Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
f13a99db | 2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
2f65ac72 | 3 | 2008, 2009, 2010, 2011 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" | |
42627821 | 27 | #include "filenames.h" |
3882b010 | 28 | #include "safe-ctype.h" |
252b5132 RH |
29 | |
30 | #include <time.h> | |
252b5132 RH |
31 | |
32 | #include "ld.h" | |
33 | #include "ldexp.h" | |
34 | #include "ldlang.h" | |
35 | #include "ldwrite.h" | |
36 | #include "ldmisc.h" | |
df2a7313 | 37 | #include <ldgram.h> |
252b5132 | 38 | #include "ldmain.h" |
b71e2778 | 39 | #include "ldfile.h" |
252b5132 RH |
40 | #include "ldemul.h" |
41 | #include "coff/internal.h" | |
42 | #include "../bfd/libcoff.h" | |
43 | #include "deffile.h" | |
99ad8390 NC |
44 | |
45 | #ifdef pe_use_x86_64 | |
46 | ||
47 | #define PE_IDATA4_SIZE 8 | |
48 | #define PE_IDATA5_SIZE 8 | |
49 | #include "pep-dll.h" | |
50 | #undef AOUTSZ | |
51 | #define AOUTSZ PEPAOUTSZ | |
52 | #define PEAOUTHDR PEPAOUTHDR | |
53 | ||
54 | #else | |
55 | ||
1069dd8d | 56 | #include "pe-dll.h" |
252b5132 | 57 | |
99ad8390 NC |
58 | #endif |
59 | ||
60 | #ifndef PE_IDATA4_SIZE | |
61 | #define PE_IDATA4_SIZE 4 | |
62 | #endif | |
63 | ||
64 | #ifndef PE_IDATA5_SIZE | |
65 | #define PE_IDATA5_SIZE 4 | |
66 | #endif | |
67 | ||
775cabad NC |
68 | /* This file turns a regular Windows PE image into a DLL. Because of |
69 | the complexity of this operation, it has been broken down into a | |
70 | number of separate modules which are all called by the main function | |
71 | at the end of this file. This function is not re-entrant and is | |
72 | normally only called once, so static variables are used to reduce | |
73 | the number of parameters and return values required. | |
b7a26f91 | 74 | |
99ad8390 | 75 | See also: ld/emultempl/pe.em and ld/emultempl/pep.em. */ |
775cabad NC |
76 | |
77 | /* Auto-import feature by Paul Sokolovsky | |
78 | ||
79 | Quick facts: | |
80 | ||
81 | 1. With this feature on, DLL clients can import variables from DLL | |
82 | without any concern from their side (for example, without any source | |
83 | code modifications). | |
84 | ||
85 | 2. This is done completely in bounds of the PE specification (to be fair, | |
396a2467 | 86 | there's a place where it pokes nose out of, but in practice it works). |
775cabad NC |
87 | So, resulting module can be used with any other PE compiler/linker. |
88 | ||
89 | 3. Auto-import is fully compatible with standard import method and they | |
90 | can be mixed together. | |
91 | ||
92 | 4. Overheads: space: 8 bytes per imported symbol, plus 20 for each | |
93 | reference to it; load time: negligible; virtual/physical memory: should be | |
94 | less than effect of DLL relocation, and I sincerely hope it doesn't affect | |
95 | DLL sharability (too much). | |
96 | ||
97 | Idea | |
98 | ||
99 | The obvious and only way to get rid of dllimport insanity is to make client | |
100 | access variable directly in the DLL, bypassing extra dereference. I.e., | |
396a2467 | 101 | whenever client contains something like |
775cabad NC |
102 | |
103 | mov dll_var,%eax, | |
104 | ||
105 | address of dll_var in the command should be relocated to point into loaded | |
106 | DLL. The aim is to make OS loader do so, and than make ld help with that. | |
107 | Import section of PE made following way: there's a vector of structures | |
108 | each describing imports from particular DLL. Each such structure points | |
396a2467 | 109 | to two other parallel vectors: one holding imported names, and one which |
775cabad NC |
110 | will hold address of corresponding imported name. So, the solution is |
111 | de-vectorize these structures, making import locations be sparse and | |
112 | pointing directly into code. Before continuing, it is worth a note that, | |
113 | while authors strives to make PE act ELF-like, there're some other people | |
114 | make ELF act PE-like: elfvector, ;-) . | |
115 | ||
116 | Implementation | |
117 | ||
118 | For each reference of data symbol to be imported from DLL (to set of which | |
119 | belong symbols with name <sym>, if __imp_<sym> is found in implib), the | |
120 | import fixup entry is generated. That entry is of type | |
53baae48 | 121 | IMAGE_IMPORT_DESCRIPTOR and stored in .idata$2 subsection. Each |
775cabad NC |
122 | fixup entry contains pointer to symbol's address within .text section |
123 | (marked with __fuN_<sym> symbol, where N is integer), pointer to DLL name | |
124 | (so, DLL name is referenced by multiple entries), and pointer to symbol | |
125 | name thunk. Symbol name thunk is singleton vector (__nm_th_<symbol>) | |
126 | pointing to IMAGE_IMPORT_BY_NAME structure (__nm_<symbol>) directly | |
00479ba8 | 127 | containing imported name. Here comes that "on the edge" problem mentioned |
775cabad NC |
128 | above: PE specification rambles that name vector (OriginalFirstThunk) |
129 | should run in parallel with addresses vector (FirstThunk), i.e. that they | |
130 | should have same number of elements and terminated with zero. We violate | |
396a2467 | 131 | this, since FirstThunk points directly into machine code. But in practice, |
775cabad NC |
132 | OS loader implemented the sane way: it goes thru OriginalFirstThunk and |
133 | puts addresses to FirstThunk, not something else. It once again should be | |
134 | noted that dll and symbol name structures are reused across fixup entries | |
135 | and should be there anyway to support standard import stuff, so sustained | |
136 | overhead is 20 bytes per reference. Other question is whether having several | |
137 | IMAGE_IMPORT_DESCRIPTORS for the same DLL is possible. Answer is yes, it is | |
138 | done even by native compiler/linker (libth32's functions are in fact reside | |
139 | in windows9x kernel32.dll, so if you use it, you have two | |
140 | IMAGE_IMPORT_DESCRIPTORS for kernel32.dll). Yet other question is whether | |
141 | referencing the same PE structures several times is valid. The answer is why | |
396a2467 | 142 | not, prohibiting that (detecting violation) would require more work on |
775cabad NC |
143 | behalf of loader than not doing it. |
144 | ||
99ad8390 | 145 | See also: ld/emultempl/pe.em and ld/emultempl/pep.em. */ |
b044cda1 | 146 | |
1579bae1 | 147 | static void add_bfd_to_link (bfd *, const char *, struct bfd_link_info *); |
b044cda1 | 148 | |
775cabad | 149 | /* For emultempl/pe.em. */ |
252b5132 | 150 | |
775cabad | 151 | def_file * pe_def_file = 0; |
252b5132 | 152 | int pe_dll_export_everything = 0; |
2927aaca | 153 | int pe_dll_exclude_all_symbols = 0; |
252b5132 RH |
154 | int pe_dll_do_default_excludes = 1; |
155 | int pe_dll_kill_ats = 0; | |
156 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
157 | int pe_dll_warn_dup_exports = 0; |
158 | int pe_dll_compat_implib = 0; | |
b044cda1 | 159 | int pe_dll_extra_pe_debug = 0; |
ce11ba6c | 160 | int pe_use_nul_prefixed_import_tables = 0; |
88183869 | 161 | int pe_use_coff_long_section_names = -1; |
522f09cd | 162 | int pe_leading_underscore = -1; |
252b5132 | 163 | |
775cabad | 164 | /* Static variables and types. */ |
252b5132 RH |
165 | |
166 | static bfd_vma image_base; | |
252b5132 | 167 | static bfd *filler_bfd; |
198beae2 | 168 | static struct bfd_section *edata_s, *reloc_s; |
252b5132 | 169 | static unsigned char *edata_d, *reloc_d; |
1069dd8d | 170 | static size_t edata_sz, reloc_sz; |
2fa9fc65 | 171 | static int runtime_pseudo_relocs_created = 0; |
6cb442d3 | 172 | static int runtime_pseudp_reloc_v2_init = 0; |
252b5132 | 173 | |
775cabad | 174 | typedef struct |
5b8273bf | 175 | { |
e916811a | 176 | const char *name; |
5b8273bf NC |
177 | int len; |
178 | } | |
179 | autofilter_entry_type; | |
775cabad NC |
180 | |
181 | typedef struct | |
5b8273bf | 182 | { |
e916811a CF |
183 | const char *target_name; |
184 | const char *object_target; | |
5b8273bf NC |
185 | unsigned int imagebase_reloc; |
186 | int pe_arch; | |
187 | int bfd_arch; | |
188 | bfd_boolean underscored; | |
1b610c93 | 189 | const autofilter_entry_type* autofilter_symbollist; |
5b8273bf NC |
190 | } |
191 | pe_details_type; | |
192 | ||
e916811a | 193 | static const autofilter_entry_type autofilter_symbollist_generic[] = |
5b8273bf | 194 | { |
b92216aa | 195 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 196 | /* Entry point symbols. */ |
0112cd26 NC |
197 | { STRING_COMMA_LEN ("DllMain") }, |
198 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
199 | { STRING_COMMA_LEN ("_DllMainCRTStartup") }, | |
5b8273bf | 200 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
201 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
202 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
db86b2dc | 203 | { NULL, 0 } |
5b8273bf NC |
204 | }; |
205 | ||
e916811a | 206 | static const autofilter_entry_type autofilter_symbollist_i386[] = |
5b8273bf | 207 | { |
b92216aa | 208 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 209 | /* Entry point symbols, and entry hooks. */ |
0112cd26 | 210 | { STRING_COMMA_LEN ("cygwin_crt0") }, |
880383ca NC |
211 | #ifdef pe_use_x86_64 |
212 | { STRING_COMMA_LEN ("DllMain") }, | |
213 | { STRING_COMMA_LEN ("DllEntryPoint") }, | |
214 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
215 | { STRING_COMMA_LEN ("_cygwin_dll_entry") }, | |
216 | { STRING_COMMA_LEN ("_cygwin_crt0_common") }, | |
217 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry") }, | |
218 | #else | |
0112cd26 NC |
219 | { STRING_COMMA_LEN ("DllMain@12") }, |
220 | { STRING_COMMA_LEN ("DllEntryPoint@0") }, | |
221 | { STRING_COMMA_LEN ("DllMainCRTStartup@12") }, | |
222 | { STRING_COMMA_LEN ("_cygwin_dll_entry@12") }, | |
223 | { STRING_COMMA_LEN ("_cygwin_crt0_common@8") }, | |
224 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry@12") }, | |
225 | { STRING_COMMA_LEN ("cygwin_attach_dll") }, | |
1b610c93 | 226 | #endif |
0112cd26 NC |
227 | { STRING_COMMA_LEN ("cygwin_premain0") }, |
228 | { STRING_COMMA_LEN ("cygwin_premain1") }, | |
229 | { STRING_COMMA_LEN ("cygwin_premain2") }, | |
230 | { STRING_COMMA_LEN ("cygwin_premain3") }, | |
5b8273bf | 231 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
232 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
233 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
5b8273bf | 234 | /* Global vars that should not be exported. */ |
0112cd26 NC |
235 | { STRING_COMMA_LEN ("impure_ptr") }, |
236 | { STRING_COMMA_LEN ("_impure_ptr") }, | |
237 | { STRING_COMMA_LEN ("_fmode") }, | |
238 | { STRING_COMMA_LEN ("environ") }, | |
db86b2dc | 239 | { NULL, 0 } |
5b8273bf | 240 | }; |
b044cda1 | 241 | |
5b8273bf NC |
242 | #define PE_ARCH_i386 1 |
243 | #define PE_ARCH_sh 2 | |
244 | #define PE_ARCH_mips 3 | |
245 | #define PE_ARCH_arm 4 | |
775cabad | 246 | #define PE_ARCH_arm_epoc 5 |
7148cc28 | 247 | #define PE_ARCH_arm_wince 6 |
c6c37250 | 248 | |
522f09cd KT |
249 | /* Don't make it constant as underscore mode gets possibly overriden |
250 | by target or -(no-)leading-underscore option. */ | |
251 | static pe_details_type pe_detail_list[] = | |
775cabad | 252 | { |
c6c37250 | 253 | { |
99ad8390 NC |
254 | #ifdef pe_use_x86_64 |
255 | "pei-x86-64", | |
256 | "pe-x86-64", | |
257 | 3 /* R_IMAGEBASE */, | |
258 | #else | |
c6c37250 DD |
259 | "pei-i386", |
260 | "pe-i386", | |
261 | 7 /* R_IMAGEBASE */, | |
99ad8390 | 262 | #endif |
c6c37250 DD |
263 | PE_ARCH_i386, |
264 | bfd_arch_i386, | |
d74720d2 KT |
265 | #ifdef pe_use_x86_64 |
266 | FALSE, | |
267 | #else | |
5b8273bf | 268 | TRUE, |
d74720d2 | 269 | #endif |
5b8273bf | 270 | autofilter_symbollist_i386 |
c6c37250 | 271 | }, |
344a211f NC |
272 | { |
273 | "pei-shl", | |
274 | "pe-shl", | |
275 | 16 /* R_SH_IMAGEBASE */, | |
276 | PE_ARCH_sh, | |
277 | bfd_arch_sh, | |
5b8273bf NC |
278 | TRUE, |
279 | autofilter_symbollist_generic | |
344a211f NC |
280 | }, |
281 | { | |
282 | "pei-mips", | |
283 | "pe-mips", | |
284 | 34 /* MIPS_R_RVA */, | |
285 | PE_ARCH_mips, | |
286 | bfd_arch_mips, | |
5b8273bf NC |
287 | FALSE, |
288 | autofilter_symbollist_generic | |
344a211f NC |
289 | }, |
290 | { | |
291 | "pei-arm-little", | |
292 | "pe-arm-little", | |
293 | 11 /* ARM_RVA32 */, | |
294 | PE_ARCH_arm, | |
295 | bfd_arch_arm, | |
5b8273bf NC |
296 | TRUE, |
297 | autofilter_symbollist_generic | |
344a211f | 298 | }, |
775cabad NC |
299 | { |
300 | "epoc-pei-arm-little", | |
301 | "epoc-pe-arm-little", | |
302 | 11 /* ARM_RVA32 */, | |
303 | PE_ARCH_arm_epoc, | |
304 | bfd_arch_arm, | |
5b8273bf NC |
305 | FALSE, |
306 | autofilter_symbollist_generic | |
775cabad | 307 | }, |
7148cc28 NC |
308 | { |
309 | "pei-arm-wince-little", | |
310 | "pe-arm-wince-little", | |
311 | 2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */ | |
312 | PE_ARCH_arm_wince, | |
313 | bfd_arch_arm, | |
314 | FALSE, | |
315 | autofilter_symbollist_generic | |
316 | }, | |
5b8273bf | 317 | { NULL, NULL, 0, 0, 0, FALSE, NULL } |
c6c37250 DD |
318 | }; |
319 | ||
e916811a | 320 | static const pe_details_type *pe_details; |
c6c37250 | 321 | |
775cabad | 322 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
e916811a | 323 | static const autofilter_entry_type autofilter_liblist[] = |
775cabad | 324 | { |
0112cd26 NC |
325 | { STRING_COMMA_LEN ("libcegcc") }, |
326 | { STRING_COMMA_LEN ("libcygwin") }, | |
327 | { STRING_COMMA_LEN ("libgcc") }, | |
81b07b16 | 328 | { STRING_COMMA_LEN ("libgcc_s") }, |
0112cd26 NC |
329 | { STRING_COMMA_LEN ("libstdc++") }, |
330 | { STRING_COMMA_LEN ("libmingw32") }, | |
331 | { STRING_COMMA_LEN ("libmingwex") }, | |
332 | { STRING_COMMA_LEN ("libg2c") }, | |
333 | { STRING_COMMA_LEN ("libsupc++") }, | |
334 | { STRING_COMMA_LEN ("libobjc") }, | |
335 | { STRING_COMMA_LEN ("libgcj") }, | |
db86b2dc | 336 | { NULL, 0 } |
b044cda1 | 337 | }; |
775cabad | 338 | |
81b07b16 DK |
339 | /* Regardless of the suffix issue mentioned above, we must ensure that |
340 | we do not falsely match on a leading substring, such as when libtool | |
341 | builds libstdc++ as a DLL using libsupc++convenience.a as an intermediate. | |
342 | This routine ensures that the leading part of the name matches and that | |
343 | it is followed by only an optional version suffix and a file extension, | |
344 | returning zero if so or -1 if not. */ | |
345 | static int libnamencmp (const char *libname, const autofilter_entry_type *afptr) | |
346 | { | |
42627821 | 347 | if (filename_ncmp (libname, afptr->name, afptr->len)) |
81b07b16 DK |
348 | return -1; |
349 | ||
350 | libname += afptr->len; | |
351 | ||
352 | /* Be liberal in interpreting what counts as a version suffix; we | |
353 | accept anything that has a dash to separate it from the name and | |
354 | begins with a digit. */ | |
355 | if (libname[0] == '-') | |
356 | { | |
357 | if (!ISDIGIT (*++libname)) | |
358 | return -1; | |
359 | /* Ensure the filename has an extension. */ | |
360 | while (*++libname != '.') | |
361 | if (!*libname) | |
362 | return -1; | |
363 | } | |
364 | else if (libname[0] != '.') | |
365 | return -1; | |
366 | ||
367 | return 0; | |
368 | } | |
369 | ||
e916811a | 370 | static const autofilter_entry_type autofilter_objlist[] = |
775cabad | 371 | { |
0112cd26 NC |
372 | { STRING_COMMA_LEN ("crt0.o") }, |
373 | { STRING_COMMA_LEN ("crt1.o") }, | |
374 | { STRING_COMMA_LEN ("crt2.o") }, | |
375 | { STRING_COMMA_LEN ("dllcrt1.o") }, | |
376 | { STRING_COMMA_LEN ("dllcrt2.o") }, | |
377 | { STRING_COMMA_LEN ("gcrt0.o") }, | |
378 | { STRING_COMMA_LEN ("gcrt1.o") }, | |
379 | { STRING_COMMA_LEN ("gcrt2.o") }, | |
380 | { STRING_COMMA_LEN ("crtbegin.o") }, | |
