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14bfc3f5 ILT |
1 | // symtab.cc -- the gold symbol table |
2 | ||
3 | #include "gold.h" | |
4 | ||
14bfc3f5 ILT |
5 | #include <stdint.h> |
6 | #include <string> | |
7 | #include <utility> | |
8 | ||
9 | #include "object.h" | |
dbe717ef | 10 | #include "dynobj.h" |
75f65a3e | 11 | #include "output.h" |
61ba1cf9 | 12 | #include "target.h" |
645f8123 | 13 | #include "workqueue.h" |
14bfc3f5 ILT |
14 | #include "symtab.h" |
15 | ||
16 | namespace gold | |
17 | { | |
18 | ||
19 | // Class Symbol. | |
20 | ||
ead1e424 ILT |
21 | // Initialize fields in Symbol. This initializes everything except u_ |
22 | // and source_. | |
14bfc3f5 | 23 | |
14bfc3f5 | 24 | void |
ead1e424 ILT |
25 | Symbol::init_fields(const char* name, const char* version, |
26 | elfcpp::STT type, elfcpp::STB binding, | |
27 | elfcpp::STV visibility, unsigned char nonvis) | |
14bfc3f5 ILT |
28 | { |
29 | this->name_ = name; | |
30 | this->version_ = version; | |
c06b7b0b ILT |
31 | this->symtab_index_ = 0; |
32 | this->dynsym_index_ = 0; | |
ead1e424 | 33 | this->got_offset_ = 0; |
f4151f89 | 34 | this->plt_offset_ = 0; |
ead1e424 ILT |
35 | this->type_ = type; |
36 | this->binding_ = binding; | |
37 | this->visibility_ = visibility; | |
38 | this->nonvis_ = nonvis; | |
39 | this->is_target_special_ = false; | |
1564db8d ILT |
40 | this->is_def_ = false; |
41 | this->is_forwarder_ = false; | |
c06b7b0b | 42 | this->needs_dynsym_entry_ = false; |
008db82e | 43 | this->in_reg_ = false; |
ead1e424 ILT |
44 | this->in_dyn_ = false; |
45 | this->has_got_offset_ = false; | |
f4151f89 | 46 | this->has_plt_offset_ = false; |
f6ce93d6 | 47 | this->has_warning_ = false; |
ead1e424 ILT |
48 | } |
49 | ||
50 | // Initialize the fields in the base class Symbol for SYM in OBJECT. | |
51 | ||
52 | template<int size, bool big_endian> | |
53 | void | |
54 | Symbol::init_base(const char* name, const char* version, Object* object, | |
55 | const elfcpp::Sym<size, big_endian>& sym) | |
56 | { | |
57 | this->init_fields(name, version, sym.get_st_type(), sym.get_st_bind(), | |
58 | sym.get_st_visibility(), sym.get_st_nonvis()); | |
59 | this->u_.from_object.object = object; | |
60 | // FIXME: Handle SHN_XINDEX. | |
16649710 | 61 | this->u_.from_object.shndx = sym.get_st_shndx(); |
ead1e424 | 62 | this->source_ = FROM_OBJECT; |
008db82e | 63 | this->in_reg_ = !object->is_dynamic(); |
1564db8d | 64 | this->in_dyn_ = object->is_dynamic(); |
14bfc3f5 ILT |
65 | } |
66 | ||
ead1e424 ILT |
67 | // Initialize the fields in the base class Symbol for a symbol defined |
68 | // in an Output_data. | |
69 | ||
70 | void | |
71 | Symbol::init_base(const char* name, Output_data* od, elfcpp::STT type, | |
72 | elfcpp::STB binding, elfcpp::STV visibility, | |
73 | unsigned char nonvis, bool offset_is_from_end) | |
74 | { | |
75 | this->init_fields(name, NULL, type, binding, visibility, nonvis); | |
76 | this->u_.in_output_data.output_data = od; | |
77 | this->u_.in_output_data.offset_is_from_end = offset_is_from_end; | |
78 | this->source_ = IN_OUTPUT_DATA; | |
008db82e | 79 | this->in_reg_ = true; |
ead1e424 ILT |
80 | } |
81 | ||
