ofs + 92); |
99ad8390 | 2803 | #endif |
775cabad NC |
2804 | |
2805 | if (num_entries < 1) /* No exports. */ | |
b34976b6 | 2806 | return FALSE; |
775cabad | 2807 | |
99ad8390 NC |
2808 | #ifdef pe_use_x86_64 |
2809 | export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4); | |
2810 | export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4); | |
2811 | #else | |
252b5132 RH |
2812 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
2813 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
99ad8390 NC |
2814 | #endif |
2815 | ||
252b5132 RH |
2816 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); |
2817 | secptr = (pe_header_offset + 4 + 20 + | |
2818 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
2819 | expptr = 0; | |
775cabad | 2820 | |
1579bae1 | 2821 | /* Get the rva and size of the export section. */ |
d643799d | 2822 | for (i = 0; i < nsections; i++) |
252b5132 RH |
2823 | { |
2824 | char sname[8]; | |
6ca0987a KT |
2825 | bfd_vma secptr1 = secptr + 40 * i; |
2826 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
2827 | bfd_vma vsize = pe_get32 (dll, secptr1 + 16); | |
2828 | bfd_vma fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 2829 | |
db09f25b AM |
2830 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
2831 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 2832 | |
d643799d | 2833 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
2834 | { |
2835 | expptr = fptr + (export_rva - vaddr); | |
2836 | if (export_rva + export_size > vaddr + vsize) | |
2837 | export_size = vsize - (export_rva - vaddr); | |
2838 | break; | |
2839 | } | |
2840 | } | |
2841 | ||
939ba9d0 | 2842 | /* Scan sections and store the base and size of the |
1579bae1 | 2843 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
2844 | for (i = 0; i < nsections; i++) |
2845 | { | |
6ca0987a KT |
2846 | bfd_vma secptr1 = secptr + 40 * i; |
2847 | bfd_vma vsize = pe_get32 (dll, secptr1 + 8); | |
2848 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
2849 | bfd_vma flags = pe_get32 (dll, secptr1 + 36); | |
939ba9d0 NC |
2850 | char sec_name[9]; |
2851 | ||
2852 | sec_name[8] = '\0'; | |
2853 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
2854 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
2855 | ||
2856 | if (strcmp(sec_name,".data") == 0) | |
2857 | { | |
2858 | data_start = vaddr; | |
2859 | data_end = vaddr + vsize; | |
2860 | ||
661a32f7 DS |
2861 | if (pe_dll_extra_pe_debug) |
2862 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
2863 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
2864 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
661a32f7 DS |
2865 | } |
2866 | else if (strcmp(sec_name,".rdata") == 0) | |
2867 | { | |
2868 | rdata_start = vaddr; | |
2869 | rdata_end = vaddr + vsize; | |
2870 | ||
939ba9d0 NC |
2871 | if (pe_dll_extra_pe_debug) |
2872 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
2873 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
2874 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
1579bae1 | 2875 | } |
939ba9d0 NC |
2876 | else if (strcmp (sec_name,".bss") == 0) |
2877 | { | |
2878 | bss_start = vaddr; | |
2879 | bss_end = vaddr + vsize; | |
2880 | ||
2881 | if (pe_dll_extra_pe_debug) | |
2882 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
2883 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
2884 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
939ba9d0 NC |
2885 | } |
2886 | } | |
2887 | ||
1579bae1 | 2888 | expdata = xmalloc (export_size); |
db09f25b AM |
2889 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
2890 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 2891 | erva = (char *) expdata - export_rva; |
252b5132 RH |
2892 | |
2893 | if (pe_def_file == 0) | |
d643799d | 2894 | pe_def_file = def_file_empty (); |
252b5132 | 2895 | |
d643799d KH |
2896 | nexp = pe_as32 (expdata + 24); |
2897 | name_rvas = pe_as32 (expdata + 32); | |
2898 | ordinals = pe_as32 (expdata + 36); | |
2899 | ordbase = pe_as32 (expdata + 16); | |
939ba9d0 | 2900 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 2901 | |
939ba9d0 NC |
2902 | /* Use internal dll name instead of filename |
2903 | to enable symbolic dll linking. */ | |
47639182 | 2904 | dll_name = erva + pe_as32 (expdata + 12); |
939ba9d0 | 2905 | |
a35bc64f NC |
2906 | /* Check to see if the dll has already been added to |
2907 | the definition list and if so return without error. | |
2908 | This avoids multiple symbol definitions. */ | |
2909 | if (def_get_module (pe_def_file, dll_name)) | |
2910 | { | |
2911 | if (pe_dll_extra_pe_debug) | |
2912 | printf ("%s is already loaded\n", dll_name); | |