381 | { STRING_COMMA_LEN ("crtend.o") }, | |
db86b2dc | 382 | { NULL, 0 } |
b044cda1 | 383 | }; |
775cabad | 384 | |
e916811a | 385 | static const autofilter_entry_type autofilter_symbolprefixlist[] = |
775cabad | 386 | { |
00479ba8 NC |
387 | /* _imp_ is treated specially, as it is always underscored. */ |
388 | /* { STRING_COMMA_LEN ("_imp_") }, */ | |
389 | /* Don't export some c++ symbols. */ | |
0112cd26 | 390 | { STRING_COMMA_LEN ("__rtti_") }, |
00479ba8 | 391 | { STRING_COMMA_LEN ("__builtin_") }, |
39cebe23 | 392 | /* Don't re-export auto-imported symbols. */ |
17f73277 | 393 | { STRING_COMMA_LEN ("__nm_") }, |
775cabad | 394 | /* Don't export symbols specifying internal DLL layout. */ |
0112cd26 | 395 | { STRING_COMMA_LEN ("_head_") }, |
b92216aa DS |
396 | { STRING_COMMA_LEN ("_IMPORT_DESCRIPTOR_") }, |
397 | /* Don't export section labels or artificial symbols | |
398 | (eg ".weak.foo". */ | |
399 | { STRING_COMMA_LEN (".") }, | |
db86b2dc | 400 | { NULL, 0 } |
b044cda1 | 401 | }; |
775cabad | 402 | |
e916811a | 403 | static const autofilter_entry_type autofilter_symbolsuffixlist[] = |
775cabad | 404 | { |
0112cd26 | 405 | { STRING_COMMA_LEN ("_iname") }, |
b92216aa | 406 | { STRING_COMMA_LEN ("_NULL_THUNK_DATA") }, |
db86b2dc | 407 | { NULL, 0 } |
b044cda1 CW |
408 | }; |
409 | ||
c6c37250 DD |
410 | #define U(str) (pe_details->underscored ? "_" str : str) |
411 | ||
412 | void | |
1579bae1 | 413 | pe_dll_id_target (const char *target) |
c6c37250 DD |
414 | { |
415 | int i; | |
775cabad | 416 | |
d643799d | 417 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
418 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
419 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 420 | { |
522f09cd KT |
421 | int u = pe_leading_underscore; /* Underscoring mode. -1 for use default. */ |
422 | if (u == -1) | |
423 | bfd_get_target_info (target, NULL, NULL, &u, NULL); | |
d74720d2 KT |
424 | if (u == -1) |
425 | abort (); | |
426 | pe_detail_list[i].underscored = (u != 0 ? TRUE : FALSE); | |
d643799d | 427 | pe_details = pe_detail_list + i; |
d74720d2 | 428 | pe_leading_underscore = (u != 0 ? 1 : 0); |
c6c37250 DD |
429 | return; |
430 | } | |
431 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
432 | exit (1); | |
433 | } | |
434 | ||
b7a26f91 | 435 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 436 | them out by pages. */ |
252b5132 | 437 | |
775cabad NC |
438 | typedef struct |
439 | { | |
440 | bfd_vma vma; | |
441 | char type; | |
442 | short extra; | |
443 | } | |
444 | reloc_data_type; | |
c6c37250 | 445 | |
252b5132 | 446 | static int |
1579bae1 | 447 | reloc_sort (const void *va, const void *vb) |
252b5132 | 448 | { |
1579bae1 AM |
449 | bfd_vma a = ((const reloc_data_type *) va)->vma; |
450 | bfd_vma b = ((const reloc_data_type *) vb)->vma; | |
775cabad | 451 | |
c6c37250 | 452 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
453 | } |
454 | ||
455 | static int | |
1579bae1 | 456 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 457 | { |
1579bae1 AM |
458 | const def_file_export *a = va; |
459 | const def_file_export *b = vb; | |
7fcab871 KT |
460 | char *an = a->name; |
461 | char *bn = b->name; | |
462 | if (a->its_name) | |
463 | an = a->its_name; | |
464 | if (b->its_name) | |
465 | bn = b->its_name; | |
466 | ||
467 | return strcmp (an, bn); | |
252b5132 RH |
468 | } |
469 | ||
775cabad | 470 | /* Read and process the .DEF file. */ |
252b5132 RH |
471 | |
472 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
473 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 474 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
475 | |
476 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 477 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
478 | static int export_table_size; |
479 | static int count_exported; | |
480 | static int count_exported_byname; | |
481 | static int count_with_ordinals; | |
482 | static const char *dll_name; | |
483 | static int min_ordinal, max_ordinal; | |
484 | static int *exported_symbols; | |
485 | ||
775cabad NC |
486 | typedef struct exclude_list_struct |
487 | { | |
488 | char *string; | |
489 | struct exclude_list_struct *next; | |
e1c37eb5 | 490 | exclude_type type; |
775cabad NC |
491 | } |
492 | exclude_list_struct; | |
86b1cc60 | 493 | |
252b5132 RH |
494 | static struct exclude_list_struct *excludes = 0; |
495 | ||
496 | void | |
e1c37eb5 | 497 | pe_dll_add_excludes (const char *new_excludes, const exclude_type type) |
252b5132 RH |
498 | { |
499 | char *local_copy; | |
500 | char *exclude_string; | |
501 | ||
502 | local_copy = xstrdup (new_excludes); | |
503 | ||
504 | exclude_string = strtok (local_copy, ",:"); | |
505 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
506 | { | |
507 | struct exclude_list_struct *new_exclude; | |
508 | ||
1579bae1 AM |
509 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
510 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 511 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 512 | new_exclude->type = type; |
252b5132 RH |
513 | new_exclude->next = excludes; |
514 | excludes = new_exclude; | |
515 | } | |
516 | ||
517 | free (local_copy); | |
518 | } | |
519 | ||
00479ba8 NC |
520 | static bfd_boolean |
521 | is_import (const char* n) | |
522 | { | |
e916811a | 523 | return (CONST_STRNEQ (n, "__imp_")); |
00479ba8 | 524 | } |
70b0be79 | 525 | |
775cabad NC |
526 | /* abfd is a bfd containing n (or NULL) |
527 | It can be used for contextual checks. */ | |
528 | ||
252b5132 | 529 | static int |
1579bae1 | 530 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 RH |
531 | { |
532 | int i; | |
533 | struct exclude_list_struct *ex; | |
e916811a | 534 | const autofilter_entry_type *afptr; |
70b0be79 CF |
535 | const char * libname = 0; |
536 | if (abfd && abfd->my_archive) | |
537 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 538 | |
252b5132 RH |
539 | for (i = 0; i < d->num_exports; i++) |
540 | if (strcmp (d->exports[i].name, n) == 0) | |
541 | return 0; | |
775cabad | 542 | |
252b5132 RH |
543 | if (pe_dll_do_default_excludes) |
544 | { | |
663dd378 | 545 | const char * p; |
775cabad NC |
546 | int len; |
547 | ||
b044cda1 | 548 | if (pe_dll_extra_pe_debug) |
775cabad NC |
549 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
550 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
551 | |
552 | /* First of all, make context checks: | |
1579bae1 | 553 | Don't export anything from standard libs. */ |
658957db | 554 | if (libname) |
b044cda1 CW |
555 | { |
556 | afptr = autofilter_liblist; | |
775cabad | 557 | |
b044cda1 CW |
558 | while (afptr->name) |
559 | { | |
81b07b16 | 560 | if (libnamencmp (libname, afptr) == 0 ) |
b044cda1 CW |
561 | return 0; |
562 | afptr++; | |
563 | } | |
564 | } | |
565 | ||
775cabad | 566 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 567 | |
59d28a94 | 568 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 569 | { |
b7a26f91 KH |
570 | afptr = autofilter_objlist; |
571 | while (afptr->name) | |
59d28a94 | 572 | { |
b7a26f91 KH |
573 | if (strcmp (p, afptr->name) == 0) |
574 | return 0; | |
59d28a94 | 575 | afptr++; |
663dd378 | 576 | } |
775cabad | 577 | } |
b044cda1 CW |
578 | |
579 | /* Don't try to blindly exclude all symbols | |
580 | that begin with '__'; this was tried and | |
5b8273bf NC |
581 | it is too restrictive. Instead we have |
582 | a target specific list to use: */ | |
1b610c93 | 583 | afptr = pe_details->autofilter_symbollist; |
99ad8390 | 584 | |
b044cda1 CW |
585 | while (afptr->name) |
586 | { | |
587 | if (strcmp (n, afptr->name) == 0) | |
588 | return 0; | |
775cabad | 589 | |
b7a26f91 | 590 | afptr++; |
b044cda1 CW |
591 | } |
592 | ||
775cabad | 593 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
594 | afptr = autofilter_symbolprefixlist; |
595 | while (afptr->name) | |
596 | { | |
597 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
598 | return 0; | |
775cabad | 599 | |
b7a26f91 | 600 | afptr++; |
b044cda1 CW |
601 | } |
602 | ||
775cabad NC |
603 | /* Finally, exclude symbols ending with ... */ |
604 | len = strlen (n); | |
605 | afptr = autofilter_symbolsuffixlist; | |
606 | while (afptr->name) | |
607 | { | |
b7a26f91 | 608 | if ((len >= afptr->len) |
775cabad | 609 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
610 | && strncmp (n + len - afptr->len, afptr->name, |
611 | afptr->len + 1) == 0) | |
775cabad NC |
612 | return 0; |
613 | ||
b7a26f91 | 614 | afptr++; |
775cabad | 615 | } |
252b5132 | 616 | } |
775cabad | 617 | |
252b5132 | 618 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 | 619 | { |
e1c37eb5 | 620 | if (ex->type == EXCLUDELIBS) |
70b0be79 CF |
621 | { |
622 | if (libname | |
42627821 | 623 | && ((filename_cmp (libname, ex->string) == 0) |
70b0be79 CF |
624 | || (strcasecmp ("ALL", ex->string) == 0))) |
625 | return 0; | |
626 | } | |
e1c37eb5 DK |
627 | else if (ex->type == EXCLUDEFORIMPLIB) |
628 | { | |
42627821 | 629 | if (filename_cmp (abfd->filename, ex->string) == 0) |
e1c37eb5 DK |
630 | return 0; |
631 | } | |
70b0be79 | 632 | else if (strcmp (n, ex->string) == 0) |
658957db | 633 | return 0; |
70b0be79 | 634 | } |
775cabad | 635 | |
252b5132 RH |
636 | return 1; |
637 | } | |
638 | ||
639 | static void | |
c1711530 | 640 | process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
641 | { |
642 | int i, j; | |
643 | struct bfd_link_hash_entry *blhe; | |
644 | bfd *b; | |
198beae2 | 645 | struct bfd_section *s; |
d643799d | 646 | def_file_export *e = 0; |
252b5132 RH |
647 | |
648 | if (!pe_def_file) | |
649 | pe_def_file = def_file_empty (); | |
650 | ||
651 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 652 | sections, and push those into the def file too. */ |
252b5132 RH |
653 | for (b = info->input_bfds; b; b = b->link_next) |
654 | { | |
655 | s = bfd_get_section_by_name (b, ".drectve"); | |
656 | if (s) | |
657 | { | |
eea6121a | 658 | long size = s->size; |
252b5132 | 659 | char *buf = xmalloc (size); |
775cabad | 660 | |
252b5132 RH |
661 | bfd_get_section_contents (b, s, buf, 0, size); |
662 | def_file_add_directive (pe_def_file, buf, size); | |
663 | free (buf); | |
664 | } | |
665 | } | |
666 | ||
c1711530 DK |
667 | /* Process aligned common symbol information from the |
668 | .drectve sections now; common symbol allocation is | |
669 | done before final link, so it will be too late to | |
670 | process them in process_embedded_commands() called | |
671 | from _bfd_coff_link_input_bfd(). */ | |
672 | if (pe_def_file->aligncomms) | |
673 | { | |
674 | def_file_aligncomm *ac = pe_def_file->aligncomms; | |
675 | while (ac) | |
676 | { | |
677 | struct coff_link_hash_entry *sym_hash; | |
678 | sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
679 | ac->symbol_name, FALSE, FALSE, FALSE); | |
680 | if (sym_hash && sym_hash->root.type == bfd_link_hash_common | |
681 | && sym_hash->root.u.c.p->alignment_power < (unsigned) ac->alignment) | |
682 | { | |
683 | sym_hash->root.u.c.p->alignment_power = (unsigned) ac->alignment; | |
684 | } | |
685 | ac = ac->next; | |
686 | } | |
687 | } | |
688 | ||
2927aaca NC |
689 | /* If we are building an executable and there is nothing |
690 | to export, we do not build an export table at all. */ | |
691 | if (info->executable && pe_def_file->num_exports == 0 | |
692 | && (!pe_dll_export_everything || pe_dll_exclude_all_symbols)) | |
2b817be1 NC |
693 | return; |
694 | ||
86b1cc60 | 695 | /* Now, maybe export everything else the default way. */ |
2927aaca NC |
696 | if ((pe_dll_export_everything || pe_def_file->num_exports == 0) |
697 | && !pe_dll_exclude_all_symbols) | |
252b5132 RH |
698 | { |
699 | for (b = info->input_bfds; b; b = b->link_next) | |
700 | { | |
701 | asymbol **symbols; | |
5c1d2f5f | 702 | int nsyms; |
252b5132 | 703 | |
5c1d2f5f AM |
704 | if (!bfd_generic_link_read_symbols (b)) |
705 | { | |
706 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
707 | return; | |
708 | } | |
709 | ||
710 | symbols = bfd_get_outsymbols (b); | |
711 | nsyms = bfd_get_symcount (b); | |
252b5132 RH |
712 | |
713 | for (j = 0; j < nsyms; j++) | |
714 | { | |
d643799d | 715 | /* We should export symbols which are either global or not |
1579bae1 AM |
716 | anything at all. (.bss data is the latter) |
717 | We should not export undefined symbols. */ | |
09e2aba4 DK |
718 | bfd_boolean would_export = symbols[j]->section != &bfd_und_section |
719 | && ((symbols[j]->flags & BSF_GLOBAL) | |
720 | || (symbols[j]->flags == 0)); | |
721 | if (lang_elf_version_info && would_export) | |
722 | { | |
723 | bfd_boolean hide = 0; | |
09e2aba4 | 724 | (void) bfd_find_version_for_sym (lang_elf_version_info, |
fd11958c | 725 | symbols[j]->name, &hide); |
09e2aba4 DK |
726 | would_export = !hide; |
727 | } | |
728 | if (would_export) | |
252b5132 RH |
729 | { |
730 | const char *sn = symbols[j]->name; | |
b044cda1 | 731 | |
775cabad | 732 | /* We should not re-export imported stuff. */ |
b044cda1 | 733 | { |
e916811a | 734 | char *name; |
00479ba8 NC |
735 | if (is_import (sn)) |
736 | continue; | |
737 | ||
e916811a | 738 | name = xmalloc (strlen ("__imp_") + strlen (sn) + 1); |
00479ba8 | 739 | sprintf (name, "%s%s", "__imp_", sn); |
775cabad | 740 | |
b044cda1 | 741 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 742 | FALSE, FALSE, FALSE); |
b044cda1 CW |
743 | free (name); |
744 | ||
b7a26f91 | 745 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
746 | continue; |
747 | } | |
748 | ||
00479ba8 | 749 | if (pe_details->underscored && *sn == '_') |
252b5132 | 750 | sn++; |
775cabad | 751 | |
b044cda1 CW |
752 | if (auto_export (b, pe_def_file, sn)) |
753 | { | |
db17156e | 754 | int is_dup = 0; |
b044cda1 | 755 | def_file_export *p; |
db17156e KT |
756 | p = def_file_add_export (pe_def_file, sn, 0, -1, |
757 | NULL, &is_dup); | |
775cabad | 758 | /* Fill data flag properly, from dlltool.c. */ |
db17156e KT |
759 | if (!is_dup) |
760 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); | |
b044cda1 | 761 | } |
252b5132 RH |
762 | } |
763 | } | |
764 | } | |
765 | } | |
766 | ||
767 | #undef NE | |
768 | #define NE pe_def_file->num_exports | |
769 | ||
177b81d6 DK |
770 | /* Don't create an empty export table. */ |
771 | if (NE == 0) | |
772 | return; | |
773 | ||
86b1cc60 | 774 | /* Canonicalize the export list. */ |
252b5132 RH |
775 | if (pe_dll_kill_ats) |
776 | { | |
777 | for (i = 0; i < NE; i++) | |
778 | { | |
779 | if (strchr (pe_def_file->exports[i].name, '@')) | |
780 | { | |
86b1cc60 | 781 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
782 | pointing to the same memory as name, or might not |
783 | have. */ | |
784 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 785 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
a8d701fd | 786 | char *tmp_at = strchr (tmp, '@'); |
775cabad | 787 | |
a8d701fd DS |
788 | if (tmp_at) |
789 | *tmp_at = 0; | |
790 | else | |
791 | einfo (_("%XCannot export %s: invalid export name\n"), | |
792 | pe_def_file->exports[i].name); | |
252b5132 RH |
793 | pe_def_file->exports[i].name = tmp; |
794 | } | |
795 | } | |
796 | } | |
797 | ||
798 | if (pe_dll_stdcall_aliases) | |
799 | { | |
800 | for (i = 0; i < NE; i++) | |
801 | { | |
00479ba8 NC |
802 | if (is_import (pe_def_file->exports[i].name)) |
803 | continue; | |
804 | ||
252b5132 RH |
805 | if (strchr (pe_def_file->exports[i].name, '@')) |
806 | { | |
db17156e | 807 | int is_dup = 1; |
1579bae1 | 808 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 809 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 810 | |
