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14bfc3f5 ILT |
1 | // resolve.cc -- symbol resolution for gold |
2 | ||
0602e05a | 3 | // Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
6cb15b7f ILT |
4 | // Written by Ian Lance Taylor <iant@google.com>. |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
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 | |
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. | |
22 | ||
14bfc3f5 ILT |
23 | #include "gold.h" |
24 | ||
25 | #include "elfcpp.h" | |
26 | #include "target.h" | |
27 | #include "object.h" | |
28 | #include "symtab.h" | |
89fc3421 | 29 | #include "plugin.h" |
14bfc3f5 ILT |
30 | |
31 | namespace gold | |
32 | { | |
33 | ||
1564db8d ILT |
34 | // Symbol methods used in this file. |
35 | ||
75517b77 ILT |
36 | // This symbol is being overridden by another symbol whose version is |
37 | // VERSION. Update the VERSION_ field accordingly. | |
38 | ||
39 | inline void | |
2ea97941 | 40 | Symbol::override_version(const char* version) |
75517b77 | 41 | { |
2ea97941 | 42 | if (version == NULL) |
75517b77 ILT |
43 | { |
44 | // This is the case where this symbol is NAME/VERSION, and the | |
45 | // version was not marked as hidden. That makes it the default | |
46 | // version, so we create NAME/NULL. Later we see another symbol | |
47 | // NAME/NULL, and that symbol is overriding this one. In this | |
48 | // case, since NAME/VERSION is the default, we make NAME/NULL | |
49 | // override NAME/VERSION as well. They are already the same | |
50 | // Symbol structure. Setting the VERSION_ field to NULL ensures | |
51 | // that it will be output with the correct, empty, version. | |
2ea97941 | 52 | this->version_ = version; |
75517b77 ILT |
53 | } |
54 | else | |
55 | { | |
56 | // This is the case where this symbol is NAME/VERSION_ONE, and | |
57 | // now we see NAME/VERSION_TWO, and NAME/VERSION_TWO is | |
58 | // overriding NAME. If VERSION_ONE and VERSION_TWO are | |
59 | // different, then this can only happen when VERSION_ONE is NULL | |
60 | // and VERSION_TWO is not hidden. | |
2ea97941 ILT |
61 | gold_assert(this->version_ == version || this->version_ == NULL); |
62 | this->version_ = version; | |
75517b77 ILT |
63 | } |
64 | } | |
65 | ||
0602e05a ILT |
66 | // This symbol is being overidden by another symbol whose visibility |
67 | // is VISIBILITY. Updated the VISIBILITY_ field accordingly. | |
68 | ||
69 | inline void | |
2ea97941 | 70 | Symbol::override_visibility(elfcpp::STV visibility) |
0602e05a ILT |
71 | { |
72 | // The rule for combining visibility is that we always choose the | |
73 | // most constrained visibility. In order of increasing constraint, | |
74 | // visibility goes PROTECTED, HIDDEN, INTERNAL. This is the reverse | |
75 | // of the numeric values, so the effect is that we always want the | |
76 | // smallest non-zero value. | |
2ea97941 | 77 | if (visibility != elfcpp::STV_DEFAULT) |
0602e05a ILT |
78 | { |
79 | if (this->visibility_ == elfcpp::STV_DEFAULT) | |
2ea97941 ILT |
80 | this->visibility_ = visibility; |
81 | else if (this->visibility_ > visibility) | |
82 | this->visibility_ = visibility; | |
0602e05a ILT |
83 | } |
84 | } | |
85 | ||
1564db8d ILT |
86 | // Override the fields in Symbol. |
87 | ||
88 | template<int size, bool big_endian> | |
89 | void | |
90 | Symbol::override_base(const elfcpp::Sym<size, big_endian>& sym, | |
d491d34e | 91 | unsigned int st_shndx, bool is_ordinary, |
2ea97941 | 92 | Object* object, const char* version) |
1564db8d | 93 | { |
a3ad94ed | 94 | gold_assert(this->source_ == FROM_OBJECT); |
2ea97941 ILT |
95 | this->u_.from_object.object = object; |
96 | this->override_version(version); | |
d491d34e ILT |
97 | this->u_.from_object.shndx = st_shndx; |
98 | this->is_ordinary_shndx_ = is_ordinary; | |
1564db8d ILT |
99 | this->type_ = sym.get_st_type(); |
100 | this->binding_ = sym.get_st_bind(); | |
0602e05a | 101 | this->override_visibility(sym.get_st_visibility()); |
ead1e424 | 102 | this->nonvis_ = sym.get_st_nonvis(); |
2ea97941 | 103 | if (object->is_dynamic()) |
0d4f1889 ILT |
104 | this->in_dyn_ = true; |
105 | else | |
106 | this->in_reg_ = true; | |
1564db8d ILT |
107 | } |
108 | ||
109 | // Override the fields in Sized_symbol. | |
110 | ||
111 | template<int size> | |
112 | template<bool big_endian> | |
113 | void | |
114 | Sized_symbol<size>::override(const elfcpp::Sym<size, big_endian>& sym, | |
d491d34e | 115 | unsigned st_shndx, bool is_ordinary, |
2ea97941 | 116 | Object* object, const char* version) |
1564db8d | 117 | { |
2ea97941 | 118 | this->override_base(sym, st_shndx, is_ordinary, object, version); |
1564db8d | 119 | this->value_ = sym.get_st_value(); |
ead1e424 | 120 | this->symsize_ = sym.get_st_size(); |
1564db8d ILT |
121 | } |
122 | ||
aeddab66 ILT |
123 | // Override TOSYM with symbol FROMSYM, defined in OBJECT, with version |
124 | // VERSION. This handles all aliases of TOSYM. | |
125 | ||
126 | template<int size, bool big_endian> | |
127 | void | |
128 | Symbol_table::override(Sized_symbol<size>* tosym, | |
129 | const elfcpp::Sym<size, big_endian>& fromsym, | |
d491d34e | 130 | unsigned int st_shndx, bool is_ordinary, |