82 | // Initialize the fields in the base class Symbol for a symbol defined | |
83 | // in an Output_segment. | |
84 | ||
85 | void | |
86 | Symbol::init_base(const char* name, Output_segment* os, elfcpp::STT type, | |
87 | elfcpp::STB binding, elfcpp::STV visibility, | |
88 | unsigned char nonvis, Segment_offset_base offset_base) | |
89 | { | |
90 | this->init_fields(name, NULL, type, binding, visibility, nonvis); | |
91 | this->u_.in_output_segment.output_segment = os; | |
92 | this->u_.in_output_segment.offset_base = offset_base; | |
93 | this->source_ = IN_OUTPUT_SEGMENT; | |
008db82e | 94 | this->in_reg_ = true; |
ead1e424 ILT |
95 | } |
96 | ||
97 | // Initialize the fields in the base class Symbol for a symbol defined | |
98 | // as a constant. | |
99 | ||
100 | void | |
101 | Symbol::init_base(const char* name, elfcpp::STT type, | |
102 | elfcpp::STB binding, elfcpp::STV visibility, | |
103 | unsigned char nonvis) | |
104 | { | |
105 | this->init_fields(name, NULL, type, binding, visibility, nonvis); | |
106 | this->source_ = CONSTANT; | |
008db82e | 107 | this->in_reg_ = true; |
ead1e424 ILT |
108 | } |
109 | ||
110 | // Initialize the fields in Sized_symbol for SYM in OBJECT. | |
14bfc3f5 ILT |
111 | |
112 | template<int size> | |
113 | template<bool big_endian> | |
114 | void | |
115 | Sized_symbol<size>::init(const char* name, const char* version, Object* object, | |
116 | const elfcpp::Sym<size, big_endian>& sym) | |
117 | { | |
118 | this->init_base(name, version, object, sym); | |
119 | this->value_ = sym.get_st_value(); | |
ead1e424 ILT |
120 | this->symsize_ = sym.get_st_size(); |
121 | } | |
122 | ||
123 | // Initialize the fields in Sized_symbol for a symbol defined in an | |
124 | // Output_data. | |
125 | ||
126 | template<int size> | |
127 | void | |
128 | Sized_symbol<size>::init(const char* name, Output_data* od, | |
129 | Value_type value, Size_type symsize, | |
130 | elfcpp::STT type, elfcpp::STB binding, | |
131 | elfcpp::STV visibility, unsigned char nonvis, | |
132 | bool offset_is_from_end) | |
133 | { | |
134 | this->init_base(name, od, type, binding, visibility, nonvis, | |
135 | offset_is_from_end); | |
136 | this->value_ = value; | |
137 | this->symsize_ = symsize; | |
138 | } | |
139 | ||
140 | // Initialize the fields in Sized_symbol for a symbol defined in an | |
141 | // Output_segment. | |
142 | ||
143 | template<int size> | |
144 | void | |
145 | Sized_symbol<size>::init(const char* name, Output_segment* os, | |
146 | Value_type value, Size_type symsize, | |
147 | elfcpp::STT type, elfcpp::STB binding, | |
148 | elfcpp::STV visibility, unsigned char nonvis, | |
149 | Segment_offset_base offset_base) | |
150 | { | |
151 | this->init_base(name, os, type, binding, visibility, nonvis, offset_base); | |
152 | this->value_ = value; | |
153 | this->symsize_ = symsize; | |
154 | } | |
155 | ||
156 | // Initialize the fields in Sized_symbol for a symbol defined as a | |
157 | // constant. | |
158 | ||
159 | template<int size> | |
160 | void | |
161 | Sized_symbol<size>::init(const char* name, Value_type value, Size_type symsize, | |
162 | elfcpp::STT type, elfcpp::STB binding, | |
163 | elfcpp::STV visibility, unsigned char nonvis) | |