252b5132 | 811 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 812 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 813 | def_file_add_export (pe_def_file, tmp, |
b044cda1 | 814 | pe_def_file->exports[i].internal_name, |
db17156e KT |
815 | -1, NULL, &is_dup); |
816 | if (is_dup) | |
817 | free (tmp); | |
252b5132 RH |
818 | } |
819 | } | |
820 | } | |
821 | ||
86b1cc60 KH |
822 | /* Convenience, but watch out for it changing. */ |
823 | e = pe_def_file->exports; | |
252b5132 | 824 | |
1579bae1 | 825 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
198beae2 | 826 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); |
252b5132 | 827 | |
198beae2 | 828 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); |
252b5132 RH |
829 | max_ordinal = 0; |
830 | min_ordinal = 65536; | |
831 | count_exported = 0; | |
832 | count_exported_byname = 0; | |
833 | count_with_ordinals = 0; | |
834 | ||
1579bae1 AM |
835 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), |
836 | pe_export_sort); | |
252b5132 RH |
837 | for (i = 0, j = 0; i < NE; i++) |
838 | { | |
839 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
840 | { | |
870df5dc | 841 | /* This is a duplicate. */ |
252b5132 RH |
842 | if (e[j - 1].ordinal != -1 |
843 | && e[i].ordinal != -1 | |
844 | && e[j - 1].ordinal != e[i].ordinal) | |
845 | { | |
870df5dc NC |
846 | if (pe_dll_warn_dup_exports) |
847 | /* xgettext:c-format */ | |
486e80e2 | 848 | einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 849 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
850 | } |
851 | else | |
852 | { | |
870df5dc NC |
853 | if (pe_dll_warn_dup_exports) |
854 | /* xgettext:c-format */ | |
855 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
856 | e[j - 1].name); | |
252b5132 | 857 | } |
775cabad | 858 | |
486e80e2 | 859 | if (e[i].ordinal != -1) |
252b5132 RH |
860 | e[j - 1].ordinal = e[i].ordinal; |
861 | e[j - 1].flag_private |= e[i].flag_private; | |
862 | e[j - 1].flag_constant |= e[i].flag_constant; | |
863 | e[j - 1].flag_noname |= e[i].flag_noname; | |
864 | e[j - 1].flag_data |= e[i].flag_data; | |
865 | } | |
866 | else | |
867 | { | |
868 | if (i != j) | |
869 | e[j] = e[i]; | |
870 | j++; | |
871 | } | |
872 | } | |
873 | pe_def_file->num_exports = j; /* == NE */ | |
874 | ||
875 | for (i = 0; i < NE; i++) | |
876 | { | |
1579bae1 | 877 | char *name; |
1579bae1 | 878 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 NC |
879 | if (pe_details->underscored |
880 | && (*pe_def_file->exports[i].internal_name != '@')) | |
c6c37250 DD |
881 | { |
882 | *name = '_'; | |
883 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
884 | } | |
885 | else | |
886 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
887 | |
888 | blhe = bfd_link_hash_lookup (info->hash, | |
889 | name, | |
b34976b6 | 890 | FALSE, FALSE, TRUE); |
252b5132 | 891 | |
8a5b676c | 892 | if (blhe |
d643799d | 893 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 894 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
895 | { |
896 | count_exported++; | |
897 | if (!pe_def_file->exports[i].flag_noname) | |
898 | count_exported_byname++; | |
8a5b676c DD |
899 | |
900 | /* Only fill in the sections. The actual offsets are computed | |
901 | in fill_exported_offsets() after common symbols are laid | |
902 | out. */ | |
d643799d | 903 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
904 | exported_symbol_sections[i] = blhe->u.def.section; |
905 | else | |
906 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 907 | |
75898d57 DK |
908 | if (pe_def_file->exports[i].ordinal != -1) |
909 | { | |
910 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
911 | max_ordinal = pe_def_file->exports[i].ordinal; | |
912 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
913 | min_ordinal = pe_def_file->exports[i].ordinal; | |
914 | count_with_ordinals++; | |
915 | } | |
916 | } | |
917 | /* Check for forward exports. These are indicated in DEF files by an | |
918 | export directive of the form NAME1 = MODULE-NAME.EXTERNAL-NAME | |
919 | but we must take care not to be fooled when the user wants to export | |
920 | a symbol that actually really has a dot in it, so we only check | |
921 | for them here, after real defined symbols have already been matched. */ | |
922 | else if (strchr (pe_def_file->exports[i].internal_name, '.')) | |
923 | { | |
924 | count_exported++; | |
925 | if (!pe_def_file->exports[i].flag_noname) | |
926 | count_exported_byname++; | |
927 | ||
928 | pe_def_file->exports[i].flag_forward = 1; | |
929 | ||
252b5132 RH |
930 | if (pe_def_file->exports[i].ordinal != -1) |
931 | { | |
932 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
933 | max_ordinal = pe_def_file->exports[i].ordinal; | |
934 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
935 | min_ordinal = pe_def_file->exports[i].ordinal; | |
936 | count_with_ordinals++; | |
937 | } | |
938 | } | |
939 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
940 | { | |
941 | /* xgettext:c-format */ | |
942 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
943 | pe_def_file->exports[i].internal_name); | |
944 | } | |
945 | else if (blhe) | |
946 | { | |
947 | /* xgettext:c-format */ | |
948 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
949 | pe_def_file->exports[i].internal_name, | |
950 | blhe->type, bfd_link_hash_defined); | |
951 | } | |
952 | else | |
953 | { | |
954 | /* xgettext:c-format */ | |
955 | einfo (_("%XCannot export %s: symbol not found\n"), | |
956 | pe_def_file->exports[i].internal_name); | |
957 | } | |
958 | free (name); | |
959 | } | |
960 | } | |
961 | ||
775cabad | 962 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
963 | |
964 | static void | |
1579bae1 | 965 | build_filler_bfd (int include_edata) |
252b5132 RH |
966 | { |
967 | lang_input_statement_type *filler_file; | |
968 | filler_file = lang_add_input_file ("dll stuff", | |
969 | lang_input_file_is_fake_enum, | |
970 | NULL); | |
f13a99db AM |
971 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", |
972 | link_info.output_bfd); | |
252b5132 RH |
973 | if (filler_bfd == NULL |
974 | || !bfd_set_arch_mach (filler_bfd, | |
f13a99db AM |
975 | bfd_get_arch (link_info.output_bfd), |
976 | bfd_get_mach (link_info.output_bfd))) | |
252b5132 | 977 | { |
36230712 | 978 | einfo ("%X%P: can not create BFD: %E\n"); |
252b5132 RH |
979 | return; |
980 | } | |
981 | ||
c6c37250 | 982 | if (include_edata) |
252b5132 | 983 | { |
c6c37250 DD |
984 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
985 | if (edata_s == NULL | |
986 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
987 | (SEC_HAS_CONTENTS | |
988 | | SEC_ALLOC | |
989 | | SEC_LOAD | |
990 | | SEC_KEEP | |
991 | | SEC_IN_MEMORY))) | |
992 | { | |
993 | einfo ("%X%P: can not create .edata section: %E\n"); | |
994 | return; | |
995 | } | |
996 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 997 | } |
252b5132 RH |
998 | |
999 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
1000 | if (reloc_s == NULL | |
1001 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
1002 | (SEC_HAS_CONTENTS | |
1003 | | SEC_ALLOC | |
1004 | | SEC_LOAD | |
1005 | | SEC_KEEP | |
1006 | | SEC_IN_MEMORY))) | |
1007 | { | |
1008 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
1009 | return; | |
1010 | } | |
775cabad | 1011 | |
252b5132 RH |
1012 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
1013 | ||
1014 | ldlang_add_file (filler_file); | |
1015 | } | |
1016 | ||
775cabad | 1017 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
1018 | |
1019 | static void | |
1579bae1 | 1020 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
1021 | { |
1022 | int i, next_ordinal; | |
1023 | int name_table_size = 0; | |
1024 | const char *dlnp; | |
1025 | ||
1026 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 1027 | and what the range of ordinals is. */ |
252b5132 | 1028 | if (pe_def_file->name) |
775cabad | 1029 | dll_name = pe_def_file->name; |
252b5132 RH |
1030 | else |
1031 | { | |
1032 | dll_name = abfd->filename; | |
775cabad | 1033 | |
252b5132 | 1034 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
1035 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
1036 | dll_name = dlnp + 1; | |
252b5132 RH |
1037 | } |
1038 | ||
1039 | if (count_with_ordinals && max_ordinal > count_exported) | |
1040 | { | |
1041 | if (min_ordinal > max_ordinal - count_exported + 1) | |
1042 | min_ordinal = max_ordinal - count_exported + 1; | |
1043 | } | |
1044 | else | |
1045 | { | |
1046 | min_ordinal = 1; | |
1047 | max_ordinal = count_exported; | |
1048 | } | |
252b5132 | 1049 | |
775cabad | 1050 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 1051 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
1052 | for (i = 0; i < export_table_size; i++) |
1053 | exported_symbols[i] = -1; | |
1054 | ||
86b1cc60 | 1055 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
1056 | for (i = 0; i < NE; i++) |
1057 | { | |
a8d701fd DS |
1058 | if (exported_symbol_sections[i] || |
1059 | pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
1060 | { |
1061 | if (pe_def_file->exports[i].ordinal != -1) | |
1062 | { | |
1063 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
1064 | int pi = exported_symbols[ei]; | |
775cabad | 1065 | |
252b5132 RH |
1066 | if (pi != -1) |
1067 | { | |
1068 | /* xgettext:c-format */ | |
486e80e2 | 1069 | einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
1070 | pe_def_file->exports[i].ordinal, |
1071 | pe_def_file->exports[i].name, | |
1072 | pe_def_file->exports[pi].name); | |
1073 | } | |
1074 | exported_symbols[ei] = i; | |
1075 | } | |
7fcab871 KT |
1076 | if (pe_def_file->exports[i].its_name) |
1077 | name_table_size += strlen (pe_def_file->exports[i].its_name) + 1; | |
1078 | else | |
1079 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
252b5132 | 1080 | } |
a8d701fd DS |
1081 | |
1082 | /* Reserve space for the forward name. */ | |
1083 | if (pe_def_file->exports[i].flag_forward) | |
1084 | { | |
1085 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
1086 | } | |
252b5132 RH |
1087 | } |
1088 | ||
1089 | next_ordinal = min_ordinal; | |
1090 | for (i = 0; i < NE; i++) | |
a8d701fd DS |
1091 | if ((exported_symbol_sections[i] || |
1092 | pe_def_file->exports[i].flag_forward) && | |
1093 | pe_def_file->exports[i].ordinal == -1) | |
1094 | { | |
1095 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
1096 | next_ordinal++; | |
775cabad | 1097 | |
a8d701fd DS |
1098 | exported_symbols[next_ordinal - min_ordinal] = i; |
1099 | pe_def_file->exports[i].ordinal = next_ordinal; | |
1100 | } | |
252b5132 | 1101 | |
86b1cc60 | 1102 | /* OK, now we can allocate some memory. */ |
775cabad NC |
1103 | edata_sz = (40 /* directory */ |
1104 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
1105 | + 4 * count_exported_byname /* name ptrs */ |
1106 | + 2 * count_exported_byname /* ordinals */ | |
1107 | + name_table_size + strlen (dll_name) + 1); | |
1108 | } | |
1109 | ||
8a5b676c | 1110 | /* Fill the exported symbol offsets. The preliminary work has already |
c1711530 | 1111 | been done in process_def_file_and_drectve(). */ |
8a5b676c DD |
1112 | |
1113 | static void | |
1579bae1 | 1114 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 1115 | { |
f0c87f88 | 1116 | int i; |
8a5b676c | 1117 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 1118 | |
8a5b676c DD |
1119 | for (i = 0; i < pe_def_file->num_exports; i++) |
1120 | { | |
1579bae1 | 1121 | char *name; |
775cabad | 1122 | |
1579bae1 | 1123 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 1124 | if (pe_details->underscored |
1579bae1 | 1125 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
1126 | { |
1127 | *name = '_'; | |
1128 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
1129 | } | |
1130 | else | |
1131 | strcpy (name, pe_def_file->exports[i].internal_name); | |
1132 | ||
1133 | blhe = bfd_link_hash_lookup (info->hash, | |
1134 | name, | |
b34976b6 | 1135 | FALSE, FALSE, TRUE); |
8a5b676c | 1136 | |
1579bae1 | 1137 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
1138 | exported_symbol_offsets[i] = blhe->u.def.value; |
1139 | ||
8a5b676c DD |
1140 | free (name); |
1141 | } | |
1142 | } | |
1143 | ||
252b5132 | 1144 | static void |
1579bae1 | 1145 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 1146 | { |
03a1c9a7 | 1147 | int s, hint; |
252b5132 | 1148 | unsigned char *edirectory; |
2f9636ba AM |
1149 | unsigned char *eaddresses; |
1150 | unsigned char *enameptrs; | |
1151 | unsigned char *eordinals; | |
47639182 | 1152 | char *enamestr; |
252b5132 RH |
1153 | time_t now; |
1154 | ||
1155 | time (&now); | |
1156 | ||
1579bae1 | 1157 | edata_d = xmalloc (edata_sz); |
252b5132 | 1158 | |
86b1cc60 | 1159 | /* Note use of array pointer math here. */ |
252b5132 | 1160 | edirectory = edata_d; |
c7e2358a | 1161 | eaddresses = edirectory + 40; |
2f9636ba AM |
1162 | enameptrs = eaddresses + 4 * export_table_size; |
1163 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 1164 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 1165 | |
1579bae1 AM |
1166 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
1167 | + edata_s->output_section->vma - image_base) | |
252b5132 | 1168 | |
c2a94a7a | 1169 | memset (edata_d, 0, edata_sz); |
252b5132 RH |
1170 | bfd_put_32 (abfd, now, edata_d + 4); |
1171 | if (pe_def_file->version_major != -1) | |
1172 | { | |
1173 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1174 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1175 | } | |
775cabad | 1176 | |
252b5132 RH |
1177 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1178 | strcpy (enamestr, dll_name); | |
1179 | enamestr += strlen (enamestr) + 1; | |
1180 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1181 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1182 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1183 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1184 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1185 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1186 | ||
8a5b676c DD |
1187 | fill_exported_offsets (abfd, info); |
1188 | ||
03a1c9a7 NC |
1189 | /* Ok, now for the filling in part. |
1190 | Scan alphabetically - ie the ordering in the exports[] table, | |
1191 | rather than by ordinal - the ordering in the exported_symbol[] | |
1192 | table. See dlltool.c and: | |
1193 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html | |
1579bae1 | 1194 | for more information. */ |
252b5132 | 1195 | hint = 0; |
03a1c9a7 | 1196 | for (s = 0; s < NE; s++) |
252b5132 | 1197 | { |
f5a95868 | 1198 | struct bfd_section *ssec = exported_symbol_sections[s]; |
a8d701fd DS |
1199 | if (pe_def_file->exports[s].ordinal != -1 && |
1200 | (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1201 | { |
45b1f63c | 1202 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1203 | |
a8d701fd DS |
1204 | if (pe_def_file->exports[s].flag_forward) |
1205 | { | |
1206 | bfd_put_32 (abfd, ERVA (enamestr), | |
1207 | eaddresses + 4 * (ord - min_ordinal)); | |
1208 | ||
1209 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1210 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1211 | } | |
1212 | else | |
1213 | { | |
6ca0987a | 1214 | bfd_vma srva = (exported_symbol_offsets[s] |
a8d701fd DS |
1215 | + ssec->output_section->vma |
1216 | + ssec->output_offset); | |
1217 | ||
1218 | bfd_put_32 (abfd, srva - image_base, | |
1219 | eaddresses + 4 * (ord - min_ordinal)); | |
1220 | } | |
775cabad | 1221 | |
252b5132 RH |
1222 | if (!pe_def_file->exports[s].flag_noname) |
1223 | { | |
1224 | char *ename = pe_def_file->exports[s].name; | |