2ea97941 | 131 | Object* object, const char* version) |
aeddab66 | 132 | { |
2ea97941 | 133 | tosym->override(fromsym, st_shndx, is_ordinary, object, version); |
aeddab66 ILT |
134 | if (tosym->has_alias()) |
135 | { | |
136 | Symbol* sym = this->weak_aliases_[tosym]; | |
137 | gold_assert(sym != NULL); | |
7d1a9ebb | 138 | Sized_symbol<size>* ssym = this->get_sized_symbol<size>(sym); |
aeddab66 ILT |
139 | do |
140 | { | |
2ea97941 | 141 | ssym->override(fromsym, st_shndx, is_ordinary, object, version); |
aeddab66 ILT |
142 | sym = this->weak_aliases_[ssym]; |
143 | gold_assert(sym != NULL); | |
7d1a9ebb | 144 | ssym = this->get_sized_symbol<size>(sym); |
aeddab66 ILT |
145 | } |
146 | while (ssym != tosym); | |
147 | } | |
148 | } | |
149 | ||
86f2e683 ILT |
150 | // The resolve functions build a little code for each symbol. |
151 | // Bit 0: 0 for global, 1 for weak. | |
152 | // Bit 1: 0 for regular object, 1 for shared object | |
153 | // Bits 2-3: 0 for normal, 1 for undefined, 2 for common | |
154 | // This gives us values from 0 to 11. | |
155 | ||
156 | static const int global_or_weak_shift = 0; | |
157 | static const unsigned int global_flag = 0 << global_or_weak_shift; | |
158 | static const unsigned int weak_flag = 1 << global_or_weak_shift; | |
159 | ||
160 | static const int regular_or_dynamic_shift = 1; | |
161 | static const unsigned int regular_flag = 0 << regular_or_dynamic_shift; | |
162 | static const unsigned int dynamic_flag = 1 << regular_or_dynamic_shift; | |
163 | ||
164 | static const int def_undef_or_common_shift = 2; | |
165 | static const unsigned int def_flag = 0 << def_undef_or_common_shift; | |
166 | static const unsigned int undef_flag = 1 << def_undef_or_common_shift; | |
167 | static const unsigned int common_flag = 2 << def_undef_or_common_shift; | |
168 | ||
70e654ba ILT |
169 | // This convenience function combines all the flags based on facts |
170 | // about the symbol. | |
171 | ||
172 | static unsigned int | |
173 | symbol_to_bits(elfcpp::STB binding, bool is_dynamic, | |
d491d34e | 174 | unsigned int shndx, bool is_ordinary, elfcpp::STT type) |
70e654ba ILT |
175 | { |
176 | unsigned int bits; | |
177 | ||
178 | switch (binding) | |
179 | { | |
180 | case elfcpp::STB_GLOBAL: | |
adcf2816 | 181 | case elfcpp::STB_GNU_UNIQUE: |
70e654ba ILT |
182 | bits = global_flag; |
183 | break; | |
184 | ||
185 | case elfcpp::STB_WEAK: | |
186 | bits = weak_flag; | |
187 | break; | |
188 | ||
189 | case elfcpp::STB_LOCAL: | |
190 | // We should only see externally visible symbols in the symbol | |
191 | // table. | |
192 | gold_error(_("invalid STB_LOCAL symbol in external symbols")); | |
193 | bits = global_flag; | |
194 | ||
195 | default: | |
196 | // Any target which wants to handle STB_LOOS, etc., needs to | |
197 | // define a resolve method. | |
198 | gold_error(_("unsupported symbol binding")); | |
199 | bits = global_flag; | |
200 | } | |
201 | ||
202 | if (is_dynamic) | |
203 | bits |= dynamic_flag; | |
204 | else | |
205 | bits |= regular_flag; | |
206 | ||
207 | switch (shndx) | |
208 | { | |
209 | case elfcpp::SHN_UNDEF: | |
210 | bits |= undef_flag; | |
211 | break; | |
212 | ||
213 | case elfcpp::SHN_COMMON: | |
d491d34e ILT |
214 | if (!is_ordinary) |
215 | bits |= common_flag; | |
70e654ba ILT |
216 | break; |
217 | ||
218 | default: | |
219 | if (type == elfcpp::STT_COMMON) | |
220 | bits |= common_flag; | |
8a5e3e08 ILT |
221 | else if (!is_ordinary && Symbol::is_common_shndx(shndx)) |
222 | bits |= common_flag; | |
70e654ba ILT |
223 | else |
224 | bits |= def_flag; | |
225 | break; | |
226 | } | |
227 | ||
228 | return bits; | |
229 | } | |
230 | ||
14bfc3f5 | 231 | // Resolve a symbol. This is called the second and subsequent times |
d491d34e ILT |
232 | // we see a symbol. TO is the pre-existing symbol. ST_SHNDX is the |
233 | // section index for SYM, possibly adjusted for many sections. | |
234 | // IS_ORDINARY is whether ST_SHNDX is a normal section index rather | |
235 | // than a special code. ORIG_ST_SHNDX is the original section index, | |
236 | // before any munging because of discarded sections, except that all | |
95d14cd3 | 237 | // non-ordinary section indexes are mapped to SHN_UNDEF. VERSION is |
d491d34e | 238 | // the version of SYM. |
14bfc3f5 ILT |
239 | |
240 | template<int size, bool big_endian> | |
241 | void | |
1564db8d | 242 | Symbol_table::resolve(Sized_symbol<size>* to, |
14bfc3f5 | 243 | const elfcpp::Sym<size, big_endian>& sym, |
d491d34e ILT |
244 | unsigned int st_shndx, bool is_ordinary, |
245 | unsigned int orig_st_shndx, | |
14b31740 | 246 | Object* object, const char* version) |
14bfc3f5 | 247 | { |
029ba973 | 248 | if (parameters->target().has_resolve()) |
14bfc3f5 | 249 | { |
274e99f9 | 250 | Sized_target<size, big_endian>* sized_target; |
029ba973 | 251 | sized_target = parameters->sized_target<size, big_endian>(); |
14b31740 | 252 | sized_target->resolve(to, sym, object, version); |
14bfc3f5 ILT |
253 | return; |
254 | } | |
255 | ||
86f2e683 ILT |
256 | if (!object->is_dynamic()) |
257 | { | |
258 | // Record that we've seen this symbol in a regular object. | |