164 | { | |
165 | this->init_base(name, type, binding, visibility, nonvis); | |
166 | this->value_ = value; | |
167 | this->symsize_ = symsize; | |
14bfc3f5 ILT |
168 | } |
169 | ||
170 | // Class Symbol_table. | |
171 | ||
172 | Symbol_table::Symbol_table() | |
ead1e424 | 173 | : size_(0), saw_undefined_(0), offset_(0), table_(), namepool_(), |
f6ce93d6 | 174 | forwarders_(), commons_(), warnings_() |
14bfc3f5 ILT |
175 | { |
176 | } | |
177 | ||
178 | Symbol_table::~Symbol_table() | |
179 | { | |
180 | } | |
181 | ||
182 | // The hash function. The key is always canonicalized, so we use a | |
183 | // simple combination of the pointers. | |
184 | ||
185 | size_t | |
186 | Symbol_table::Symbol_table_hash::operator()(const Symbol_table_key& key) const | |
187 | { | |
f0641a0b | 188 | return key.first ^ key.second; |
14bfc3f5 ILT |
189 | } |
190 | ||
191 | // The symbol table key equality function. This is only called with | |
192 | // canonicalized name and version strings, so we can use pointer | |
193 | // comparison. | |
194 | ||
195 | bool | |
196 | Symbol_table::Symbol_table_eq::operator()(const Symbol_table_key& k1, | |
197 | const Symbol_table_key& k2) const | |
198 | { | |
199 | return k1.first == k2.first && k1.second == k2.second; | |
200 | } | |
201 | ||
202 | // Make TO a symbol which forwards to FROM. | |
203 | ||
204 | void | |
205 | Symbol_table::make_forwarder(Symbol* from, Symbol* to) | |
206 | { | |
a3ad94ed ILT |
207 | gold_assert(from != to); |
208 | gold_assert(!from->is_forwarder() && !to->is_forwarder()); | |
14bfc3f5 ILT |
209 | this->forwarders_[from] = to; |
210 | from->set_forwarder(); | |
211 | } | |
212 | ||
61ba1cf9 ILT |
213 | // Resolve the forwards from FROM, returning the real symbol. |
214 | ||
14bfc3f5 | 215 | Symbol* |
c06b7b0b | 216 | Symbol_table::resolve_forwards(const Symbol* from) const |
14bfc3f5 | 217 | { |
a3ad94ed | 218 | gold_assert(from->is_forwarder()); |
c06b7b0b | 219 | Unordered_map<const Symbol*, Symbol*>::const_iterator p = |
14bfc3f5 | 220 | this->forwarders_.find(from); |
a3ad94ed | 221 | gold_assert(p != this->forwarders_.end()); |
14bfc3f5 ILT |
222 | return p->second; |
223 | } | |
224 | ||
61ba1cf9 ILT |
225 | // Look up a symbol by name. |
226 | ||
227 | Symbol* | |
228 | Symbol_table::lookup(const char* name, const char* version) const | |
229 | { | |
f0641a0b ILT |
230 | Stringpool::Key name_key; |
231 | name = this->namepool_.find(name, &name_key); | |
61ba1cf9 ILT |
232 | if (name == NULL) |
233 | return NULL; | |
f0641a0b ILT |
234 | |
235 | Stringpool::Key version_key = 0; | |
61ba1cf9 ILT |
236 | if (version != NULL) |
237 | { | |
f0641a0b | 238 | version = this->namepool_.find(version, &version_key); |
61ba1cf9 ILT |
239 | if (version == NULL) |
240 | return NULL; | |
241 | } | |
242 | ||
f0641a0b | 243 | Symbol_table_key key(name_key, version_key); |
61ba1cf9 ILT |
244 | Symbol_table::Symbol_table_type::const_iterator p = this->table_.find(key); |
245 | if (p == this->table_.end()) | |
246 | return NULL; | |
247 | return p->second; | |
248 | } | |
249 | ||
14bfc3f5 ILT |
250 | // Resolve a Symbol with another Symbol. This is only used in the |