7fcab871 KT |
1225 | if (pe_def_file->exports[s].its_name) |
1226 | ename = pe_def_file->exports[s].its_name; | |
03a1c9a7 | 1227 | |
2f9636ba AM |
1228 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1229 | enameptrs += 4; | |
252b5132 RH |
1230 | strcpy (enamestr, ename); |
1231 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1232 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1233 | eordinals += 2; | |
252b5132 RH |
1234 | pe_def_file->exports[s].hint = hint++; |
1235 | } | |
252b5132 RH |
1236 | } |
1237 | } | |
1238 | } | |
1239 | ||
b044cda1 | 1240 | |
198beae2 | 1241 | static struct bfd_section *current_sec; |
b044cda1 CW |
1242 | |
1243 | void | |
1579bae1 AM |
1244 | pe_walk_relocs_of_symbol (struct bfd_link_info *info, |
1245 | const char *name, | |
1246 | int (*cb) (arelent *, asection *)) | |
b044cda1 CW |
1247 | { |
1248 | bfd *b; | |
0d888aac | 1249 | asection *s; |
b044cda1 CW |
1250 | |
1251 | for (b = info->input_bfds; b; b = b->link_next) | |
1252 | { | |
775cabad | 1253 | asymbol **symbols; |
775cabad | 1254 | |
5c1d2f5f AM |
1255 | if (!bfd_generic_link_read_symbols (b)) |
1256 | { | |
1257 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1258 | return; | |
1259 | } | |
1260 | ||
1261 | symbols = bfd_get_outsymbols (b); | |
b044cda1 CW |
1262 | |
1263 | for (s = b->sections; s; s = s->next) | |
1264 | { | |
775cabad NC |
1265 | arelent **relocs; |
1266 | int relsize, nrelocs, i; | |
b044cda1 CW |
1267 | int flags = bfd_get_section_flags (b, s); |
1268 | ||
775cabad | 1269 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1270 | if (flags & SEC_LINK_ONCE |
1271 | && s->output_section == bfd_abs_section_ptr) | |
1272 | continue; | |
1273 | ||
0d888aac | 1274 | current_sec = s; |
b044cda1 | 1275 | |
b044cda1 | 1276 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1277 | relocs = xmalloc (relsize); |
b044cda1 CW |
1278 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1279 | ||
1280 | for (i = 0; i < nrelocs; i++) | |
1281 | { | |
fc0a2244 | 1282 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad NC |
1283 | |
1284 | if (!strcmp (name, sym->name)) | |
1285 | cb (relocs[i], s); | |
b044cda1 | 1286 | } |
775cabad | 1287 | |
b044cda1 | 1288 | free (relocs); |
775cabad | 1289 | |
b044cda1 CW |
1290 | /* Warning: the allocated symbols are remembered in BFD and reused |
1291 | later, so don't free them! */ | |
1292 | /* free (symbols); */ | |
1293 | } | |
1294 | } | |
1295 | } | |
1296 | ||
775cabad | 1297 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1298 | |
1299 | static void | |
1579bae1 | 1300 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1301 | { |
1302 | ||
86b1cc60 | 1303 | /* For .reloc stuff. */ |
c6c37250 | 1304 | reloc_data_type *reloc_data; |
252b5132 RH |
1305 | int total_relocs = 0; |
1306 | int i; | |
6ca0987a KT |
1307 | bfd_vma sec_page = (bfd_vma) -1; |
1308 | bfd_vma page_ptr, page_count; | |
252b5132 RH |
1309 | int bi; |
1310 | bfd *b; | |
198beae2 | 1311 | struct bfd_section *s; |
252b5132 RH |
1312 | |
1313 | total_relocs = 0; | |
1314 | for (b = info->input_bfds; b; b = b->link_next) | |
1315 | for (s = b->sections; s; s = s->next) | |
1316 | total_relocs += s->reloc_count; | |
1317 | ||
1579bae1 | 1318 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1319 | |
1320 | total_relocs = 0; | |
1321 | bi = 0; | |
1322 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
1323 | { | |
1324 | arelent **relocs; | |
91d6fa6a | 1325 | int relsize, nrelocs; |
252b5132 RH |
1326 | |
1327 | for (s = b->sections; s; s = s->next) | |
1328 | { | |
6ca0987a | 1329 | bfd_vma sec_vma = s->output_section->vma + s->output_offset; |
252b5132 | 1330 | asymbol **symbols; |
252b5132 | 1331 | |
86b1cc60 | 1332 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1333 | if (!(s->output_section->flags & SEC_LOAD)) |
1334 | continue; | |
1335 | ||
1336 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1337 | seen it happen - DJ */ |
252b5132 RH |
1338 | if (s->output_section == &bfd_abs_section) |
1339 | continue; | |
1340 | ||
1341 | if (s->output_section->vma == 0) | |
1342 | { | |
86b1cc60 | 1343 | /* Huh? Shouldn't happen, but punt if it does. */ |
252b5132 RH |
1344 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", |
1345 | s->output_section->name, s->output_section->index, | |
1346 | s->output_section->flags); | |
1347 | continue; | |
1348 | } | |
1349 | ||
5c1d2f5f AM |
1350 | if (!bfd_generic_link_read_symbols (b)) |
1351 | { | |
1352 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1353 | return; | |
1354 | } | |
252b5132 | 1355 | |
5c1d2f5f | 1356 | symbols = bfd_get_outsymbols (b); |
252b5132 | 1357 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1358 | relocs = xmalloc (relsize); |
252b5132 RH |
1359 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1360 | ||
1361 | for (i = 0; i < nrelocs; i++) | |
1362 | { | |
b044cda1 | 1363 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1364 | { |
fc0a2244 | 1365 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1366 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1367 | } |
252b5132 | 1368 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1369 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1370 | { |
fc0a2244 | 1371 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1372 | |
1b610c93 | 1373 | /* Don't create relocs for undefined weak symbols. */ |
49314f87 DS |
1374 | if (sym->flags == BSF_WEAK) |
1375 | { | |
1376 | struct bfd_link_hash_entry *blhe | |
9dda37c1 | 1377 | = bfd_wrapped_link_hash_lookup (abfd, info, sym->name, |
49314f87 | 1378 | FALSE, FALSE, FALSE); |
9dda37c1 DK |
1379 | if (blhe && blhe->type == bfd_link_hash_undefweak) |
1380 | { | |
1381 | /* Check aux sym and see if it is defined or not. */ | |
1382 | struct coff_link_hash_entry *h, *h2; | |
1383 | h = (struct coff_link_hash_entry *)blhe; | |
1384 | if (h->symbol_class != C_NT_WEAK || h->numaux != 1) | |
1385 | continue; | |
1386 | h2 = h->auxbfd->tdata.coff_obj_data->sym_hashes | |
1387 | [h->aux->x_sym.x_tagndx.l]; | |
1388 | /* We don't want a base reloc if the aux sym is not | |
1389 | found, undefined, or if it is the constant ABS | |
1390 | zero default value. (We broaden that slightly by | |
1391 | not testing the value, just the section; there's | |
1392 | no reason we'd want a reference to any absolute | |
1393 | address to get relocated during rebasing). */ | |
1394 | if (!h2 || h2->root.type == bfd_link_hash_undefined | |
1395 | || h2->root.u.def.section == &bfd_abs_section) | |
1396 | continue; | |
1397 | } | |
1398 | else if (!blhe || blhe->type != bfd_link_hash_defined) | |
1399 | continue; | |
49314f87 DS |
1400 | } |
1401 | ||
c6c37250 | 1402 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; |
5cc18311 | 1403 | |
344a211f | 1404 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1405 | |
344a211f NC |
1406 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1407 | relocs[i]->howto->rightshift) | |
252b5132 | 1408 | { |
99ad8390 NC |
1409 | #ifdef pe_use_x86_64 |
1410 | case BITS_AND_SHIFT (64, 0): | |
1411 | reloc_data[total_relocs].type = 10; | |
1412 | total_relocs++; | |
1413 | break; | |
1414 | #endif | |
344a211f | 1415 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1416 | reloc_data[total_relocs].type = 3; |
1417 | total_relocs++; | |
252b5132 | 1418 | break; |
344a211f NC |
1419 | case BITS_AND_SHIFT (16, 0): |
1420 | reloc_data[total_relocs].type = 2; | |
1421 | total_relocs++; | |
1422 | break; | |
1423 | case BITS_AND_SHIFT (16, 16): | |
1424 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1425 | /* FIXME: we can't know the symbol's right value |
1426 | yet, but we probably can safely assume that | |
1427 | CE will relocate us in 64k blocks, so leaving | |
1428 | it zero is safe. */ | |
344a211f NC |
1429 | reloc_data[total_relocs].extra = 0; |
1430 | total_relocs++; | |
1431 | break; | |
1432 | case BITS_AND_SHIFT (26, 2): | |
1433 | reloc_data[total_relocs].type = 5; | |
1434 | total_relocs++; | |
1435 | break; | |
fea39bcb | 1436 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1437 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1438 | Those ARM_xxx definitions should go in proper | |
1439 | header someday. */ | |
1440 | if (relocs[i]->howto->type == 0 | |
1441 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1442 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1443 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1444 | that has already been fully processed during a | |
1445 | previous link stage, so ignore it here. */ | |
1446 | break; | |
1447 | /* Fall through. */ | |
252b5132 RH |
1448 | default: |
1449 | /* xgettext:c-format */ | |
1450 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
1451 | relocs[i]->howto->bitsize); | |
1452 | break; | |
1453 | } | |
1454 | } | |
1455 | } | |
1456 | free (relocs); | |
86b1cc60 KH |
1457 | /* Warning: the allocated symbols are remembered in BFD and |
1458 | reused later, so don't free them! */ | |
252b5132 RH |
1459 | } |
1460 | } | |
1461 | ||
1462 | /* At this point, we have total_relocs relocation addresses in | |
1463 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1464 | We must now create the new sections. */ |
c6c37250 | 1465 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1466 | |
1467 | for (i = 0; i < total_relocs; i++) | |
1468 | { | |
6ca0987a | 1469 | bfd_vma this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1470 | |
252b5132 RH |
1471 | if (this_page != sec_page) |
1472 | { | |
775cabad | 1473 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1474 | reloc_sz += 8; |
1475 | sec_page = this_page; | |
1476 | } | |
5cc18311 | 1477 | |
252b5132 | 1478 | reloc_sz += 2; |
5cc18311 | 1479 | |
344a211f NC |
1480 | if (reloc_data[i].type == 4) |
1481 | reloc_sz += 2; | |
252b5132 | 1482 | } |
b7a26f91 | 1483 | |
775cabad | 1484 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 | 1485 | reloc_d = xmalloc (reloc_sz); |
6ca0987a | 1486 | sec_page = (bfd_vma) -1; |
252b5132 | 1487 | reloc_sz = 0; |
6ca0987a | 1488 | page_ptr = (bfd_vma) -1; |
252b5132 | 1489 | page_count = 0; |
775cabad | 1490 | |
252b5132 RH |
1491 | for (i = 0; i < total_relocs; i++) |
1492 | { | |
6ca0987a KT |
1493 | bfd_vma rva = reloc_data[i].vma - image_base; |
1494 | bfd_vma this_page = (rva & ~0xfff); | |
775cabad | 1495 | |
252b5132 RH |
1496 | if (this_page != sec_page) |
1497 | { | |
1498 | while (reloc_sz & 3) | |
1499 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1500 | |
6ca0987a | 1501 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1502 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1503 | |
252b5132 RH |
1504 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1505 | page_ptr = reloc_sz; | |
1506 | reloc_sz += 8; | |
1507 | sec_page = this_page; | |
1508 | page_count = 0; | |
1509 | } | |
775cabad | 1510 | |
d643799d | 1511 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1512 | reloc_d + reloc_sz); |
252b5132 | 1513 | reloc_sz += 2; |
775cabad | 1514 | |
c6c37250 DD |
1515 | if (reloc_data[i].type == 4) |
1516 | { | |
1517 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1518 | reloc_sz += 2; | |
1519 | } | |
775cabad | 1520 | |
252b5132 RH |
1521 | page_count++; |
1522 | } | |
775cabad | 1523 | |
252b5132 RH |
1524 | while (reloc_sz & 3) |
1525 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1526 | |
6ca0987a | 1527 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1528 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1529 | |
eea6121a | 1530 | while (reloc_sz < reloc_s->size) |
252b5132 RH |
1531 | reloc_d[reloc_sz++] = 0; |
1532 | } | |
1533 | ||
775cabad NC |
1534 | /* Given the exiting def_file structure, print out a .DEF file that |
1535 | corresponds to it. */ | |
252b5132 RH |
1536 | |
1537 | static void | |
1579bae1 | 1538 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1539 | { |
1540 | char *cp; | |
775cabad | 1541 | |
252b5132 RH |
1542 | for (cp = s; *cp; cp++) |
1543 | if (*cp == '\'' | |
1544 | || *cp == '"' | |
1545 | || *cp == '\\' | |
3882b010 | 1546 | || ISSPACE (*cp) |
252b5132 RH |
1547 | || *cp == ',' |
1548 | || *cp == ';') | |
1549 | needs_quotes = 1; | |
775cabad | 1550 | |
252b5132 RH |
1551 | if (needs_quotes) |
1552 | { | |
1553 | putc ('"', f); | |
775cabad | 1554 | |
252b5132 RH |
1555 | while (*s) |
1556 | { | |
1557 | if (*s == '"' || *s == '\\') | |
1558 | putc ('\\', f); | |
775cabad | 1559 | |
252b5132 RH |
1560 | putc (*s, f); |
1561 | s++; | |
1562 | } | |
775cabad | 1563 | |
252b5132 RH |
1564 | putc ('"', f); |
1565 | } | |
1566 | else | |
1567 | fputs (s, f); | |
1568 | } | |
1569 | ||
1570 | void | |
1579bae1 | 1571 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1572 | { |
1573 | int i; | |
1574 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1575 | |
252b5132 | 1576 | if (out == NULL) |
775cabad NC |
1577 | /* xgettext:c-format */ |
1578 | einfo (_("%s: Can't open output def file %s\n"), | |
1579 | program_name, pe_out_def_filename); | |
252b5132 RH |
1580 | |
1581 | if (pe_def_file) | |
1582 | { | |
1583 | if (pe_def_file->name) | |
1584 | { | |
1585 | if (pe_def_file->is_dll) | |
1586 | fprintf (out, "LIBRARY "); | |
1587 | else | |
1588 | fprintf (out, "NAME "); | |
775cabad | 1589 | |
252b5132 | 1590 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1591 | |
f13a99db | 1592 | if (pe_data (link_info.output_bfd)->pe_opthdr.ImageBase) |
0ead4f8d KT |
1593 | { |
1594 | fprintf (out, " BASE=0x"); | |
1595 | fprintf_vma (out, ((bfd_vma) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase)); | |
1596 | } | |
252b5132 RH |
1597 | fprintf (out, "\n"); |
1598 | } | |
1599 | ||
1600 | if (pe_def_file->description) | |
1601 | { | |
1602 | fprintf (out, "DESCRIPTION "); | |
1603 | quoteput (pe_def_file->description, out, 1); | |
1604 | fprintf (out, "\n"); | |
1605 | } | |
1606 | ||
1607 | if (pe_def_file->version_minor != -1) | |
1608 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1609 | pe_def_file->version_minor); | |
1610 | else if (pe_def_file->version_major != -1) | |
1611 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1612 | ||
1613 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1614 | fprintf (out, "\n"); | |
1615 | ||
1616 | if (pe_def_file->stack_commit != -1) | |
1617 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1618 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1619 | else if (pe_def_file->stack_reserve != -1) | |
1620 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1621 | |
252b5132 RH |
1622 | if (pe_def_file->heap_commit != -1) |
1623 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1624 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1625 | else if (pe_def_file->heap_reserve != -1) | |
1626 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1627 | ||
1628 | if (pe_def_file->num_section_defs > 0) | |
1629 | { | |
1630 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1631 | |
252b5132 RH |
1632 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1633 | { | |
1634 | fprintf (out, " "); | |
1635 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1636 | |
252b5132 RH |
1637 | if (pe_def_file->section_defs[i].class) |
1638 | { | |
1639 | fprintf (out, " CLASS "); | |
1640 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1641 | } | |
775cabad | 1642 | |
252b5132 RH |
1643 | if (pe_def_file->section_defs[i].flag_read) |
1644 | fprintf (out, " READ"); | |
775cabad | 1645 | |
252b5132 RH |
1646 | if (pe_def_file->section_defs[i].flag_write) |
1647 | fprintf (out, " WRITE"); | |
775cabad | 1648 | |