259 | to->set_in_reg(); | |
260 | } | |
2da73f13 CC |
261 | else if (st_shndx == elfcpp::SHN_UNDEF |
262 | && (to->visibility() == elfcpp::STV_HIDDEN | |
263 | || to->visibility() == elfcpp::STV_INTERNAL)) | |
645afe0c CC |
264 | { |
265 | // A dynamic object cannot reference a hidden or internal symbol | |
266 | // defined in another object. | |
267 | gold_warning(_("%s symbol '%s' in %s is referenced by DSO %s"), | |
268 | (to->visibility() == elfcpp::STV_HIDDEN | |
269 | ? "hidden" | |
270 | : "internal"), | |
271 | to->demangled_name().c_str(), | |
272 | to->object()->name().c_str(), | |
273 | object->name().c_str()); | |
274 | return; | |
275 | } | |
86f2e683 ILT |
276 | else |
277 | { | |
278 | // Record that we've seen this symbol in a dynamic object. | |
279 | to->set_in_dyn(); | |
280 | } | |
14bfc3f5 | 281 | |
89fc3421 CC |
282 | // Record if we've seen this symbol in a real ELF object (i.e., the |
283 | // symbol is referenced from outside the world known to the plugin). | |
284 | if (object->pluginobj() == NULL) | |
285 | to->set_in_real_elf(); | |
286 | ||
287 | // If we're processing replacement files, allow new symbols to override | |
288 | // the placeholders from the plugin objects. | |
289 | if (to->source() == Symbol::FROM_OBJECT) | |
290 | { | |
291 | Pluginobj* obj = to->object()->pluginobj(); | |
292 | if (obj != NULL | |
293 | && parameters->options().plugins()->in_replacement_phase()) | |
294 | { | |
295 | this->override(to, sym, st_shndx, is_ordinary, object, version); | |
296 | return; | |
297 | } | |
298 | } | |
299 | ||
70e654ba ILT |
300 | unsigned int frombits = symbol_to_bits(sym.get_st_bind(), |
301 | object->is_dynamic(), | |
d491d34e | 302 | st_shndx, is_ordinary, |
70e654ba | 303 | sym.get_st_type()); |
14bfc3f5 | 304 | |
86f2e683 | 305 | bool adjust_common_sizes; |
1ae4d23b | 306 | typename Sized_symbol<size>::Size_type tosize = to->symsize(); |
99fff23b | 307 | if (Symbol_table::should_override(to, frombits, OBJECT, object, |
d20222a1 | 308 | &adjust_common_sizes)) |
86f2e683 | 309 | { |
d491d34e | 310 | this->override(to, sym, st_shndx, is_ordinary, object, version); |
86f2e683 ILT |
311 | if (adjust_common_sizes && tosize > to->symsize()) |
312 | to->set_symsize(tosize); | |
313 | } | |
314 | else | |
315 | { | |
1ae4d23b | 316 | if (adjust_common_sizes && sym.get_st_size() > tosize) |
86f2e683 | 317 | to->set_symsize(sym.get_st_size()); |
0602e05a ILT |
318 | // The ELF ABI says that even for a reference to a symbol we |
319 | // merge the visibility. | |
320 | to->override_visibility(sym.get_st_visibility()); | |
86f2e683 | 321 | } |
70e654ba | 322 | |
1ae4d23b ILT |
323 | if (adjust_common_sizes && parameters->options().warn_common()) |
324 | { | |
325 | if (tosize > sym.get_st_size()) | |
326 | Symbol_table::report_resolve_problem(false, | |
327 | _("common of '%s' overriding " | |
328 | "smaller common"), | |
99fff23b | 329 | to, OBJECT, object); |
1ae4d23b ILT |
330 | else if (tosize < sym.get_st_size()) |
331 | Symbol_table::report_resolve_problem(false, | |
332 | _("common of '%s' overidden by " | |
333 | "larger common"), | |
99fff23b | 334 | to, OBJECT, object); |
1ae4d23b ILT |
335 | else |
336 | Symbol_table::report_resolve_problem(false, | |
337 | _("multiple common of '%s'"), | |
99fff23b | 338 | to, OBJECT, object); |
1ae4d23b ILT |
339 | } |
340 | ||
70e654ba ILT |
341 | // A new weak undefined reference, merging with an old weak |
342 | // reference, could be a One Definition Rule (ODR) violation -- | |
343 | // especially if the types or sizes of the references differ. We'll | |
344 | // store such pairs and look them up later to make sure they | |
345 | // actually refer to the same lines of code. (Note: not all ODR | |
346 | // violations can be found this way, and not everything this finds | |
347 | // is an ODR violation. But it's helpful to warn about.) | |
d491d34e | 348 | bool to_is_ordinary; |
8851ecca | 349 | if (parameters->options().detect_odr_violations() |
d491d34e | 350 | && sym.get_st_bind() == elfcpp::STB_WEAK |
70e654ba | 351 | && to->binding() == elfcpp::STB_WEAK |
d491d34e ILT |
352 | && orig_st_shndx != elfcpp::SHN_UNDEF |
353 | && to->shndx(&to_is_ordinary) != elfcpp::SHN_UNDEF | |
354 | && to_is_ordinary | |
355 | && sym.get_st_size() != 0 // Ignore weird 0-sized symbols. | |
70e654ba | 356 | && to->symsize() != 0 |
d491d34e ILT |
357 | && (sym.get_st_type() != to->type() |
358 | || sym.get_st_size() != to->symsize()) | |
70e654ba ILT |
359 | // C does not have a concept of ODR, so we only need to do this |
360 | // on C++ symbols. These have (mangled) names starting with _Z. | |
361 | && to->name()[0] == '_' && to->name()[1] == 'Z') | |
362 | { | |
a2b1aa12 | 363 | Symbol_location fromloc |
d491d34e ILT |
364 | = { object, orig_st_shndx, sym.get_st_value() }; |
365 | Symbol_location toloc = { to->object(), to->shndx(&to_is_ordinary), | |
366 | to->value() }; | |
a2b1aa12 ILT |
367 | this->candidate_odr_violations_[to->name()].insert(fromloc); |
368 | this->candidate_odr_violations_[to->name()].insert(toloc); | |
70e654ba | 369 | } |
86f2e683 ILT |
370 | } |
371 | ||