251 | // unusual case where there are references to both an unversioned | |
252 | // symbol and a symbol with a version, and we then discover that that | |
1564db8d ILT |
253 | // version is the default version. Because this is unusual, we do |
254 | // this the slow way, by converting back to an ELF symbol. | |
14bfc3f5 | 255 | |
1564db8d | 256 | template<int size, bool big_endian> |
14bfc3f5 | 257 | void |
14b31740 ILT |
258 | Symbol_table::resolve(Sized_symbol<size>* to, const Sized_symbol<size>* from, |
259 | const char* version ACCEPT_SIZE_ENDIAN) | |
14bfc3f5 | 260 | { |
1564db8d ILT |
261 | unsigned char buf[elfcpp::Elf_sizes<size>::sym_size]; |
262 | elfcpp::Sym_write<size, big_endian> esym(buf); | |
263 | // We don't bother to set the st_name field. | |
264 | esym.put_st_value(from->value()); | |
265 | esym.put_st_size(from->symsize()); | |
266 | esym.put_st_info(from->binding(), from->type()); | |
ead1e424 | 267 | esym.put_st_other(from->visibility(), from->nonvis()); |
16649710 | 268 | esym.put_st_shndx(from->shndx()); |
14b31740 | 269 | Symbol_table::resolve(to, esym.sym(), from->object(), version); |
1ebd95fd ILT |
270 | if (from->in_reg()) |
271 | to->set_in_reg(); | |
272 | if (from->in_dyn()) | |
273 | to->set_in_dyn(); | |
14bfc3f5 ILT |
274 | } |
275 | ||
276 | // Add one symbol from OBJECT to the symbol table. NAME is symbol | |
277 | // name and VERSION is the version; both are canonicalized. DEF is | |
278 | // whether this is the default version. | |
279 | ||
280 | // If DEF is true, then this is the definition of a default version of | |
281 | // a symbol. That means that any lookup of NAME/NULL and any lookup | |
282 | // of NAME/VERSION should always return the same symbol. This is | |
283 | // obvious for references, but in particular we want to do this for | |
284 | // definitions: overriding NAME/NULL should also override | |
285 | // NAME/VERSION. If we don't do that, it would be very hard to | |
286 | // override functions in a shared library which uses versioning. | |
287 | ||
288 | // We implement this by simply making both entries in the hash table | |
289 | // point to the same Symbol structure. That is easy enough if this is | |
290 | // the first time we see NAME/NULL or NAME/VERSION, but it is possible | |
291 | // that we have seen both already, in which case they will both have | |
292 | // independent entries in the symbol table. We can't simply change | |
293 | // the symbol table entry, because we have pointers to the entries | |
294 | // attached to the object files. So we mark the entry attached to the | |
295 | // object file as a forwarder, and record it in the forwarders_ map. | |
296 | // Note that entries in the hash table will never be marked as | |
297 | // forwarders. | |
298 | ||
299 | template<int size, bool big_endian> | |
300 | Symbol* | |
f6ce93d6 | 301 | Symbol_table::add_from_object(Object* object, |
14bfc3f5 | 302 | const char *name, |
f0641a0b ILT |
303 | Stringpool::Key name_key, |
304 | const char *version, | |
305 | Stringpool::Key version_key, | |
306 | bool def, | |
14bfc3f5 ILT |
307 | const elfcpp::Sym<size, big_endian>& sym) |
308 | { | |