252b5132 RH |
1649 | if (pe_def_file->section_defs[i].flag_execute) |
1650 | fprintf (out, " EXECUTE"); | |
775cabad | 1651 | |
252b5132 RH |
1652 | if (pe_def_file->section_defs[i].flag_shared) |
1653 | fprintf (out, " SHARED"); | |
775cabad | 1654 | |
252b5132 RH |
1655 | fprintf (out, "\n"); |
1656 | } | |
1657 | } | |
1658 | ||
1659 | if (pe_def_file->num_exports > 0) | |
1660 | { | |
b044cda1 | 1661 | fprintf (out, "EXPORTS\n"); |
775cabad | 1662 | |
252b5132 RH |
1663 | for (i = 0; i < pe_def_file->num_exports; i++) |
1664 | { | |
1665 | def_file_export *e = pe_def_file->exports + i; | |
1666 | fprintf (out, " "); | |
1667 | quoteput (e->name, out, 0); | |
775cabad | 1668 | |
252b5132 RH |
1669 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1670 | { | |
1671 | fprintf (out, " = "); | |
1672 | quoteput (e->internal_name, out, 0); | |
1673 | } | |
775cabad | 1674 | |
252b5132 RH |
1675 | if (e->ordinal != -1) |
1676 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1677 | |
252b5132 RH |
1678 | if (e->flag_private) |
1679 | fprintf (out, " PRIVATE"); | |
775cabad | 1680 | |
252b5132 RH |
1681 | if (e->flag_constant) |
1682 | fprintf (out, " CONSTANT"); | |
775cabad | 1683 | |
252b5132 RH |
1684 | if (e->flag_noname) |
1685 | fprintf (out, " NONAME"); | |
775cabad | 1686 | |
252b5132 RH |
1687 | if (e->flag_data) |
1688 | fprintf (out, " DATA"); | |
1689 | ||
1690 | fprintf (out, "\n"); | |
1691 | } | |
1692 | } | |
1693 | ||
1694 | if (pe_def_file->num_imports > 0) | |
1695 | { | |
1696 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1697 | |
252b5132 RH |
1698 | for (i = 0; i < pe_def_file->num_imports; i++) |
1699 | { | |
1700 | def_file_import *im = pe_def_file->imports + i; | |
1701 | fprintf (out, " "); | |
775cabad | 1702 | |
252b5132 RH |
1703 | if (im->internal_name |
1704 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1705 | { | |
1706 | quoteput (im->internal_name, out, 0); | |
1707 | fprintf (out, " = "); | |
1708 | } | |
775cabad | 1709 | |
252b5132 RH |
1710 | quoteput (im->module->name, out, 0); |
1711 | fprintf (out, "."); | |
775cabad | 1712 | |
252b5132 RH |
1713 | if (im->name) |
1714 | quoteput (im->name, out, 0); | |
1715 | else | |
1716 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1717 | |
7fcab871 KT |
1718 | if (im->its_name) |
1719 | { | |
1720 | fprintf (out, " == "); | |
1721 | quoteput (im->its_name, out, 0); | |
1722 | } | |
1723 | ||
252b5132 RH |
1724 | fprintf (out, "\n"); |
1725 | } | |
1726 | } | |
1727 | } | |
1728 | else | |
1729 | fprintf (out, _("; no contents available\n")); | |
1730 | ||
1731 | if (fclose (out) == EOF) | |
775cabad NC |
1732 | /* xgettext:c-format */ |
1733 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
252b5132 RH |
1734 | } |
1735 | ||
775cabad | 1736 | /* Generate the import library. */ |
252b5132 RH |
1737 | |
1738 | static asymbol **symtab; | |
1739 | static int symptr; | |
1740 | static int tmp_seq; | |
9382254d | 1741 | static int tmp_seq2; |
252b5132 RH |
1742 | static const char *dll_filename; |
1743 | static char *dll_symname; | |
1744 | ||
1745 | #define UNDSEC (asection *) &bfd_und_section | |
1746 | ||
1747 | static asection * | |
1579bae1 | 1748 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1749 | { |
1750 | asection *sec; | |
1751 | asymbol *sym; | |
1752 | ||
1753 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1754 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1755 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1756 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1757 | sec->output_section = sec; |
1758 | ||
1759 | sym = bfd_make_empty_symbol (abfd); | |
1760 | symtab[symptr++] = sym; | |
1761 | sym->name = sec->name; | |
1762 | sym->section = sec; | |
1763 | sym->flags = BSF_LOCAL; | |
1764 | sym->value = 0; | |
1765 | ||
1766 | return sec; | |
1767 | } | |
1768 | ||
1769 | static void | |
1579bae1 AM |
1770 | quick_symbol (bfd *abfd, |
1771 | const char *n1, | |
1772 | const char *n2, | |
1773 | const char *n3, | |
1774 | asection *sec, | |
1775 | int flags, | |
1776 | int addr) | |
252b5132 RH |
1777 | { |
1778 | asymbol *sym; | |
1579bae1 | 1779 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1780 | |
252b5132 RH |
1781 | strcpy (name, n1); |
1782 | strcat (name, n2); | |
1783 | strcat (name, n3); | |
1784 | sym = bfd_make_empty_symbol (abfd); | |
1785 | sym->name = name; | |
1786 | sym->section = sec; | |
1787 | sym->flags = flags; | |
1788 | sym->value = addr; | |
1789 | symtab[symptr++] = sym; | |
1790 | } | |
1791 | ||
1792 | static arelent *reltab = 0; | |
1793 | static int relcount = 0, relsize = 0; | |
1794 | ||
1795 | static void | |
0ead4f8d | 1796 | quick_reloc (bfd *abfd, bfd_size_type address, int which_howto, int symidx) |
252b5132 | 1797 | { |
1579bae1 | 1798 | if (relcount >= relsize - 1) |
252b5132 RH |
1799 | { |
1800 | relsize += 10; | |
1801 | if (reltab) | |
1579bae1 | 1802 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 1803 | else |
1579bae1 | 1804 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
1805 | } |
1806 | reltab[relcount].address = address; | |
1807 | reltab[relcount].addend = 0; | |
1808 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1809 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1810 | relcount++; | |
1811 | } | |
1812 | ||
1813 | static void | |
1814 | save_relocs (asection *sec) | |
1815 | { | |
1816 | int i; | |
775cabad | 1817 | |
252b5132 RH |
1818 | sec->relocation = reltab; |
1819 | sec->reloc_count = relcount; | |
1579bae1 | 1820 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 1821 | for (i = 0; i < relcount; i++) |
252b5132 RH |
1822 | sec->orelocation[i] = sec->relocation + i; |
1823 | sec->orelocation[relcount] = 0; | |
1824 | sec->flags |= SEC_RELOC; | |
1825 | reltab = 0; | |
1826 | relcount = relsize = 0; | |
1827 | } | |
1828 | ||
775cabad NC |
1829 | /* .section .idata$2 |
1830 | .global __head_my_dll | |
1831 | __head_my_dll: | |
1832 | .rva hname | |
1833 | .long 0 | |
1834 | .long 0 | |
1835 | .rva __my_dll_iname | |
1836 | .rva fthunk | |
b7a26f91 | 1837 | |
775cabad NC |
1838 | .section .idata$5 |
1839 | .long 0 | |
1840 | fthunk: | |
b7a26f91 | 1841 | |
775cabad NC |
1842 | .section .idata$4 |
1843 | .long 0 | |
1844 | hname: */ | |
252b5132 RH |
1845 | |
1846 | static bfd * | |
1579bae1 | 1847 | make_head (bfd *parent) |
252b5132 RH |
1848 | { |
1849 | asection *id2, *id5, *id4; | |
1850 | unsigned char *d2, *d5, *d4; | |
1851 | char *oname; | |
1852 | bfd *abfd; | |
1853 | ||
1579bae1 | 1854 | oname = xmalloc (20); |
252b5132 RH |
1855 | sprintf (oname, "d%06d.o", tmp_seq); |
1856 | tmp_seq++; | |
1857 | ||
1858 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1859 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1860 | bfd_make_writable (abfd); |
1861 | ||
1862 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1863 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1864 | |
1865 | symptr = 0; | |
1579bae1 | 1866 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
1867 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
1868 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1869 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
1870 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1871 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
1872 | |
1873 | /* OK, pay attention here. I got confused myself looking back at | |
1874 | it. We create a four-byte section to mark the beginning of the | |
1875 | list, and we include an offset of 4 in the section, so that the | |
1876 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 1877 | the start of the list of sections from other objects. */ |
252b5132 RH |
1878 | |
1879 | bfd_set_section_size (abfd, id2, 20); | |
1579bae1 | 1880 | d2 = xmalloc (20); |
252b5132 RH |
1881 | id2->contents = d2; |
1882 | memset (d2, 0, 20); | |
ce11ba6c KT |
1883 | if (pe_use_nul_prefixed_import_tables) |
1884 | d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */ | |
252b5132 RH |
1885 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
1886 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1887 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1888 | save_relocs (id2); | |
1889 | ||
ce11ba6c KT |
1890 | if (pe_use_nul_prefixed_import_tables) |
1891 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); | |
1892 | else | |
1893 | bfd_set_section_size (abfd, id5, 0); | |
99ad8390 | 1894 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 1895 | id5->contents = d5; |
99ad8390 | 1896 | memset (d5, 0, PE_IDATA5_SIZE); |
ce11ba6c KT |
1897 | if (pe_use_nul_prefixed_import_tables) |
1898 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); | |
1899 | else | |
1900 | bfd_set_section_size (abfd, id4, 0); | |
99ad8390 | 1901 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 1902 | id4->contents = d4; |
99ad8390 | 1903 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 RH |
1904 | |
1905 | bfd_set_symtab (abfd, symtab, symptr); | |
1906 | ||
1907 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
ce11ba6c KT |
1908 | if (pe_use_nul_prefixed_import_tables) |
1909 | { | |
1910 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
1911 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
1912 | } | |
1913 | else | |
1914 | { | |
1915 | bfd_set_section_contents (abfd, id5, d5, 0, 0); | |
1916 | bfd_set_section_contents (abfd, id4, d4, 0, 0); | |
1917 | } | |
5cc18311 | 1918 | |
252b5132 RH |
1919 | bfd_make_readable (abfd); |
1920 | return abfd; | |
1921 | } | |
1922 | ||
775cabad NC |
1923 | /* .section .idata$4 |
1924 | .long 0 | |
99ad8390 | 1925 | [.long 0] for PE+ |
775cabad NC |
1926 | .section .idata$5 |
1927 | .long 0 | |
99ad8390 | 1928 | [.long 0] for PE+ |
775cabad NC |
1929 | .section idata$7 |
1930 | .global __my_dll_iname | |
1931 | __my_dll_iname: | |
1932 | .asciz "my.dll" */ | |
252b5132 RH |
1933 | |
1934 | static bfd * | |
1579bae1 | 1935 | make_tail (bfd *parent) |
252b5132 RH |
1936 | { |
1937 | asection *id4, *id5, *id7; | |
1938 | unsigned char *d4, *d5, *d7; | |
1939 | int len; | |
1940 | char *oname; | |
1941 | bfd *abfd; | |
1942 | ||
1579bae1 | 1943 | oname = xmalloc (20); |
252b5132 RH |
1944 | sprintf (oname, "d%06d.o", tmp_seq); |
1945 | tmp_seq++; | |
1946 | ||
1947 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1948 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1949 | bfd_make_writable (abfd); |
1950 | ||
1951 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1952 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1953 | |
1954 | symptr = 0; | |
1579bae1 | 1955 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
1956 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
1957 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1958 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 1959 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 | 1960 | |
99ad8390 NC |
1961 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
1962 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 1963 | id4->contents = d4; |
99ad8390 | 1964 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 | 1965 | |
99ad8390 NC |
1966 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
1967 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 1968 | id5->contents = d5; |
99ad8390 | 1969 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 1970 | |
d643799d | 1971 | len = strlen (dll_filename) + 1; |
252b5132 | 1972 | if (len & 1) |
d643799d | 1973 | len++; |
252b5132 | 1974 | bfd_set_section_size (abfd, id7, len); |
1579bae1 | 1975 | d7 = xmalloc (len); |
252b5132 | 1976 | id7->contents = d7; |
47639182 | 1977 | strcpy ((char *) d7, dll_filename); |
e916811a CF |
1978 | /* If len was odd, the above |
1979 | strcpy leaves behind an undefined byte. That is harmless, | |
1980 | but we set it to 0 just so the binary dumps are pretty. */ | |
1981 | d7[len - 1] = 0; | |
252b5132 RH |
1982 | |
1983 | bfd_set_symtab (abfd, symtab, symptr); | |
1984 | ||
99ad8390 NC |
1985 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
1986 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
252b5132 RH |
1987 | bfd_set_section_contents (abfd, id7, d7, 0, len); |
1988 | ||
1989 | bfd_make_readable (abfd); | |
1990 | return abfd; | |
1991 | } | |
1992 | ||
775cabad NC |
1993 | /* .text |
1994 | .global _function | |
1995 | .global ___imp_function | |
1996 | .global __imp__function | |
1997 | _function: | |
1998 | jmp *__imp__function: | |
b7a26f91 | 1999 | |
775cabad NC |
2000 | .section idata$7 |
2001 | .long __head_my_dll | |
b7a26f91 | 2002 | |
775cabad NC |
2003 | .section .idata$5 |
2004 | ___imp_function: | |
2005 | __imp__function: | |
2006 | iat? | |
2007 | .section .idata$4 | |
2008 | iat? | |
2009 | .section .idata$6 | |
2010 | ID<ordinal>: | |
2011 | .short <hint> | |
2012 | .asciz "function" xlate? (add underscore, kill at) */ | |
2013 | ||
e916811a | 2014 | static const unsigned char jmp_ix86_bytes[] = |
775cabad | 2015 | { |
252b5132 RH |
2016 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
2017 | }; | |
2018 | ||
775cabad NC |
2019 | /* _function: |
2020 | mov.l ip+8,r0 | |
2021 | mov.l @r0,r0 | |
2022 | jmp @r0 | |
2023 | nop | |
2024 | .dw __imp_function */ | |
344a211f | 2025 | |
e916811a | 2026 | static const unsigned char jmp_sh_bytes[] = |
775cabad | 2027 | { |
344a211f NC |
2028 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
2029 | }; | |
2030 | ||
775cabad NC |
2031 | /* _function: |
2032 | lui $t0,<high:__imp_function> | |
2033 | lw $t0,<low:__imp_function> | |
2034 | jr $t0 | |
2035 | nop */ | |
344a211f | 2036 | |
e916811a | 2037 | static const unsigned char jmp_mips_bytes[] = |
775cabad | 2038 | { |
344a211f NC |
2039 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
2040 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
2041 | }; | |
252b5132 | 2042 | |
e916811a | 2043 | static const unsigned char jmp_arm_bytes[] = |
53baae48 NC |
2044 | { |
2045 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
2046 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
2047 | 0, 0, 0, 0 | |
2048 | }; | |
2049 | ||
2050 | ||
252b5132 | 2051 | static bfd * |
54727719 | 2052 | make_one (def_file_export *exp, bfd *parent, bfd_boolean include_jmp_stub) |
252b5132 RH |
2053 | { |
2054 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 2055 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
2056 | int len; |
2057 | char *oname; | |
2058 | bfd *abfd; | |
e916811a | 2059 | const unsigned char *jmp_bytes = NULL; |
f0c87f88 | 2060 | int jmp_byte_count = 0; |
c6c37250 | 2061 | |
54727719 NC |
2062 | /* Include the jump stub section only if it is needed. A jump |
2063 | stub is needed if the symbol being imported <sym> is a function | |
2064 | symbol and there is at least one undefined reference to that | |
2065 | symbol. In other words, if all the import references to <sym> are | |
2066 | explicitly through _declspec(dllimport) then the jump stub is not | |
2067 | needed. */ | |
2068 | if (include_jmp_stub) | |
c6c37250 | 2069 | { |
54727719 NC |
2070 | switch (pe_details->pe_arch) |
2071 | { | |
2072 | case PE_ARCH_i386: | |
2073 | jmp_bytes = jmp_ix86_bytes; | |
2074 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
2075 | break; | |
2076 | case PE_ARCH_sh: | |
2077 | jmp_bytes = jmp_sh_bytes; | |
2078 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
2079 | break; | |
2080 | case PE_ARCH_mips: | |
2081 | jmp_bytes = jmp_mips_bytes; | |
2082 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
2083 | break; | |
2084 | case PE_ARCH_arm: | |