372 | // Handle the core of symbol resolution. This is called with the | |
373 | // existing symbol, TO, and a bitflag describing the new symbol. This | |
374 | // returns true if we should override the existing symbol with the new | |
375 | // one, and returns false otherwise. It sets *ADJUST_COMMON_SIZES to | |
376 | // true if we should set the symbol size to the maximum of the TO and | |
377 | // FROM sizes. It handles error conditions. | |
378 | ||
379 | bool | |
380 | Symbol_table::should_override(const Symbol* to, unsigned int frombits, | |
99fff23b ILT |
381 | Defined defined, Object* object, |
382 | bool* adjust_common_sizes) | |
86f2e683 ILT |
383 | { |
384 | *adjust_common_sizes = false; | |
385 | ||
e5756efb | 386 | unsigned int tobits; |
f3e9c5c5 ILT |
387 | if (to->source() == Symbol::IS_UNDEFINED) |
388 | tobits = symbol_to_bits(to->binding(), false, elfcpp::SHN_UNDEF, true, | |
389 | to->type()); | |
390 | else if (to->source() != Symbol::FROM_OBJECT) | |
d491d34e | 391 | tobits = symbol_to_bits(to->binding(), false, elfcpp::SHN_ABS, false, |
e5756efb ILT |
392 | to->type()); |
393 | else | |
d491d34e ILT |
394 | { |
395 | bool is_ordinary; | |
396 | unsigned int shndx = to->shndx(&is_ordinary); | |
397 | tobits = symbol_to_bits(to->binding(), | |
398 | to->object()->is_dynamic(), | |
399 | shndx, | |
400 | is_ordinary, | |
401 | to->type()); | |
402 | } | |
14bfc3f5 | 403 | |
1564db8d ILT |
404 | // FIXME: Warn if either but not both of TO and SYM are STT_TLS. |
405 | ||
14bfc3f5 ILT |
406 | // We use a giant switch table for symbol resolution. This code is |
407 | // unwieldy, but: 1) it is efficient; 2) we definitely handle all | |
408 | // cases; 3) it is easy to change the handling of a particular case. | |
409 | // The alternative would be a series of conditionals, but it is easy | |
410 | // to get the ordering wrong. This could also be done as a table, | |
411 | // but that is no easier to understand than this large switch | |
412 | // statement. | |
413 | ||
86f2e683 ILT |
414 | // These are the values generated by the bit codes. |
415 | enum | |
416 | { | |
417 | DEF = global_flag | regular_flag | def_flag, | |
418 | WEAK_DEF = weak_flag | regular_flag | def_flag, | |
419 | DYN_DEF = global_flag | dynamic_flag | def_flag, | |
420 | DYN_WEAK_DEF = weak_flag | dynamic_flag | def_flag, | |
421 | UNDEF = global_flag | regular_flag | undef_flag, | |
422 | WEAK_UNDEF = weak_flag | regular_flag | undef_flag, | |
423 | DYN_UNDEF = global_flag | dynamic_flag | undef_flag, | |
424 | DYN_WEAK_UNDEF = weak_flag | dynamic_flag | undef_flag, | |
425 | COMMON = global_flag | regular_flag | common_flag, | |
426 | WEAK_COMMON = weak_flag | regular_flag | common_flag, | |
427 | DYN_COMMON = global_flag | dynamic_flag | common_flag, | |
428 | DYN_WEAK_COMMON = weak_flag | dynamic_flag | common_flag | |
429 | }; | |
430 | ||
14bfc3f5 ILT |
431 | switch (tobits * 16 + frombits) |
432 | { | |
433 | case DEF * 16 + DEF: | |
12e14209 | 434 | // Two definitions of the same symbol. |
878405a8 ILT |
435 | |
436 | // If either symbol is defined by an object included using | |
437 | // --just-symbols, then don't warn. This is for compatibility | |
438 | // with the GNU linker. FIXME: This is a hack. | |
439 | if ((to->source() == Symbol::FROM_OBJECT && to->object()->just_symbols()) | |
99fff23b | 440 | || (object != NULL && object->just_symbols())) |
878405a8 ILT |
441 | return false; |
442 | ||
1ae4d23b ILT |
443 | Symbol_table::report_resolve_problem(true, |
444 | _("multiple definition of '%s'"), | |
99fff23b | 445 | to, defined, object); |
86f2e683 | 446 | return false; |
14bfc3f5 ILT |
447 | |
448 | case WEAK_DEF * 16 + DEF: | |
1564db8d ILT |
449 | // We've seen a weak definition, and now we see a strong |
450 | // definition. In the original SVR4 linker, this was treated as | |
451 | // a multiple definition error. In the Solaris linker and the | |
452 | // GNU linker, a weak definition followed by a regular | |
453 | // definition causes the weak definition to be overridden. We | |
454 | // are currently compatible with the GNU linker. In the future | |
455 | // we should add a target specific option to change this. | |
456 | // FIXME. | |
86f2e683 | 457 | return true; |
14bfc3f5 ILT |
458 | |
459 | case DYN_DEF * 16 + DEF: | |
460 | case DYN_WEAK_DEF * 16 + DEF: | |
1564db8d ILT |
461 | // We've seen a definition in a dynamic object, and now we see a |
462 | // definition in a regular object. The definition in the | |
463 | // regular object overrides the definition in the dynamic | |
464 | // object. | |
86f2e683 | 465 | return true; |
1564db8d | 466 | |
14bfc3f5 ILT |
467 | case UNDEF * 16 + DEF: |
468 | case WEAK_UNDEF * 16 + DEF: | |
469 | case DYN_UNDEF * 16 + DEF: | |
470 | case DYN_WEAK_UNDEF * 16 + DEF: | |
1564db8d ILT |
471 | // We've seen an undefined reference, and now we see a |
472 | // definition. We use the definition. | |
86f2e683 | 473 | return true; |
1564db8d | 474 | |
14bfc3f5 ILT |
475 | case COMMON * 16 + DEF: |
476 | case WEAK_COMMON * 16 + DEF: | |
477 | case DYN_COMMON * 16 + DEF: | |
478 | case DYN_WEAK_COMMON * 16 + DEF: | |