2913 | return TRUE; | |
2914 | } | |
2915 | ||
939ba9d0 | 2916 | /* Iterate through the list of symbols. */ |
d643799d | 2917 | for (i = 0; i < nexp; i++) |
252b5132 | 2918 | { |
939ba9d0 | 2919 | /* Pointer to the names vector. */ |
6ca0987a | 2920 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 2921 | def_file_import *imp; |
1579bae1 | 2922 | /* Pointer to the function address vector. */ |
6ca0987a | 2923 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
939ba9d0 NC |
2924 | int is_data = 0; |
2925 | ||
2926 | /* Skip unwanted symbols, which are | |
2927 | exported in buggy auto-import releases. */ | |
0112cd26 | 2928 | if (! CONST_STRNEQ (erva + name_rva, "_nm_")) |
939ba9d0 | 2929 | { |
661a32f7 DS |
2930 | /* is_data is true if the address is in the data, rdata or bss |
2931 | segment. */ | |
939ba9d0 NC |
2932 | is_data = |
2933 | (func_rva >= data_start && func_rva < data_end) | |
661a32f7 | 2934 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
2935 | || (func_rva >= bss_start && func_rva < bss_end); |
2936 | ||
2937 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
2938 | dll_name, i, 0); | |
396a2467 | 2939 | /* Mark symbol type. */ |
939ba9d0 | 2940 | imp->data = is_data; |
1579bae1 | 2941 | |
939ba9d0 NC |
2942 | if (pe_dll_extra_pe_debug) |
2943 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
2944 | __FUNCTION__, dll_name, erva + name_rva, | |
6ca0987a | 2945 | (unsigned long) func_rva, is_data ? "(data)" : ""); |
939ba9d0 | 2946 | } |
252b5132 RH |
2947 | } |
2948 | ||
b34976b6 | 2949 | return TRUE; |
252b5132 RH |
2950 | } |
2951 | ||
775cabad NC |
2952 | /* These are the main functions, called from the emulation. The first |
2953 | is called after the bfds are read, so we can guess at how much space | |
2954 | we need. The second is called after everything is placed, so we | |
2955 | can put the right values in place. */ | |
252b5132 RH |
2956 | |
2957 | void | |
1579bae1 | 2958 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2959 | { |
c6c37250 | 2960 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2961 | process_def_file (abfd, info); |
2962 | ||
1579bae1 | 2963 | if (pe_def_file->num_exports == 0 && !info->shared) |
2b817be1 NC |
2964 | return; |
2965 | ||
252b5132 | 2966 | generate_edata (abfd, info); |
c6c37250 DD |
2967 | build_filler_bfd (1); |
2968 | } | |
2969 | ||
2970 | void | |
1579bae1 | 2971 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
2972 | { |
2973 | pe_dll_id_target (bfd_get_target (abfd)); | |
2974 | build_filler_bfd (0); | |
252b5132 RH |
2975 | } |
2976 | ||
2977 | void | |
1579bae1 | 2978 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2979 | { |
c6c37250 | 2980 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2981 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
2982 | ||
2983 | generate_reloc (abfd, info); | |
2984 | if (reloc_sz > 0) | |
2985 | { | |
2986 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
2987 | ||
2988 | /* Resize the sections. */ | |
38975f9e | 2989 | lang_reset_memory_regions (); |
e9ee469a | 2990 | lang_size_sections (NULL, TRUE); |
252b5132 RH |
2991 | |
2992 | /* Redo special stuff. */ | |
2993 | ldemul_after_allocation (); | |
2994 | ||
2995 | /* Do the assignments again. */ | |
e9ee469a | 2996 | lang_do_assignments (); |
252b5132 RH |
2997 | } |
2998 | ||
2999 | fill_edata (abfd, info); | |
3000 | ||
db8acf26 | 3001 | if (info->shared && !info->pie) |
2b817be1 | 3002 | pe_data (abfd)->dll = 1; |
252b5132 RH |
3003 | |
3004 | edata_s->contents = edata_d; | |
3005 | reloc_s->contents = reloc_d; | |
3006 | } | |
c6c37250 DD |
3007 | |
3008 | void | |
1579bae1 | 3009 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
3010 | { |
3011 | pe_dll_id_target (bfd_get_target (abfd)); | |
3012 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; | |
3013 | ||
3014 | generate_reloc (abfd, info); | |
3015 | if (reloc_sz > 0) | |
3016 | { | |
3017 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3018 | ||
3019 | /* Resize the sections. */ | |
38975f9e | 3020 | lang_reset_memory_regions (); |
e9ee469a | 3021 | lang_size_sections (NULL, TRUE); |
c6c37250 DD |
3022 | |
3023 | /* Redo special stuff. */ | |
3024 | ldemul_after_allocation (); | |
3025 | ||
3026 | /* Do the assignments again. */ | |
e9ee469a | 3027 | lang_do_assignments (); |
c6c37250 DD |
3028 | } |
3029 | reloc_s->contents = reloc_d; | |
3030 | } | |
ff2bdb9c CF |
3031 | |
3032 | bfd_boolean | |
3033 | pe_bfd_is_dll (bfd *abfd) | |
3034 | { | |
3035 | return (bfd_get_format (abfd) == bfd_object | |
3036 | && obj_pe (abfd) | |
3037 | && pe_data (abfd)->dll); | |
3038 | } |