2085 | case PE_ARCH_arm_epoc: | |
2086 | case PE_ARCH_arm_wince: | |
2087 | jmp_bytes = jmp_arm_bytes; | |
2088 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
2089 | break; | |
2090 | default: | |
2091 | abort (); | |
2092 | } | |
c6c37250 | 2093 | } |
252b5132 | 2094 | |
1579bae1 | 2095 | oname = xmalloc (20); |
252b5132 RH |
2096 | sprintf (oname, "d%06d.o", tmp_seq); |
2097 | tmp_seq++; | |
2098 | ||
2099 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2100 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2101 | bfd_make_writable (abfd); |
2102 | ||
2103 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2104 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2105 | |
2106 | symptr = 0; | |
17299ac7 NC |
2107 | symtab = xmalloc (12 * sizeof (asymbol *)); |
2108 | ||
2109 | tx = quick_section (abfd, ".text", SEC_CODE | SEC_HAS_CONTENTS | SEC_READONLY, 2); | |
252b5132 RH |
2110 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); |
2111 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2112 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
2113 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 2114 | |
c9e38879 NC |
2115 | if (*exp->internal_name == '@') |
2116 | { | |
1579bae1 AM |
2117 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2118 | BSF_GLOBAL, 0); | |
54727719 | 2119 | if (include_jmp_stub) |
4b7f0676 | 2120 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); |
00479ba8 | 2121 | quick_symbol (abfd, "__imp_", exp->internal_name, "", id5, |
1579bae1 | 2122 | BSF_GLOBAL, 0); |
c9e38879 NC |
2123 | /* Fastcall applies only to functions, |
2124 | so no need for auto-import symbol. */ | |
2125 | } | |
2126 | else | |
2127 | { | |
4b7f0676 NC |
2128 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2129 | BSF_GLOBAL, 0); | |
54727719 | 2130 | if (include_jmp_stub) |
1579bae1 AM |
2131 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
2132 | BSF_GLOBAL, 0); | |
00479ba8 | 2133 | quick_symbol (abfd, "__imp_", U (""), exp->internal_name, id5, |
1579bae1 | 2134 | BSF_GLOBAL, 0); |
c9e38879 | 2135 | /* Symbol to reference ord/name of imported |
1579bae1 | 2136 | data symbol, used to implement auto-import. */ |
c9e38879 | 2137 | if (exp->flag_data) |
17f73277 | 2138 | quick_symbol (abfd, "__nm_", U (""), exp->internal_name, id6, |
1579bae1 | 2139 | BSF_GLOBAL,0); |
c9e38879 | 2140 | } |
870df5dc | 2141 | if (pe_dll_compat_implib) |
17f73277 | 2142 | quick_symbol (abfd, "___imp_", exp->internal_name, "", id5, |
1579bae1 | 2143 | BSF_GLOBAL, 0); |
252b5132 | 2144 | |
54727719 | 2145 | if (include_jmp_stub) |
775cabad NC |
2146 | { |
2147 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1579bae1 | 2148 | td = xmalloc (jmp_byte_count); |
775cabad NC |
2149 | tx->contents = td; |
2150 | memcpy (td, jmp_bytes, jmp_byte_count); | |
2151 | ||
2152 | switch (pe_details->pe_arch) | |
2153 | { | |
2154 | case PE_ARCH_i386: | |
591a748a NC |
2155 | #ifdef pe_use_x86_64 |
2156 | quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2); | |
2157 | #else | |
17299ac7 NC |
2158 | /* Mark this object as SAFESEH compatible. */ |
2159 | quick_symbol (abfd, "", "@feat.00", "", bfd_abs_section_ptr, | |
2160 | BSF_LOCAL, 1); | |
591a748a NC |
2161 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); |
2162 | #endif | |
775cabad NC |
2163 | break; |
2164 | case PE_ARCH_sh: | |
2165 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
2166 | break; | |
2167 | case PE_ARCH_mips: | |
2168 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
2169 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
2170 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
2171 | break; | |
53baae48 | 2172 | case PE_ARCH_arm: |
7148cc28 NC |
2173 | case PE_ARCH_arm_epoc: |
2174 | case PE_ARCH_arm_wince: | |
53baae48 NC |
2175 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
2176 | break; | |
775cabad NC |
2177 | default: |
2178 | abort (); | |
2179 | } | |
2180 | save_relocs (tx); | |
2181 | } | |
54727719 NC |
2182 | else |
2183 | bfd_set_section_size (abfd, tx, 0); | |
252b5132 RH |
2184 | |
2185 | bfd_set_section_size (abfd, id7, 4); | |
1579bae1 | 2186 | d7 = xmalloc (4); |
252b5132 RH |
2187 | id7->contents = d7; |
2188 | memset (d7, 0, 4); | |
4b7f0676 | 2189 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
2190 | save_relocs (id7); |
2191 | ||
99ad8390 NC |
2192 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
2193 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 2194 | id5->contents = d5; |
99ad8390 | 2195 | memset (d5, 0, PE_IDATA5_SIZE); |
775cabad | 2196 | |
252b5132 RH |
2197 | if (exp->flag_noname) |
2198 | { | |
2199 | d5[0] = exp->ordinal; | |
2200 | d5[1] = exp->ordinal >> 8; | |
99ad8390 | 2201 | d5[PE_IDATA5_SIZE - 1] = 0x80; |
252b5132 RH |
2202 | } |
2203 | else | |
2204 | { | |
2205 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2206 | save_relocs (id5); | |
2207 | } | |
2208 | ||
99ad8390 NC |
2209 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2210 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 2211 | id4->contents = d4; |
99ad8390 | 2212 | memset (d4, 0, PE_IDATA4_SIZE); |
775cabad | 2213 | |
252b5132 RH |
2214 | if (exp->flag_noname) |
2215 | { | |
c2a94a7a DD |
2216 | d4[0] = exp->ordinal; |
2217 | d4[1] = exp->ordinal >> 8; | |
99ad8390 | 2218 | d4[PE_IDATA4_SIZE - 1] = 0x80; |
252b5132 RH |
2219 | } |
2220 | else | |
2221 | { | |
2222 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2223 | save_relocs (id4); | |
2224 | } | |
2225 | ||
2226 | if (exp->flag_noname) | |
2227 | { | |
2228 | len = 0; | |
2229 | bfd_set_section_size (abfd, id6, 0); | |
2230 | } | |
2231 | else | |
2232 | { | |
e916811a | 2233 | /* { short, asciz } */ |
7fcab871 KT |
2234 | if (exp->its_name) |
2235 | len = 2 + strlen (exp->its_name) + 1; | |
2236 | else | |
2237 | len = 2 + strlen (exp->name) + 1; | |
252b5132 RH |
2238 | if (len & 1) |
2239 | len++; | |
2240 | bfd_set_section_size (abfd, id6, len); | |
1579bae1 | 2241 | d6 = xmalloc (len); |
252b5132 RH |
2242 | id6->contents = d6; |
2243 | memset (d6, 0, len); | |
2244 | d6[0] = exp->hint & 0xff; | |
2245 | d6[1] = exp->hint >> 8; | |
7fcab871 KT |
2246 | if (exp->its_name) |
2247 | strcpy ((char*) d6 + 2, exp->its_name); | |
2248 | else | |
2249 | strcpy ((char *) d6 + 2, exp->name); | |
252b5132 RH |
2250 | } |
2251 | ||
2252 | bfd_set_symtab (abfd, symtab, symptr); | |
2253 | ||
54727719 NC |
2254 | if (include_jmp_stub) |
2255 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); | |
252b5132 | 2256 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
99ad8390 NC |
2257 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
2258 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
252b5132 RH |
2259 | if (!exp->flag_noname) |
2260 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
2261 | ||
2262 | bfd_make_readable (abfd); | |
2263 | return abfd; | |
2264 | } | |
2265 | ||
9382254d KT |
2266 | static bfd * |
2267 | make_singleton_name_imp (const char *import, bfd *parent) | |
2268 | { | |
2269 | /* Name thunks go to idata$4. */ | |
2270 | asection *id5; | |
2271 | unsigned char *d5; | |
2272 | char *oname; | |
2273 | bfd *abfd; | |
2274 | ||
2275 | oname = xmalloc (20); | |
2276 | sprintf (oname, "nmimp%06d.o", tmp_seq2); | |
2277 | tmp_seq2++; | |
2278 | ||
2279 | abfd = bfd_create (oname, parent); | |
2280 | bfd_find_target (pe_details->object_target, abfd); | |
2281 | bfd_make_writable (abfd); | |
2282 | ||
2283 | bfd_set_format (abfd, bfd_object); | |
2284 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2285 | ||
2286 | symptr = 0; | |
2287 | symtab = xmalloc (3 * sizeof (asymbol *)); | |
2288 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
17f73277 | 2289 | quick_symbol (abfd, "__imp_", import, "", id5, BSF_GLOBAL, 0); |
9382254d KT |
2290 | |
2291 | /* We need space for the real thunk and for the null terminator. */ | |
2292 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE * 2); | |
2293 | d5 = xmalloc (PE_IDATA5_SIZE * 2); | |
2294 | id5->contents = d5; | |
2295 | memset (d5, 0, PE_IDATA5_SIZE * 2); | |
2296 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
2297 | save_relocs (id5); | |
2298 | ||
2299 | bfd_set_symtab (abfd, symtab, symptr); | |
2300 | ||
2301 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA4_SIZE * 2); | |
2302 | ||
2303 | bfd_make_readable (abfd); | |
2304 | return abfd; | |
2305 | } | |
2306 | ||
b044cda1 | 2307 | static bfd * |
1579bae1 | 2308 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2309 | { |
775cabad | 2310 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2311 | asection *id4; |
2312 | unsigned char *d4; | |
2313 | char *oname; | |
2314 | bfd *abfd; | |
2315 | ||
1579bae1 | 2316 | oname = xmalloc (20); |
b044cda1 CW |
2317 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2318 | tmp_seq++; | |
2319 | ||
2320 | abfd = bfd_create (oname, parent); | |
2321 | bfd_find_target (pe_details->object_target, abfd); | |
2322 | bfd_make_writable (abfd); | |
2323 | ||
2324 | bfd_set_format (abfd, bfd_object); | |
2325 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2326 | ||
2327 | symptr = 0; | |
1579bae1 | 2328 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 | 2329 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
17f73277 KT |
2330 | quick_symbol (abfd, "__nm_thnk_", import, "", id4, BSF_GLOBAL, 0); |
2331 | quick_symbol (abfd, "__nm_", import, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2332 | |
4e986257 CF |
2333 | /* We need space for the real thunk and for the null terminator. */ |
2334 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE * 2); | |
2335 | d4 = xmalloc (PE_IDATA4_SIZE * 2); | |
b044cda1 | 2336 | id4->contents = d4; |
4e986257 | 2337 | memset (d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2338 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2339 | save_relocs (id4); | |
2340 | ||
2341 | bfd_set_symtab (abfd, symtab, symptr); | |
2342 | ||
4e986257 | 2343 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2344 | |
2345 | bfd_make_readable (abfd); | |
2346 | return abfd; | |
2347 | } | |
2348 | ||
2349 | static char * | |
1579bae1 | 2350 | make_import_fixup_mark (arelent *rel) |
b044cda1 | 2351 | { |
775cabad | 2352 | /* We convert reloc to symbol, for later reference. */ |
b044cda1 CW |
2353 | static int counter; |
2354 | static char *fixup_name = NULL; | |
db09f25b | 2355 | static size_t buffer_len = 0; |
b7a26f91 | 2356 | |
fc0a2244 | 2357 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b7a26f91 | 2358 | |
b044cda1 | 2359 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2360 | struct bfd_link_hash_entry *bh; |
b044cda1 CW |
2361 | |
2362 | if (!fixup_name) | |
2363 | { | |
1579bae1 | 2364 | fixup_name = xmalloc (384); |
b044cda1 CW |
2365 | buffer_len = 384; |
2366 | } | |
2367 | ||
2368 | if (strlen (sym->name) + 25 > buffer_len) | |
b7a26f91 | 2369 | /* Assume 25 chars for "__fu" + counter + "_". If counter is |
b044cda1 | 2370 | bigger than 20 digits long, we've got worse problems than |
775cabad | 2371 | overflowing this buffer... */ |
b044cda1 CW |
2372 | { |
2373 | free (fixup_name); | |
a35bc64f NC |
2374 | /* New buffer size is length of symbol, plus 25, but |
2375 | then rounded up to the nearest multiple of 128. */ | |
b044cda1 | 2376 | buffer_len = ((strlen (sym->name) + 25) + 127) & ~127; |
1579bae1 | 2377 | fixup_name = xmalloc (buffer_len); |
b044cda1 | 2378 | } |
b7a26f91 | 2379 | |
b044cda1 CW |
2380 | sprintf (fixup_name, "__fu%d_%s", counter++, sym->name); |
2381 | ||
fe213ce2 | 2382 | bh = NULL; |
b7a26f91 | 2383 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2384 | current_sec, /* sym->section, */ |
b34976b6 | 2385 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 | 2386 | |
b044cda1 CW |
2387 | return fixup_name; |
2388 | } | |
2389 | ||
53baae48 | 2390 | /* .section .idata$2 |
775cabad NC |
2391 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2392 | .long 0 | |
2393 | .long 0 | |
2394 | .rva __my_dll_iname (name of dll) | |
2395 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2396 | |
2397 | static bfd * | |
1579bae1 AM |
2398 | make_import_fixup_entry (const char *name, |
2399 | const char *fixup_name, | |
91d6fa6a | 2400 | const char *symname, |
1579bae1 | 2401 | bfd *parent) |
b044cda1 | 2402 | { |
53baae48 NC |
2403 | asection *id2; |
2404 | unsigned char *d2; | |
b044cda1 CW |
2405 | char *oname; |
2406 | bfd *abfd; | |
2407 | ||
1579bae1 | 2408 | oname = xmalloc (20); |
b044cda1 CW |
2409 | sprintf (oname, "fu%06d.o", tmp_seq); |
2410 | tmp_seq++; | |
2411 | ||
2412 | abfd = bfd_create (oname, parent); | |
2413 | bfd_find_target (pe_details->object_target, abfd); | |
2414 | bfd_make_writable (abfd); | |
2415 | ||
2416 | bfd_set_format (abfd, bfd_object); | |
2417 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2418 | ||
2419 | symptr = 0; | |
1579bae1 | 2420 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2421 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2422 | |
17f73277 | 2423 | quick_symbol (abfd, "__nm_thnk_", name, "", UNDSEC, BSF_GLOBAL, 0); |
91d6fa6a | 2424 | quick_symbol (abfd, U (""), symname, "_iname", UNDSEC, BSF_GLOBAL, 0); |
1b610c93 | 2425 | /* For relocator v2 we have to use the .idata$5 element and not |
9382254d KT |
2426 | fixup_name. */ |
2427 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
17f73277 | 2428 | quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0); |
9382254d KT |
2429 | else |
2430 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2431 | |
53baae48 NC |
2432 | bfd_set_section_size (abfd, id2, 20); |
2433 | d2 = xmalloc (20); | |
2434 | id2->contents = d2; | |
2435 | memset (d2, 0, 20); | |
b044cda1 CW |
2436 | |
2437 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2438 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2439 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2440 | save_relocs (id2); |
b044cda1 CW |
2441 | |
2442 | bfd_set_symtab (abfd, symtab, symptr); | |
2443 | ||
53baae48 | 2444 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2445 | |
2446 | bfd_make_readable (abfd); | |
2447 | return abfd; | |
2448 | } | |
2449 | ||
2fa9fc65 NC |
2450 | /* .section .rdata_runtime_pseudo_reloc |
2451 | .long addend | |
2452 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2453 | ||
2454 | static bfd * | |
1579bae1 AM |
2455 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2456 | const char *fixup_name, | |
6cb442d3 KT |
2457 | bfd_vma addend ATTRIBUTE_UNUSED, |
2458 | bfd_vma bitsize, | |
1579bae1 | 2459 | bfd *parent) |
2fa9fc65 NC |
2460 | { |
2461 | asection *rt_rel; | |
2462 | unsigned char *rt_rel_d; | |
2463 | char *oname; | |
2464 | bfd *abfd; | |
1579bae1 | 2465 | oname = xmalloc (20); |
2fa9fc65 NC |
2466 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2467 | tmp_seq++; | |
2468 | ||
2469 | abfd = bfd_create (oname, parent); | |
2470 | bfd_find_target (pe_details->object_target, abfd); | |
2471 | bfd_make_writable (abfd); | |
2472 | ||
2473 | bfd_set_format (abfd, bfd_object); | |
2474 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2475 | ||
2476 | symptr = 0; | |
acac4c69 KT |
2477 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2478 | { | |
2479 | symtab = xmalloc ((runtime_pseudp_reloc_v2_init ? 3 : 6) * sizeof (asymbol *)); | |
2480 | } | |
2481 | else | |
2482 | { | |
2483 | symtab = xmalloc (2 * sizeof (asymbol *)); | |
2484 | } | |
1579bae1 AM |
2485 | rt_rel = quick_section (abfd, ".rdata_runtime_pseudo_reloc", |
2486 | SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2487 | |