1564db8d | 479 | // We've seen a common symbol and now we see a definition. The |
1ae4d23b ILT |
480 | // definition overrides. |
481 | if (parameters->options().warn_common()) | |
482 | Symbol_table::report_resolve_problem(false, | |
483 | _("definition of '%s' overriding " | |
484 | "common"), | |
99fff23b | 485 | to, defined, object); |
86f2e683 | 486 | return true; |
14bfc3f5 ILT |
487 | |
488 | case DEF * 16 + WEAK_DEF: | |
489 | case WEAK_DEF * 16 + WEAK_DEF: | |
1564db8d ILT |
490 | // We've seen a definition and now we see a weak definition. We |
491 | // ignore the new weak definition. | |
86f2e683 | 492 | return false; |
1564db8d | 493 | |
14bfc3f5 ILT |
494 | case DYN_DEF * 16 + WEAK_DEF: |
495 | case DYN_WEAK_DEF * 16 + WEAK_DEF: | |
1564db8d ILT |
496 | // We've seen a dynamic definition and now we see a regular weak |
497 | // definition. The regular weak definition overrides. | |
86f2e683 | 498 | return true; |
1564db8d | 499 | |
14bfc3f5 ILT |
500 | case UNDEF * 16 + WEAK_DEF: |
501 | case WEAK_UNDEF * 16 + WEAK_DEF: | |
502 | case DYN_UNDEF * 16 + WEAK_DEF: | |
503 | case DYN_WEAK_UNDEF * 16 + WEAK_DEF: | |
1564db8d | 504 | // A weak definition of a currently undefined symbol. |
86f2e683 | 505 | return true; |
1564db8d | 506 | |
14bfc3f5 ILT |
507 | case COMMON * 16 + WEAK_DEF: |
508 | case WEAK_COMMON * 16 + WEAK_DEF: | |
1564db8d | 509 | // A weak definition does not override a common definition. |
86f2e683 | 510 | return false; |
1564db8d | 511 | |
14bfc3f5 ILT |
512 | case DYN_COMMON * 16 + WEAK_DEF: |
513 | case DYN_WEAK_COMMON * 16 + WEAK_DEF: | |
1564db8d | 514 | // A weak definition does override a definition in a dynamic |
1ae4d23b ILT |
515 | // object. |
516 | if (parameters->options().warn_common()) | |
517 | Symbol_table::report_resolve_problem(false, | |
518 | _("definition of '%s' overriding " | |
519 | "dynamic common definition"), | |
99fff23b | 520 | to, defined, object); |
86f2e683 | 521 | return true; |
14bfc3f5 ILT |
522 | |
523 | case DEF * 16 + DYN_DEF: | |
524 | case WEAK_DEF * 16 + DYN_DEF: | |
525 | case DYN_DEF * 16 + DYN_DEF: | |
526 | case DYN_WEAK_DEF * 16 + DYN_DEF: | |
1564db8d | 527 | // Ignore a dynamic definition if we already have a definition. |
86f2e683 | 528 | return false; |
1564db8d | 529 | |
14bfc3f5 ILT |
530 | case UNDEF * 16 + DYN_DEF: |
531 | case WEAK_UNDEF * 16 + DYN_DEF: | |
532 | case DYN_UNDEF * 16 + DYN_DEF: | |
533 | case DYN_WEAK_UNDEF * 16 + DYN_DEF: | |
1564db8d | 534 | // Use a dynamic definition if we have a reference. |
86f2e683 | 535 | return true; |
1564db8d | 536 | |
14bfc3f5 ILT |
537 | case COMMON * 16 + DYN_DEF: |
538 | case WEAK_COMMON * 16 + DYN_DEF: | |
539 | case DYN_COMMON * 16 + DYN_DEF: | |
540 | case DYN_WEAK_COMMON * 16 + DYN_DEF: | |
1564db8d ILT |
541 | // Ignore a dynamic definition if we already have a common |
542 | // definition. | |
86f2e683 | 543 | return false; |
14bfc3f5 ILT |
544 | |
545 | case DEF * 16 + DYN_WEAK_DEF: | |
546 | case WEAK_DEF * 16 + DYN_WEAK_DEF: | |
547 | case DYN_DEF * 16 + DYN_WEAK_DEF: | |
548 | case DYN_WEAK_DEF * 16 + DYN_WEAK_DEF: | |
1564db8d ILT |
549 | // Ignore a weak dynamic definition if we already have a |
550 | // definition. | |
86f2e683 | 551 | return false; |
1564db8d | 552 | |
14bfc3f5 ILT |
553 | case UNDEF * 16 + DYN_WEAK_DEF: |
554 | case WEAK_UNDEF * 16 + DYN_WEAK_DEF: | |
555 | case DYN_UNDEF * 16 + DYN_WEAK_DEF: | |
556 | case DYN_WEAK_UNDEF * 16 + DYN_WEAK_DEF: | |
1564db8d | 557 | // Use a weak dynamic definition if we have a reference. |
86f2e683 | 558 | return true; |
1564db8d | 559 | |
14bfc3f5 ILT |
560 | case COMMON * 16 + DYN_WEAK_DEF: |
561 | case WEAK_COMMON * 16 + DYN_WEAK_DEF: | |
562 | case DYN_COMMON * 16 + DYN_WEAK_DEF: | |
563 | case DYN_WEAK_COMMON * 16 + DYN_WEAK_DEF: | |
1564db8d ILT |
564 | // Ignore a weak dynamic definition if we already have a common |
565 | // definition. | |
86f2e683 | 566 | return false; |
14bfc3f5 ILT |
567 | |
568 | case DEF * 16 + UNDEF: | |
569 | case WEAK_DEF * 16 + UNDEF: | |
570 | case DYN_DEF * 16 + UNDEF: | |
571 | case DYN_WEAK_DEF * 16 + UNDEF: | |
572 | case UNDEF * 16 + UNDEF: | |
ead1e424 | 573 | // A new undefined reference tells us nothing. |
86f2e683 | 574 | return false; |
ead1e424 | 575 | |
14bfc3f5 ILT |
576 | case WEAK_UNDEF * 16 + UNDEF: |
577 | case DYN_UNDEF * 16 + UNDEF: | |
578 | case DYN_WEAK_UNDEF * 16 + UNDEF: | |
ead1e424 | 579 | // A strong undef overrides a dynamic or weak undef. |
86f2e683 | 580 | return true; |
ead1e424 | 581 | |
14bfc3f5 ILT |
582 | case COMMON * 16 + UNDEF: |
583 | case WEAK_COMMON * 16 + UNDEF: | |
584 | case DYN_COMMON * 16 + UNDEF: | |
585 | case DYN_WEAK_COMMON * 16 + UNDEF: | |
1564db8d | 586 | // A new undefined reference tells us nothing. |
86f2e683 | 587 | return false; |
14bfc3f5 ILT |
588 | |
589 | case DEF * 16 + WEAK_UNDEF: | |
590 | case WEAK_DEF * 16 + WEAK_UNDEF: | |
591 | case DYN_DEF * 16 + WEAK_UNDEF: | |
592 | case DYN_WEAK_DEF * 16 + WEAK_UNDEF: | |
593 | case UNDEF * 16 + WEAK_UNDEF: | |
594 | case WEAK_UNDEF * 16 + WEAK_UNDEF: | |
595 | case DYN_UNDEF * 16 + WEAK_UNDEF: | |
596 | case DYN_WEAK_UNDEF * 16 + WEAK_UNDEF: | |
597 | case COMMON * 16 + WEAK_UNDEF: | |
598 | case WEAK_COMMON * 16 + WEAK_UNDEF: | |
599 | case DYN_COMMON * 16 + WEAK_UNDEF: | |
600 | case DYN_WEAK_COMMON * 16 + WEAK_UNDEF: | |
1564db8d | 601 | // A new weak undefined reference tells us nothing. |
86f2e683 | 602 | return false; |
14bfc3f5 ILT |
603 | |
604 | case DEF * 16 + DYN_UNDEF: | |
605 | case WEAK_DEF * 16 + DYN_UNDEF: | |
606 | case DYN_DEF * 16 + DYN_UNDEF: | |
607 | case DYN_WEAK_DEF * 16 + DYN_UNDEF: | |
608 | case UNDEF * 16 + DYN_UNDEF: | |
609 | case WEAK_UNDEF * 16 + DYN_UNDEF: | |
610 | case DYN_UNDEF * 16 + DYN_UNDEF: | |
611 | case DYN_WEAK_UNDEF * 16 + DYN_UNDEF: | |
612 | case COMMON * 16 + DYN_UNDEF: | |
613 | case WEAK_COMMON * 16 + DYN_UNDEF: | |
614 | case DYN_COMMON * 16 + DYN_UNDEF: | |
615 | case DYN_WEAK_COMMON * 16 + DYN_UNDEF: | |
1564db8d | 616 | // A new dynamic undefined reference tells us nothing. |
86f2e683 | 617 | return false; |
14bfc3f5 ILT |
618 | |
619 | case DEF * 16 + DYN_WEAK_UNDEF: | |
620 | case WEAK_DEF * 16 + DYN_WEAK_UNDEF: | |
621 | case DYN_DEF * 16 + DYN_WEAK_UNDEF: | |
622 | case DYN_WEAK_DEF * 16 + DYN_WEAK_UNDEF: | |
623 | case UNDEF * 16 + DYN_WEAK_UNDEF: | |
624 | case WEAK_UNDEF * 16 + DYN_WEAK_UNDEF: | |
625 | case DYN_UNDEF * 16 + DYN_WEAK_UNDEF: | |
626 | case DYN_WEAK_UNDEF * 16 + DYN_WEAK_UNDEF: | |
627 | case COMMON * 16 + DYN_WEAK_UNDEF: | |
628 | case WEAK_COMMON * 16 + DYN_WEAK_UNDEF: | |
629 | case DYN_COMMON * 16 + DYN_WEAK_UNDEF: | |
630 | case DYN_WEAK_COMMON * 16 + DYN_WEAK_UNDEF: | |
1564db8d | 631 | // A new weak dynamic undefined reference tells us nothing. |
86f2e683 | 632 | return false; |
14bfc3f5 ILT |
633 | |
634 | case DEF * 16 + COMMON: | |
1564db8d | 635 | // A common symbol does not override a definition. |
1ae4d23b ILT |
636 | if (parameters->options().warn_common()) |
637 | Symbol_table::report_resolve_problem(false, | |
638 | _("common '%s' overridden by " | |
639 | "previous definition"), | |
99fff23b | 640 | to, defined, object); |
86f2e683 | 641 | return false; |
1564db8d | 642 | |
14bfc3f5 ILT |
643 | case WEAK_DEF * 16 + COMMON: |
644 | case DYN_DEF * 16 + COMMON: | |
645 | case DYN_WEAK_DEF * 16 + COMMON: | |
1564db8d ILT |
646 | // A common symbol does override a weak definition or a dynamic |
647 | // definition. | |
86f2e683 | 648 | return true; |
1564db8d | 649 | |
14bfc3f5 ILT |
650 | case UNDEF * 16 + COMMON: |
651 | case WEAK_UNDEF * 16 + COMMON: | |
652 | case DYN_UNDEF * 16 + COMMON: | |
653 | case DYN_WEAK_UNDEF * 16 + COMMON: | |
1564db8d | 654 | // A common symbol is a definition for a reference. |
86f2e683 | 655 | return true; |
1564db8d | 656 | |
14bfc3f5 | 657 | case COMMON * 16 + COMMON: |
ead1e424 | 658 | // Set the size to the maximum. |
86f2e683 ILT |
659 | *adjust_common_sizes = true; |
660 | return false; | |
ead1e424 | 661 | |
14bfc3f5 | 662 | case WEAK_COMMON * 16 + COMMON: |
ead1e424 ILT |
663 | // I'm not sure just what a weak common symbol means, but |
664 | // presumably it can be overridden by a regular common symbol. | |
86f2e683 | 665 | return true; |
ead1e424 | 666 | |
14bfc3f5 ILT |
667 | case DYN_COMMON * 16 + COMMON: |
668 | case DYN_WEAK_COMMON * 16 + COMMON: | |
86f2e683 ILT |
669 | // Use the real common symbol, but adjust the size if necessary. |
670 | *adjust_common_sizes = true; | |
671 | return true; | |
14bfc3f5 ILT |
672 | |
673 | case DEF * 16 + WEAK_COMMON: | |
674 | case WEAK_DEF * 16 + WEAK_COMMON: | |
675 | case DYN_DEF * 16 + WEAK_COMMON: | |
676 | case DYN_WEAK_DEF * 16 + WEAK_COMMON: | |
ead1e424 ILT |
677 | // Whatever a weak common symbol is, it won't override a |
678 | // definition. | |
86f2e683 | 679 | return false; |
ead1e424 | 680 | |
14bfc3f5 ILT |
681 | case UNDEF * 16 + WEAK_COMMON: |
682 | case WEAK_UNDEF * 16 + WEAK_COMMON: | |
683 | case DYN_UNDEF * 16 + WEAK_COMMON: | |
684 | case DYN_WEAK_UNDEF * 16 + WEAK_COMMON: | |
ead1e424 | 685 | // A weak common symbol is better than an undefined symbol. |
86f2e683 | 686 | return true; |
ead1e424 | 687 | |
14bfc3f5 ILT |
688 | case COMMON * 16 + WEAK_COMMON: |
689 | case WEAK_COMMON * 16 + WEAK_COMMON: | |
690 | case DYN_COMMON * 16 + WEAK_COMMON: | |
691 | case DYN_WEAK_COMMON * 16 + WEAK_COMMON: | |
ead1e424 ILT |
692 | // Ignore a weak common symbol in the presence of a real common |
693 | // symbol. | |
86f2e683 | 694 | return false; |
14bfc3f5 ILT |
695 | |
696 | case DEF * 16 + DYN_COMMON: | |
697 | case WEAK_DEF * 16 + DYN_COMMON: | |
698 | case DYN_DEF * 16 + DYN_COMMON: | |
699 | case DYN_WEAK_DEF * 16 + DYN_COMMON: | |
ead1e424 ILT |
700 | // Ignore a dynamic common symbol in the presence of a |
701 | // definition. | |
86f2e683 | 702 | return false; |
ead1e424 | 703 | |
14bfc3f5 ILT |
704 | case UNDEF * 16 + DYN_COMMON: |
705 | case WEAK_UNDEF * 16 + DYN_COMMON: | |
706 | case DYN_UNDEF * 16 + DYN_COMMON: | |
707 | case DYN_WEAK_UNDEF * 16 + DYN_COMMON: | |
ead1e424 | 708 | // A dynamic common symbol is a definition of sorts. |
86f2e683 | 709 | return true; |
ead1e424 | 710 | |
14bfc3f5 ILT |
711 | case COMMON * 16 + DYN_COMMON: |
712 | case WEAK_COMMON * 16 + DYN_COMMON: | |
713 | case DYN_COMMON * 16 + DYN_COMMON: | |