2488 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2489 | ||
6cb442d3 KT |
2490 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2491 | { | |
2492 | size_t size = 12; | |
2493 | if (! runtime_pseudp_reloc_v2_init) | |
2494 | { | |
2495 | size += 12; | |
2496 | runtime_pseudp_reloc_v2_init = 1; | |
2497 | } | |
17f73277 | 2498 | quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0); |
6cb442d3 KT |
2499 | |
2500 | bfd_set_section_size (abfd, rt_rel, size); | |
2501 | rt_rel_d = xmalloc (size); | |
2502 | rt_rel->contents = rt_rel_d; | |
2503 | memset (rt_rel_d, 0, size); | |
2504 | quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1); | |
2505 | quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2); | |
2506 | bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4)); | |
2507 | if (size != 12) | |
2508 | bfd_put_32 (abfd, 1, rt_rel_d + 8); | |
2509 | save_relocs (rt_rel); | |
2510 | ||
2511 | bfd_set_symtab (abfd, symtab, symptr); | |
2512 | ||
2513 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, size); | |
2514 | } | |
2515 | else | |
2516 | { | |
2517 | bfd_set_section_size (abfd, rt_rel, 8); | |
2518 | rt_rel_d = xmalloc (8); | |
2519 | rt_rel->contents = rt_rel_d; | |
2520 | memset (rt_rel_d, 0, 8); | |
2fa9fc65 | 2521 | |
6cb442d3 KT |
2522 | bfd_put_32 (abfd, addend, rt_rel_d); |
2523 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2fa9fc65 | 2524 | |
6cb442d3 | 2525 | save_relocs (rt_rel); |
2fa9fc65 | 2526 | |
6cb442d3 | 2527 | bfd_set_symtab (abfd, symtab, symptr); |
2fa9fc65 | 2528 | |
6cb442d3 KT |
2529 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); |
2530 | } | |
2fa9fc65 NC |
2531 | bfd_make_readable (abfd); |
2532 | return abfd; | |
2533 | } | |
2534 | ||
2535 | /* .section .rdata | |
a35bc64f | 2536 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2537 | |
2538 | static bfd * | |
1579bae1 | 2539 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2540 | { |
2541 | asection *extern_rt_rel; | |
2542 | unsigned char *extern_rt_rel_d; | |
2543 | char *oname; | |
2544 | bfd *abfd; | |
2545 | ||
1579bae1 | 2546 | oname = xmalloc (20); |
2fa9fc65 NC |
2547 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2548 | tmp_seq++; | |
2549 | ||
2550 | abfd = bfd_create (oname, parent); | |
2551 | bfd_find_target (pe_details->object_target, abfd); | |
2552 | bfd_make_writable (abfd); | |
2553 | ||
2554 | bfd_set_format (abfd, bfd_object); | |
2555 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2556 | ||
2557 | symptr = 0; | |
1579bae1 | 2558 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2559 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2560 | ||
00479ba8 | 2561 | quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC, |
1579bae1 | 2562 | BSF_NO_FLAGS, 0); |
2fa9fc65 | 2563 | |
9382254d KT |
2564 | bfd_set_section_size (abfd, extern_rt_rel, PE_IDATA5_SIZE); |
2565 | extern_rt_rel_d = xmalloc (PE_IDATA5_SIZE); | |
2fa9fc65 NC |
2566 | extern_rt_rel->contents = extern_rt_rel_d; |
2567 | ||
2568 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2569 | save_relocs (extern_rt_rel); | |
2570 | ||
2571 | bfd_set_symtab (abfd, symtab, symptr); | |
2572 | ||
9382254d | 2573 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2574 | |
2575 | bfd_make_readable (abfd); | |
2576 | return abfd; | |
2577 | } | |
2578 | ||
b044cda1 | 2579 | void |
6cb442d3 | 2580 | pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend) |
b044cda1 CW |
2581 | { |
2582 | char buf[300]; | |
fc0a2244 | 2583 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2584 | struct bfd_link_hash_entry *name_thunk_sym; |
9382254d | 2585 | struct bfd_link_hash_entry *name_imp_sym; |
db09f25b | 2586 | const char *name = sym->name; |
b044cda1 | 2587 | char *fixup_name = make_import_fixup_mark (rel); |
2fa9fc65 | 2588 | bfd *b; |
9382254d KT |
2589 | int need_import_table = 1; |
2590 | ||
17f73277 | 2591 | sprintf (buf, "__imp_%s", name); |
9382254d | 2592 | name_imp_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); |
b044cda1 | 2593 | |
17f73277 | 2594 | sprintf (buf, "__nm_thnk_%s", name); |
b044cda1 CW |
2595 | |
2596 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
2597 | ||
9382254d KT |
2598 | /* For version 2 pseudo relocation we don't need to add an import |
2599 | if the import symbol is already present. */ | |
2600 | if (link_info.pei386_runtime_pseudo_reloc == 2 | |
2601 | && name_imp_sym | |
2602 | && name_imp_sym->type == bfd_link_hash_defined) | |
2603 | need_import_table = 0; | |
2604 | ||
2605 | if (need_import_table == 1 | |
2606 | && (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined)) | |
b044cda1 | 2607 | { |
91d6fa6a | 2608 | b = make_singleton_name_thunk (name, link_info.output_bfd); |
b044cda1 CW |
2609 | add_bfd_to_link (b, b->filename, &link_info); |
2610 | ||
9382254d KT |
2611 | /* If we ever use autoimport, we have to cast text section writable. |
2612 | But not for version 2. */ | |
2613 | if (link_info.pei386_runtime_pseudo_reloc != 2) | |
2614 | { | |
2615 | config.text_read_only = FALSE; | |
2616 | link_info.output_bfd->flags &= ~WP_TEXT; | |
2617 | } | |
2618 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
2619 | { | |
2620 | b = make_singleton_name_imp (name, link_info.output_bfd); | |
2621 | add_bfd_to_link (b, b->filename, &link_info); | |
2622 | } | |
b044cda1 CW |
2623 | } |
2624 | ||
9382254d KT |
2625 | if ((addend == 0 || link_info.pei386_runtime_pseudo_reloc) |
2626 | && need_import_table == 1) | |
2fa9fc65 NC |
2627 | { |
2628 | extern char * pe_data_import_dll; | |
91d6fa6a | 2629 | char * symname = pe_data_import_dll ? pe_data_import_dll : "unknown"; |
aa3d9aba | 2630 | |
91d6fa6a | 2631 | b = make_import_fixup_entry (name, fixup_name, symname, |
f13a99db | 2632 | link_info.output_bfd); |
2fa9fc65 NC |
2633 | add_bfd_to_link (b, b->filename, &link_info); |
2634 | } | |
2635 | ||
6cb442d3 KT |
2636 | if ((link_info.pei386_runtime_pseudo_reloc != 0 && addend != 0) |
2637 | || link_info.pei386_runtime_pseudo_reloc == 2) | |
2638 | { | |
2639 | if (pe_dll_extra_pe_debug) | |
2640 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2641 | fixup_name, (int) addend); | |
2642 | ||
2643 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, rel->howto->bitsize, | |
2644 | link_info.output_bfd); | |
2645 | add_bfd_to_link (b, b->filename, &link_info); | |
2646 | ||
2647 | if (runtime_pseudo_relocs_created == 0) | |
2648 | { | |
2649 | b = pe_create_runtime_relocator_reference (link_info.output_bfd); | |
2650 | add_bfd_to_link (b, b->filename, &link_info); | |
2651 | } | |
2652 | runtime_pseudo_relocs_created++; | |
2653 | } | |
2654 | else if (addend != 0) | |
2655 | { | |
2656 | einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"), | |
2657 | s->owner, s, rel->address, sym->name); | |
2658 | einfo ("%X"); | |
2659 | } | |
b044cda1 CW |
2660 | } |
2661 | ||
2662 | ||
252b5132 | 2663 | void |
e1c37eb5 | 2664 | pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info) |
252b5132 RH |
2665 | { |
2666 | int i; | |
2667 | bfd *ar_head; | |
2668 | bfd *ar_tail; | |
2669 | bfd *outarch; | |
e1c37eb5 | 2670 | bfd *ibfd; |
252b5132 RH |
2671 | bfd *head = 0; |
2672 | ||
5aaace27 | 2673 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2674 | dll_symname = xstrdup (dll_filename); |
d643799d | 2675 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2676 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2677 | dll_symname[i] = '_'; |
2678 | ||
bb14f524 | 2679 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2680 | |
2681 | outarch = bfd_openw (impfilename, 0); | |
2682 | ||
2683 | if (!outarch) | |
2684 | { | |
2685 | /* xgettext:c-format */ | |
2686 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
2687 | return; | |
2688 | } | |
2689 | ||
2690 | /* xgettext:c-format */ | |
63d85248 | 2691 | info_msg (_("Creating library file: %s\n"), impfilename); |
9382254d | 2692 | |
252b5132 RH |
2693 | bfd_set_format (outarch, bfd_archive); |
2694 | outarch->has_armap = 1; | |
2695 | ||
5cc18311 | 2696 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2697 | ar_head = make_head (outarch); |
252b5132 | 2698 | |
e1c37eb5 DK |
2699 | /* Iterate the input BFDs, looking for exclude-modules-for-implib. */ |
2700 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
2701 | { | |
2702 | /* Iterate the exclude list. */ | |
2703 | struct exclude_list_struct *ex; | |
2704 | char found; | |
2705 | for (ex = excludes, found = 0; ex && !found; ex = ex->next) | |
2706 | { | |
2707 | if (ex->type != EXCLUDEFORIMPLIB) | |
2708 | continue; | |
42627821 | 2709 | found = (filename_cmp (ex->string, ibfd->filename) == 0); |
e1c37eb5 DK |
2710 | } |
2711 | /* If it matched, we must open a fresh BFD for it (the original | |
2712 | input BFD is still needed for the DLL's final link) and add | |
2713 | it into the archive member chain. */ | |
2714 | if (found) | |
2715 | { | |
9382254d | 2716 | bfd *newbfd = bfd_openr (ibfd->my_archive |
e1c37eb5 DK |
2717 | ? ibfd->my_archive->filename : ibfd->filename, NULL); |
2718 | if (!newbfd) | |
2719 | { | |
2720 | einfo (_("%Xbfd_openr %s: %E\n"), ibfd->filename); | |
2721 | return; | |
2722 | } | |
2723 | if (ibfd->my_archive) | |
2724 | { | |
2725 | /* Must now iterate through archive until we find the | |
2726 | required member. A minor shame that we'll open the | |
2727 | archive once per member that we require from it, and | |
2728 | leak those archive bfds rather than reuse them. */ | |
2729 | bfd *arbfd = newbfd; | |
2730 | if (!bfd_check_format_matches (arbfd, bfd_archive, NULL)) | |
2731 | { | |
9382254d | 2732 | einfo (_("%X%s(%s): can't find member in non-archive file"), |
e1c37eb5 DK |
2733 | ibfd->my_archive->filename, ibfd->filename); |
2734 | return; | |
2735 | } | |
2736 | newbfd = NULL; | |
2737 | while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0) | |
2738 | { | |
42627821 | 2739 | if (filename_cmp (newbfd->filename, ibfd->filename) == 0) |
e1c37eb5 DK |
2740 | break; |
2741 | } | |
2742 | if (!newbfd) | |
2743 | { | |
9382254d | 2744 | einfo (_("%X%s(%s): can't find member in archive"), |
e1c37eb5 DK |
2745 | ibfd->my_archive->filename, ibfd->filename); |
2746 | return; | |
2747 | } | |
2748 | } | |
2749 | newbfd->archive_next = head; | |
2750 | head = newbfd; | |
2751 | } | |
2752 | } | |
2753 | ||
d643799d | 2754 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2755 | { |
86b1cc60 | 2756 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2757 | char *internal = def->exports[i].internal_name; |
2758 | bfd *n; | |
775cabad | 2759 | |
9382254d | 2760 | /* Don't add PRIVATE entries to import lib. */ |
ee31fbd0 NC |
2761 | if (pe_def_file->exports[i].flag_private) |
2762 | continue; | |
252b5132 | 2763 | def->exports[i].internal_name = def->exports[i].name; |
54727719 NC |
2764 | n = make_one (def->exports + i, outarch, |
2765 | ! (def->exports + i)->flag_data); | |
cc481421 | 2766 | n->archive_next = head; |
252b5132 RH |
2767 | head = n; |
2768 | def->exports[i].internal_name = internal; | |
2769 | } | |
2770 | ||
c6c37250 DD |
2771 | ar_tail = make_tail (outarch); |
2772 | ||
2773 | if (ar_head == NULL || ar_tail == NULL) | |
2774 | return; | |
2775 | ||
86b1cc60 | 2776 | /* Now stick them all into the archive. */ |
cc481421 AM |
2777 | ar_head->archive_next = head; |
2778 | ar_tail->archive_next = ar_head; | |
252b5132 RH |
2779 | head = ar_tail; |
2780 | ||
2781 | if (! bfd_set_archive_head (outarch, head)) | |
36230712 | 2782 | einfo ("%Xbfd_set_archive_head: %E\n"); |
5cc18311 | 2783 | |
252b5132 | 2784 | if (! bfd_close (outarch)) |
36230712 | 2785 | einfo ("%Xbfd_close %s: %E\n", impfilename); |
252b5132 RH |
2786 | |
2787 | while (head != NULL) | |
2788 | { | |
cc481421 | 2789 | bfd *n = head->archive_next; |
252b5132 RH |
2790 | bfd_close (head); |
2791 | head = n; | |
2792 | } | |
2793 | } | |
2794 | ||
8a9eab9b KT |
2795 | static struct bfd_link_hash_entry *found_sym; |
2796 | ||
2797 | static bfd_boolean | |
2798 | pe_undef_alias_cdecl_match (struct bfd_link_hash_entry *h, void *inf) | |
2799 | { | |
2800 | int sl; | |
2801 | char *string = inf; | |
2802 | const char *hs = h->root.string; | |
2803 | ||
2804 | sl = strlen (string); | |
2805 | if (h->type == bfd_link_hash_undefined | |
17f73277 KT |
2806 | && ((*hs == '@' && (!pe_details->underscored || *string == '_') |
2807 | && strncmp (hs + 1, string + (pe_details->underscored != 0), | |
2808 | sl - (pe_details->underscored != 0)) == 0) | |
8a9eab9b KT |
2809 | || strncmp (hs, string, sl) == 0) |
2810 | && h->root.string[sl] == '@') | |
2811 | { | |
2812 | found_sym = h; | |
2813 | return FALSE; | |
2814 | } | |
2815 | return TRUE; | |
2816 | } | |
2817 | ||
2818 | static struct bfd_link_hash_entry * | |
2819 | pe_find_cdecl_alias_match (char *name) | |
2820 | { | |
2821 | found_sym = 0; | |
2822 | bfd_link_hash_traverse (link_info.hash, pe_undef_alias_cdecl_match, | |
2823 | (char *) name); | |
2824 | return found_sym; | |
2825 | } | |
2826 | ||
252b5132 | 2827 | static void |
91d6fa6a | 2828 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *linfo) |
252b5132 RH |
2829 | { |
2830 | lang_input_statement_type *fake_file; | |
775cabad | 2831 | |
252b5132 RH |
2832 | fake_file = lang_add_input_file (name, |
2833 | lang_input_file_is_fake_enum, | |
2834 | NULL); | |
2835 | fake_file->the_bfd = abfd; | |
2836 | ldlang_add_file (fake_file); | |
775cabad | 2837 | |
91d6fa6a | 2838 | if (!bfd_link_add_symbols (abfd, linfo)) |
36230712 | 2839 | einfo ("%Xaddsym %s: %E\n", name); |
252b5132 RH |
2840 | } |
2841 | ||
2842 | void | |
91d6fa6a | 2843 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *linfo) |
252b5132 RH |
2844 | { |
2845 | def_file_module *module; | |
775cabad | 2846 | |
d643799d | 2847 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
2848 | |
2849 | if (!pe_def_file) | |
2850 | return; | |
2851 | ||
2852 | for (module = pe_def_file->modules; module; module = module->next) | |
2853 | { | |
2854 | int i, do_this_dll; | |
2855 | ||
2856 | dll_filename = module->name; | |
2857 | dll_symname = xstrdup (module->name); | |
d643799d | 2858 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2859 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2860 | dll_symname[i] = '_'; |
2861 | ||
2862 | do_this_dll = 0; | |
2863 | ||
d643799d | 2864 | for (i = 0; i < pe_def_file->num_imports; i++) |
252b5132 RH |
2865 | if (pe_def_file->imports[i].module == module) |
2866 | { | |
2867 | def_file_export exp; | |
2868 | struct bfd_link_hash_entry *blhe; | |
b34976b6 | 2869 | int lead_at = (*pe_def_file->imports[i].internal_name == '@'); |
86b1cc60 | 2870 | /* See if we need this import. */ |
1579bae1 AM |
2871 | size_t len = strlen (pe_def_file->imports[i].internal_name); |
2872 | char *name = xmalloc (len + 2 + 6); | |
54727719 | 2873 | bfd_boolean include_jmp_stub = FALSE; |
8a9eab9b KT |
2874 | bfd_boolean is_cdecl = FALSE; |
2875 | if (!lead_at && strchr (pe_def_file->imports[i].internal_name, '@') == NULL) | |
2876 | is_cdecl = TRUE; | |
c9e38879 NC |
2877 | |
2878 | if (lead_at) | |
00479ba8 | 2879 | sprintf (name, "%s", |
1579bae1 | 2880 | pe_def_file->imports[i].internal_name); |
c9e38879 | 2881 | else |
1579bae1 AM |
2882 | sprintf (name, "%s%s",U (""), |
2883 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2884 | |
91d6fa6a | 2885 | blhe = bfd_link_hash_lookup (linfo->hash, name, |
b34976b6 | 2886 | FALSE, FALSE, FALSE); |
c9e38879 | 2887 | |
54727719 NC |
2888 | /* Include the jump stub for <sym> only if the <sym> |
2889 | is undefined. */ | |
874c8c99 DD |