714 | case DYN_WEAK_COMMON * 16 + DYN_COMMON: | |
ead1e424 | 715 | // Set the size to the maximum. |
86f2e683 ILT |
716 | *adjust_common_sizes = true; |
717 | return false; | |
14bfc3f5 ILT |
718 | |
719 | case DEF * 16 + DYN_WEAK_COMMON: | |
720 | case WEAK_DEF * 16 + DYN_WEAK_COMMON: | |
721 | case DYN_DEF * 16 + DYN_WEAK_COMMON: | |
722 | case DYN_WEAK_DEF * 16 + DYN_WEAK_COMMON: | |
ead1e424 | 723 | // A common symbol is ignored in the face of a definition. |
86f2e683 | 724 | return false; |
ead1e424 | 725 | |
14bfc3f5 ILT |
726 | case UNDEF * 16 + DYN_WEAK_COMMON: |
727 | case WEAK_UNDEF * 16 + DYN_WEAK_COMMON: | |
728 | case DYN_UNDEF * 16 + DYN_WEAK_COMMON: | |
729 | case DYN_WEAK_UNDEF * 16 + DYN_WEAK_COMMON: | |
ead1e424 | 730 | // I guess a weak common symbol is better than a definition. |
86f2e683 | 731 | return true; |
ead1e424 | 732 | |
14bfc3f5 ILT |
733 | case COMMON * 16 + DYN_WEAK_COMMON: |
734 | case WEAK_COMMON * 16 + DYN_WEAK_COMMON: | |
735 | case DYN_COMMON * 16 + DYN_WEAK_COMMON: | |
736 | case DYN_WEAK_COMMON * 16 + DYN_WEAK_COMMON: | |
ead1e424 | 737 | // Set the size to the maximum. |
86f2e683 ILT |
738 | *adjust_common_sizes = true; |
739 | return false; | |
1564db8d ILT |
740 | |
741 | default: | |
a3ad94ed | 742 | gold_unreachable(); |
14bfc3f5 ILT |
743 | } |
744 | } | |
745 | ||
1ae4d23b ILT |
746 | // Issue an error or warning due to symbol resolution. IS_ERROR |
747 | // indicates an error rather than a warning. MSG is the error | |
748 | // message; it is expected to have a %s for the symbol name. TO is | |
99fff23b ILT |
749 | // the existing symbol. DEFINED/OBJECT is where the new symbol was |
750 | // found. | |
1ae4d23b ILT |
751 | |
752 | // FIXME: We should have better location information here. When the | |
753 | // symbol is defined, we should be able to pull the location from the | |
754 | // debug info if there is any. | |
755 | ||
756 | void | |
757 | Symbol_table::report_resolve_problem(bool is_error, const char* msg, | |
99fff23b ILT |
758 | const Symbol* to, Defined defined, |
759 | Object* object) | |
1ae4d23b ILT |
760 | { |
761 | std::string demangled(to->demangled_name()); | |
762 | size_t len = strlen(msg) + demangled.length() + 10; | |
763 | char* buf = new char[len]; | |
764 | snprintf(buf, len, msg, demangled.c_str()); | |
765 | ||
766 | const char* objname; | |
99fff23b ILT |
767 | switch (defined) |
768 | { | |
769 | case OBJECT: | |
770 | objname = object->name().c_str(); | |
771 | break; | |
772 | case COPY: | |
773 | objname = _("COPY reloc"); | |
774 | break; | |
775 | case DEFSYM: | |
776 | case UNDEFINED: | |
777 | objname = _("command line"); | |
778 | break; | |
779 | case SCRIPT: | |
780 | objname = _("linker script"); | |
781 | break; | |
782 | case PREDEFINED: | |
783 | objname = _("linker defined"); | |
784 | break; | |
785 | default: | |
786 | gold_unreachable(); | |
787 | } | |
1ae4d23b ILT |
788 | |
789 | if (is_error) | |
790 | gold_error("%s: %s", objname, buf); | |
791 | else | |
792 | gold_warning("%s: %s", objname, buf); | |
793 | ||
794 | delete[] buf; | |
795 | ||
796 | if (to->source() == Symbol::FROM_OBJECT) | |
797 | objname = to->object()->name().c_str(); | |
798 | else | |
799 | objname = _("command line"); | |
800 | gold_info("%s: %s: previous definition here", program_name, objname); | |
801 | } | |
802 | ||
86f2e683 ILT |
803 | // A special case of should_override which is only called for a strong |
804 | // defined symbol from a regular object file. This is used when | |
805 | // defining special symbols. | |
806 | ||
807 | bool | |
99fff23b | 808 | Symbol_table::should_override_with_special(const Symbol* to, Defined defined) |
86f2e683 ILT |
809 | { |
810 | bool adjust_common_sizes; | |
811 | unsigned int frombits = global_flag | regular_flag | def_flag; | |
99fff23b | 812 | bool ret = Symbol_table::should_override(to, frombits, defined, NULL, |
d20222a1 | 813 | &adjust_common_sizes); |
86f2e683 ILT |
814 | gold_assert(!adjust_common_sizes); |
815 | return ret; | |
816 | } | |
817 | ||
818 | // Override symbol base with a special symbol. | |
819 | ||
820 | void | |
821 | Symbol::override_base_with_special(const Symbol* from) | |
822 | { | |
46fe1623 ILT |
823 | gold_assert(this->name_ == from->name_ || this->has_alias()); |
824 | ||
86f2e683 ILT |
825 | this->source_ = from->source_; |
826 | switch (from->source_) | |
827 | { | |
828 | case FROM_OBJECT: | |
829 | this->u_.from_object = from->u_.from_object; | |
830 | break; | |
831 | case IN_OUTPUT_DATA: | |
832 | this->u_.in_output_data = from->u_.in_output_data; | |
833 | break; | |
834 | case IN_OUTPUT_SEGMENT: | |
835 | this->u_.in_output_segment = from->u_.in_output_segment; | |
836 | break; | |
f3e9c5c5 ILT |
837 | case IS_CONSTANT: |
838 | case IS_UNDEFINED: | |
86f2e683 ILT |
839 | break; |
840 | default: | |
841 | gold_unreachable(); | |
842 | break; | |
843 | } | |
844 | ||
75517b77 | 845 | this->override_version(from->version_); |
86f2e683 ILT |
846 | this->type_ = from->type_; |
847 | this->binding_ = from->binding_; | |
0602e05a | 848 | this->override_visibility(from->visibility_); |
86f2e683 ILT |
849 | this->nonvis_ = from->nonvis_; |
850 | ||
851 | // Special symbols are always considered to be regular symbols. | |
852 | this->in_reg_ = true; | |
46fe1623 ILT |
853 | |
854 | if (from->needs_dynsym_entry_) | |
855 | this->needs_dynsym_entry_ = true; | |
856 | if (from->needs_dynsym_value_) | |
857 | this->needs_dynsym_value_ = true; | |
858 | ||
859 | // We shouldn't see these flags. If we do, we need to handle them | |
860 | // somehow. | |
861 | gold_assert(!from->is_target_special_ || this->is_target_special_); | |
862 | gold_assert(!from->is_forwarder_); | |
46fe1623 ILT |
863 | gold_assert(!from->has_plt_offset_); |
864 | gold_assert(!from->has_warning_); | |
865 | gold_assert(!from->is_copied_from_dynobj_); | |
55a93433 | 866 | gold_assert(!from->is_forced_local_); |
86f2e683 ILT |
867 | } |
868 | ||
869 | // Override a symbol with a special symbol. | |
870 | ||
871 | template<int size> | |
872 | void | |
873 | Sized_symbol<size>::override_with_special(const Sized_symbol<size>* from) | |
874 | { | |
875 | this->override_base_with_special(from); | |
876 | this->value_ = from->value_; | |
877 | this->symsize_ = from->symsize_; | |
878 | } | |
879 | ||
aeddab66 ILT |
880 | // Override TOSYM with the special symbol FROMSYM. This handles all |
881 | // aliases of TOSYM. | |
882 | ||
883 | template<int size> | |
884 | void | |
885 | Symbol_table::override_with_special(Sized_symbol<size>* tosym, | |
886 | const Sized_symbol<size>* fromsym) | |
887 | { | |
888 | tosym->override_with_special(fromsym); | |
889 | if (tosym->has_alias()) | |
890 | { | |
891 | Symbol* sym = this->weak_aliases_[tosym]; | |
892 | gold_assert(sym != NULL); | |
7d1a9ebb | 893 | Sized_symbol<size>* ssym = this->get_sized_symbol<size>(sym); |
aeddab66 ILT |
894 | do |
895 | { | |
896 | ssym->override_with_special(fromsym); | |
897 | sym = this->weak_aliases_[ssym]; | |
898 | gold_assert(sym != NULL); | |
7d1a9ebb | 899 | ssym = this->get_sized_symbol<size>(sym); |
aeddab66 ILT |
900 | } |
901 | while (ssym != tosym); | |
902 | } | |
0602e05a ILT |
903 | if (tosym->binding() == elfcpp::STB_LOCAL |
904 | || ((tosym->visibility() == elfcpp::STV_HIDDEN | |
905 | || tosym->visibility() == elfcpp::STV_INTERNAL) | |
906 | && (tosym->binding() == elfcpp::STB_GLOBAL | |
adcf2816 | 907 | || tosym->binding() == elfcpp::STB_GNU_UNIQUE |
0602e05a ILT |
908 | || tosym->binding() == elfcpp::STB_WEAK) |
909 | && !parameters->options().relocatable())) | |
55a93433 | 910 | this->force_local(tosym); |
aeddab66 ILT |
911 | } |
912 | ||
14bfc3f5 ILT |
913 | // Instantiate the templates we need. We could use the configure |
914 | // script to restrict this to only the ones needed for implemented | |
915 | // targets. | |
916 | ||
193a53d9 | 917 | #ifdef HAVE_TARGET_32_LITTLE |
14bfc3f5 ILT |
918 | template |
919 | void | |
193a53d9 | 920 | Symbol_table::resolve<32, false>( |
1564db8d | 921 | Sized_symbol<32>* to, |
193a53d9 | 922 | const elfcpp::Sym<32, false>& sym, |
d491d34e ILT |
923 | unsigned int st_shndx, |
924 | bool is_ordinary, | |
925 | unsigned int orig_st_shndx, | |
14b31740 ILT |
926 | Object* object, |
927 | const char* version); | |
193a53d9 | 928 | #endif |
14bfc3f5 | 929 | |
193a53d9 | 930 | #ifdef HAVE_TARGET_32_BIG |
14bfc3f5 ILT |
931 | template |
932 | void | |
193a53d9 | 933 | Symbol_table::resolve<32, true>( |
1564db8d | 934 | Sized_symbol<32>* to, |
193a53d9 | 935 | const elfcpp::Sym<32, true>& sym, |
d491d34e ILT |
936 | unsigned int st_shndx, |
937 | bool is_ordinary, | |
938 | unsigned int orig_st_shndx, | |
14b31740 ILT |
939 | Object* object, |
940 | const char* version); | |
193a53d9 | 941 | #endif |
14bfc3f5 | 942 | |
193a53d9 | 943 | #ifdef HAVE_TARGET_64_LITTLE |
14bfc3f5 ILT |
944 | template |
945 | void | |
193a53d9 | 946 | Symbol_table::resolve<64, false>( |
1564db8d | 947 | Sized_symbol<64>* to, |
193a53d9 | 948 | const elfcpp::Sym<64, false>& sym, |
d491d34e ILT |
949 | unsigned int st_shndx, |
950 | bool is_ordinary, | |
951 | unsigned int orig_st_shndx, | |
14b31740 ILT |
952 | Object* object, |
953 | const char* version); | |
193a53d9 | 954 | #endif |
14bfc3f5 | 955 | |
193a53d9 | 956 | #ifdef HAVE_TARGET_64_BIG |
14bfc3f5 ILT |
957 | template |
958 | void | |
193a53d9 | 959 | Symbol_table::resolve<64, true>( |
1564db8d | 960 | Sized_symbol<64>* to, |
193a53d9 | 961 | const elfcpp::Sym<64, true>& sym, |
d491d34e ILT |
962 | unsigned int st_shndx, |
963 | bool is_ordinary, | |
964 | unsigned int orig_st_shndx, | |
14b31740 ILT |
965 | Object* object, |
966 | const char* version); | |
193a53d9 | 967 | #endif |
14bfc3f5 | 968 | |
86f2e683 ILT |
969 | #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG) |
970 | template | |
971 | void | |
aeddab66 ILT |
972 | Symbol_table::override_with_special<32>(Sized_symbol<32>*, |
973 | const Sized_symbol<32>*); | |
86f2e683 ILT |
974 | #endif |
975 | ||
976 | #if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG) | |
977 | template | |
978 | void | |
aeddab66 ILT |
979 | Symbol_table::override_with_special<64>(Sized_symbol<64>*, |
980 | const Sized_symbol<64>*); | |
86f2e683 ILT |
981 | #endif |
982 | ||
14bfc3f5 | 983 | } // End namespace gold. |