2890 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
2891 | { | |
c9e38879 | 2892 | if (lead_at) |
9382254d | 2893 | sprintf (name, "%s%s", "__imp_", |
c9e38879 NC |
2894 | pe_def_file->imports[i].internal_name); |
2895 | else | |
00479ba8 | 2896 | sprintf (name, "%s%s%s", "__imp_", U (""), |
c9e38879 NC |
2897 | pe_def_file->imports[i].internal_name); |
2898 | ||
91d6fa6a | 2899 | blhe = bfd_link_hash_lookup (linfo->hash, name, |
b34976b6 | 2900 | FALSE, FALSE, FALSE); |
874c8c99 | 2901 | } |
54727719 NC |
2902 | else |
2903 | include_jmp_stub = TRUE; | |
2904 | ||
8a9eab9b KT |
2905 | if (is_cdecl && !blhe) |
2906 | { | |
2907 | sprintf (name, "%s%s",U (""), | |
2908 | pe_def_file->imports[i].internal_name); | |
2909 | blhe = pe_find_cdecl_alias_match (name); | |
2910 | include_jmp_stub = TRUE; | |
2911 | } | |
2912 | ||
252b5132 | 2913 | free (name); |
c9e38879 | 2914 | |
252b5132 RH |
2915 | if (blhe && blhe->type == bfd_link_hash_undefined) |
2916 | { | |
2917 | bfd *one; | |
86b1cc60 | 2918 | /* We do. */ |
252b5132 RH |
2919 | if (!do_this_dll) |
2920 | { | |
2921 | bfd *ar_head = make_head (output_bfd); | |
91d6fa6a | 2922 | add_bfd_to_link (ar_head, ar_head->filename, linfo); |
252b5132 RH |
2923 | do_this_dll = 1; |
2924 | } | |
2925 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
2926 | exp.name = pe_def_file->imports[i].name; | |
7fcab871 | 2927 | exp.its_name = pe_def_file->imports[i].its_name; |
252b5132 RH |
2928 | exp.ordinal = pe_def_file->imports[i].ordinal; |
2929 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
2930 | exp.flag_private = 0; | |
2931 | exp.flag_constant = 0; | |
939ba9d0 | 2932 | exp.flag_data = pe_def_file->imports[i].data; |
252b5132 | 2933 | exp.flag_noname = exp.name ? 0 : 1; |
54727719 | 2934 | one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub); |
91d6fa6a | 2935 | add_bfd_to_link (one, one->filename, linfo); |
252b5132 RH |
2936 | } |
2937 | } | |
2938 | if (do_this_dll) | |
2939 | { | |
2940 | bfd *ar_tail = make_tail (output_bfd); | |
91d6fa6a | 2941 | add_bfd_to_link (ar_tail, ar_tail->filename, linfo); |
252b5132 RH |
2942 | } |
2943 | ||
2944 | free (dll_symname); | |
2945 | } | |
2946 | } | |
2947 | ||
775cabad | 2948 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
2949 | IMPORTS directives in the def file. Return TRUE if the file was |
2950 | handled, FALSE if not. */ | |
252b5132 RH |
2951 | |
2952 | static unsigned int | |
1579bae1 | 2953 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
2954 | { |
2955 | unsigned char b[2]; | |
775cabad | 2956 | |
db09f25b AM |
2957 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2958 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 2959 | return b[0] + (b[1] << 8); |
252b5132 RH |
2960 | } |
2961 | ||
2962 | static unsigned int | |
1579bae1 | 2963 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
2964 | { |
2965 | unsigned char b[4]; | |
775cabad | 2966 | |
db09f25b AM |
2967 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2968 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 2969 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2970 | } |
2971 | ||
252b5132 | 2972 | static unsigned int |
1579bae1 | 2973 | pe_as32 (void *ptr) |
252b5132 RH |
2974 | { |
2975 | unsigned char *b = ptr; | |
775cabad | 2976 | |
d643799d | 2977 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2978 | } |
2979 | ||
b34976b6 | 2980 | bfd_boolean |
1579bae1 | 2981 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
2982 | { |
2983 | bfd *dll; | |
6ca0987a KT |
2984 | bfd_vma pe_header_offset, opthdr_ofs, num_entries, i; |
2985 | bfd_vma export_rva, export_size, nsections, secptr, expptr; | |
2986 | bfd_vma exp_funcbase; | |
47639182 AM |
2987 | unsigned char *expdata; |
2988 | char *erva; | |
c7e2358a | 2989 | bfd_vma name_rvas, nexp; |
91d6fa6a | 2990 | const char *dllname; |
939ba9d0 NC |
2991 | /* Initialization with start > end guarantees that is_data |
2992 | will not be set by mistake, and avoids compiler warning. */ | |
6ca0987a KT |
2993 | bfd_vma data_start = 1; |
2994 | bfd_vma data_end = 0; | |
2995 | bfd_vma rdata_start = 1; | |
2996 | bfd_vma rdata_end = 0; | |
2997 | bfd_vma bss_start = 1; | |
2998 | bfd_vma bss_end = 0; | |
252b5132 RH |
2999 | |
3000 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 3001 | the middle of the .rdata section. */ |
c6c37250 | 3002 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
3003 | if (!dll) |
3004 | { | |
36230712 | 3005 | einfo ("%Xopen %s: %E\n", filename); |
b34976b6 | 3006 | return FALSE; |
252b5132 | 3007 | } |
775cabad | 3008 | |
86b1cc60 | 3009 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
3010 | if (!bfd_check_format (dll, bfd_object)) |
3011 | { | |
3012 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
b34976b6 | 3013 | return FALSE; |
252b5132 RH |
3014 | } |
3015 | ||
d0069cab | 3016 | /* Get pe_header, optional header and numbers of directory entries. */ |
252b5132 RH |
3017 | pe_header_offset = pe_get32 (dll, 0x3c); |
3018 | opthdr_ofs = pe_header_offset + 4 + 20; | |
99ad8390 NC |
3019 | #ifdef pe_use_x86_64 |
3020 | num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */ | |
3021 | #else | |
252b5132 | 3022 | num_entries = pe_get32 (dll, opthdr_ofs + 92); |
99ad8390 | 3023 | #endif |
775cabad | 3024 | |
d0069cab TG |
3025 | /* No import or export directory entry. */ |
3026 | if (num_entries < 1) | |
b34976b6 | 3027 | return FALSE; |
775cabad | 3028 | |
99ad8390 NC |
3029 | #ifdef pe_use_x86_64 |
3030 | export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4); | |
3031 | export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4); | |
3032 | #else | |
252b5132 RH |
3033 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
3034 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
99ad8390 | 3035 | #endif |
9382254d | 3036 | |
d0069cab TG |
3037 | /* No export table - nothing to export. */ |
3038 | if (export_size == 0) | |
3039 | return FALSE; | |
3040 | ||
252b5132 RH |
3041 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); |
3042 | secptr = (pe_header_offset + 4 + 20 + | |
3043 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
3044 | expptr = 0; | |
775cabad | 3045 | |
1579bae1 | 3046 | /* Get the rva and size of the export section. */ |
d643799d | 3047 | for (i = 0; i < nsections; i++) |
252b5132 RH |
3048 | { |
3049 | char sname[8]; | |
6ca0987a KT |
3050 | bfd_vma secptr1 = secptr + 40 * i; |
3051 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3052 | bfd_vma vsize = pe_get32 (dll, secptr1 + 16); | |
3053 | bfd_vma fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 3054 | |
db09f25b AM |
3055 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
3056 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 3057 | |
d643799d | 3058 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
3059 | { |
3060 | expptr = fptr + (export_rva - vaddr); | |
3061 | if (export_rva + export_size > vaddr + vsize) | |
3062 | export_size = vsize - (export_rva - vaddr); | |
3063 | break; | |
3064 | } | |
3065 | } | |
3066 | ||
939ba9d0 | 3067 | /* Scan sections and store the base and size of the |
1579bae1 | 3068 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
3069 | for (i = 0; i < nsections; i++) |
3070 | { | |
6ca0987a KT |
3071 | bfd_vma secptr1 = secptr + 40 * i; |
3072 | bfd_vma vsize = pe_get32 (dll, secptr1 + 8); | |
3073 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3074 | bfd_vma flags = pe_get32 (dll, secptr1 + 36); | |
939ba9d0 NC |
3075 | char sec_name[9]; |
3076 | ||
3077 | sec_name[8] = '\0'; | |
3078 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
3079 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
3080 | ||
3081 | if (strcmp(sec_name,".data") == 0) | |
3082 | { | |
3083 | data_start = vaddr; | |
3084 | data_end = vaddr + vsize; | |
3085 | ||
661a32f7 DS |
3086 | if (pe_dll_extra_pe_debug) |
3087 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3088 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3089 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
661a32f7 DS |
3090 | } |
3091 | else if (strcmp(sec_name,".rdata") == 0) | |
3092 | { | |
3093 | rdata_start = vaddr; | |
3094 | rdata_end = vaddr + vsize; | |
3095 | ||
939ba9d0 NC |
3096 | if (pe_dll_extra_pe_debug) |
3097 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3098 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3099 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
1579bae1 | 3100 | } |
939ba9d0 NC |
3101 | else if (strcmp (sec_name,".bss") == 0) |
3102 | { | |
3103 | bss_start = vaddr; | |
3104 | bss_end = vaddr + vsize; | |
3105 | ||
3106 | if (pe_dll_extra_pe_debug) | |
3107 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3108 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3109 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
939ba9d0 NC |
3110 | } |
3111 | } | |
3112 | ||
1579bae1 | 3113 | expdata = xmalloc (export_size); |
db09f25b AM |
3114 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
3115 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 3116 | erva = (char *) expdata - export_rva; |
252b5132 RH |
3117 | |
3118 | if (pe_def_file == 0) | |
d643799d | 3119 | pe_def_file = def_file_empty (); |
252b5132 | 3120 | |
d643799d KH |
3121 | nexp = pe_as32 (expdata + 24); |
3122 | name_rvas = pe_as32 (expdata + 32); | |
939ba9d0 | 3123 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 3124 | |
939ba9d0 NC |
3125 | /* Use internal dll name instead of filename |
3126 | to enable symbolic dll linking. */ | |
91d6fa6a | 3127 | dllname = erva + pe_as32 (expdata + 12); |
939ba9d0 | 3128 | |
a35bc64f NC |
3129 | /* Check to see if the dll has already been added to |
3130 | the definition list and if so return without error. | |
3131 | This avoids multiple symbol definitions. */ | |
91d6fa6a | 3132 | if (def_get_module (pe_def_file, dllname)) |
a35bc64f NC |
3133 | { |
3134 | if (pe_dll_extra_pe_debug) | |
91d6fa6a | 3135 | printf ("%s is already loaded\n", dllname); |
a35bc64f NC |
3136 | return TRUE; |
3137 | } | |
3138 | ||
939ba9d0 | 3139 | /* Iterate through the list of symbols. */ |
d643799d | 3140 | for (i = 0; i < nexp; i++) |
252b5132 | 3141 | { |
939ba9d0 | 3142 | /* Pointer to the names vector. */ |
6ca0987a | 3143 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 3144 | def_file_import *imp; |
1579bae1 | 3145 | /* Pointer to the function address vector. */ |
6ca0987a | 3146 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
939ba9d0 NC |
3147 | int is_data = 0; |
3148 | ||
3149 | /* Skip unwanted symbols, which are | |
3150 | exported in buggy auto-import releases. */ | |
17f73277 | 3151 | if (! CONST_STRNEQ (erva + name_rva, "__nm_")) |
939ba9d0 | 3152 | { |
db17156e | 3153 | int is_dup = 0; |
661a32f7 DS |
3154 | /* is_data is true if the address is in the data, rdata or bss |
3155 | segment. */ | |
939ba9d0 NC |
3156 | is_data = |
3157 | (func_rva >= data_start && func_rva < data_end) | |
661a32f7 | 3158 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
3159 | || (func_rva >= bss_start && func_rva < bss_end); |
3160 | ||
3161 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
db17156e | 3162 | dllname, i, 0, NULL, &is_dup); |
396a2467 | 3163 | /* Mark symbol type. */ |
db17156e KT |
3164 | if (!is_dup) |
3165 | imp->data = is_data; | |
1579bae1 | 3166 | |
939ba9d0 NC |
3167 | if (pe_dll_extra_pe_debug) |
3168 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
91d6fa6a | 3169 | __FUNCTION__, dllname, erva + name_rva, |
6ca0987a | 3170 | (unsigned long) func_rva, is_data ? "(data)" : ""); |
939ba9d0 | 3171 | } |
252b5132 RH |
3172 | } |
3173 | ||
b34976b6 | 3174 | return TRUE; |
252b5132 RH |
3175 | } |
3176 | ||
88183869 DK |
3177 | void |
3178 | pe_output_file_set_long_section_names (bfd *abfd) | |
3179 | { | |
3180 | if (pe_use_coff_long_section_names < 0) | |
3181 | return; | |
3182 | if (!bfd_coff_set_long_section_names (abfd, pe_use_coff_long_section_names)) | |
3183 | einfo (_("%XError: can't use long section names on this arch\n")); | |
3184 | } | |
3185 | ||
775cabad NC |
3186 | /* These are the main functions, called from the emulation. The first |
3187 | is called after the bfds are read, so we can guess at how much space | |
3188 | we need. The second is called after everything is placed, so we | |
3189 | can put the right values in place. */ | |
252b5132 RH |
3190 | |
3191 | void | |
1579bae1 | 3192 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3193 | { |
c6c37250 | 3194 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3195 | pe_output_file_set_long_section_names (abfd); |
c1711530 | 3196 | process_def_file_and_drectve (abfd, info); |
252b5132 | 3197 | |
1579bae1 | 3198 | if (pe_def_file->num_exports == 0 && !info->shared) |
2b817be1 NC |
3199 | return; |
3200 | ||
252b5132 | 3201 | generate_edata (abfd, info); |
c6c37250 | 3202 | build_filler_bfd (1); |
88183869 | 3203 | pe_output_file_set_long_section_names (filler_bfd); |
c6c37250 DD |
3204 | } |
3205 | ||
3206 | void | |
1579bae1 | 3207 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
3208 | { |
3209 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3210 | pe_output_file_set_long_section_names (abfd); |
c6c37250 | 3211 | build_filler_bfd (0); |
88183869 | 3212 | pe_output_file_set_long_section_names (filler_bfd); |
252b5132 RH |
3213 | } |
3214 | ||
3215 | void | |
1579bae1 | 3216 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3217 | { |
c6c37250 | 3218 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3219 | pe_output_file_set_long_section_names (abfd); |
252b5132 RH |
3220 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3221 | ||
3222 | generate_reloc (abfd, info); | |
3223 | if (reloc_sz > 0) | |
3224 | { | |
3225 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3226 | ||
3227 | /* Resize the sections. */ | |
38975f9e | 3228 | lang_reset_memory_regions (); |
e9ee469a | 3229 | lang_size_sections (NULL, TRUE); |
252b5132 RH |
3230 | |
3231 | /* Redo special stuff. */ | |
3232 | ldemul_after_allocation (); | |
3233 | ||
3234 | /* Do the assignments again. */ | |
2f65ac72 | 3235 | lang_do_assignments (lang_final_phase_enum); |
252b5132 RH |
3236 | } |
3237 | ||
3238 | fill_edata (abfd, info); | |
3239 | ||
db8acf26 | 3240 | if (info->shared && !info->pie) |
2b817be1 | 3241 | pe_data (abfd)->dll = 1; |
252b5132 RH |
3242 | |
3243 | edata_s->contents = edata_d; | |
3244 | reloc_s->contents = reloc_d; | |
3245 | } | |
c6c37250 DD |
3246 | |
3247 | void | |
1579bae1 | 3248 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
3249 | { |
3250 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3251 | pe_output_file_set_long_section_names (abfd); |
c6c37250 DD |
3252 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3253 | ||
3254 | generate_reloc (abfd, info); | |
3255 | if (reloc_sz > 0) | |
3256 | { | |
3257 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3258 | ||
3259 | /* Resize the sections. */ | |
38975f9e | 3260 | lang_reset_memory_regions (); |
e9ee469a | 3261 | lang_size_sections (NULL, TRUE); |
c6c37250 DD |
3262 | |
3263 | /* Redo special stuff. */ | |
3264 | ldemul_after_allocation (); | |
3265 | ||
3266 | /* Do the assignments again. */ | |
2f65ac72 | 3267 | lang_do_assignments (lang_final_phase_enum); |
c6c37250 DD |
3268 | } |
3269 | reloc_s->contents = reloc_d; | |
3270 | } | |
ff2bdb9c CF |
3271 | |
3272 | bfd_boolean | |
3273 | pe_bfd_is_dll (bfd *abfd) | |
3274 | { | |
3275 | return (bfd_get_format (abfd) == bfd_object | |
3276 | && obj_pe (abfd) | |
3277 | && pe_data (abfd)->dll); | |
3278 | } |