309 | Symbol* const snull = NULL; | |
310 | std::pair<typename Symbol_table_type::iterator, bool> ins = | |
f0641a0b ILT |
311 | this->table_.insert(std::make_pair(std::make_pair(name_key, version_key), |
312 | snull)); | |
14bfc3f5 ILT |
313 | |
314 | std::pair<typename Symbol_table_type::iterator, bool> insdef = | |
315 | std::make_pair(this->table_.end(), false); | |
316 | if (def) | |
317 | { | |
f0641a0b ILT |
318 | const Stringpool::Key vnull_key = 0; |
319 | insdef = this->table_.insert(std::make_pair(std::make_pair(name_key, | |
320 | vnull_key), | |
14bfc3f5 ILT |
321 | snull)); |
322 | } | |
323 | ||
324 | // ins.first: an iterator, which is a pointer to a pair. | |
325 | // ins.first->first: the key (a pair of name and version). | |
326 | // ins.first->second: the value (Symbol*). | |
327 | // ins.second: true if new entry was inserted, false if not. | |
328 | ||
1564db8d | 329 | Sized_symbol<size>* ret; |
ead1e424 ILT |
330 | bool was_undefined; |
331 | bool was_common; | |
14bfc3f5 ILT |
332 | if (!ins.second) |
333 | { | |
334 | // We already have an entry for NAME/VERSION. | |
593f47df ILT |
335 | ret = this->get_sized_symbol SELECT_SIZE_NAME(size) (ins.first->second |
336 | SELECT_SIZE(size)); | |
a3ad94ed | 337 | gold_assert(ret != NULL); |
ead1e424 ILT |
338 | |
339 | was_undefined = ret->is_undefined(); | |
340 | was_common = ret->is_common(); | |
341 | ||
14b31740 | 342 | Symbol_table::resolve(ret, sym, object, version); |
14bfc3f5 ILT |
343 | |
344 | if (def) | |
345 | { | |
346 | if (insdef.second) | |
347 | { | |
348 | // This is the first time we have seen NAME/NULL. Make | |
349 | // NAME/NULL point to NAME/VERSION. | |
350 | insdef.first->second = ret; | |
351 | } | |
dbe717ef | 352 | else if (insdef.first->second != ret) |
14bfc3f5 ILT |
353 | { |
354 | // This is the unfortunate case where we already have | |
355 | // entries for both NAME/VERSION and NAME/NULL. | |
274e99f9 | 356 | const Sized_symbol<size>* sym2; |
593f47df | 357 | sym2 = this->get_sized_symbol SELECT_SIZE_NAME(size) ( |
5482377d ILT |
358 | insdef.first->second |
359 | SELECT_SIZE(size)); | |
593f47df | 360 | Symbol_table::resolve SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( |
14b31740 | 361 | ret, sym2, version SELECT_SIZE_ENDIAN(size, big_endian)); |
14bfc3f5 ILT |
362 | this->make_forwarder(insdef.first->second, ret); |
363 | insdef.first->second = ret; | |
364 | } | |
365 | } | |
366 | } | |
367 | else | |
368 | { | |
369 | // This is the first time we have seen NAME/VERSION. | |
a3ad94ed | 370 | gold_assert(ins.first->second == NULL); |
ead1e424 ILT |
371 | |
372 | was_undefined = false; | |
373 | was_common = false; | |
374 | ||
14bfc3f5 ILT |
375 | if (def && !insdef.second) |
376 | { | |
14b31740 ILT |
377 | // We already have an entry for NAME/NULL. If we override |
378 | // it, then change it to NAME/VERSION. | |
593f47df ILT |
379 | ret = this->get_sized_symbol SELECT_SIZE_NAME(size) ( |
380 | insdef.first->second | |
381 | SELECT_SIZE(size)); | |
14b31740 | 382 | Symbol_table::resolve(ret, sym, object, version); |
14bfc3f5 ILT |
383 | ins.first->second = ret; |
384 | } | |
385 | else | |
386 | { | |
f6ce93d6 ILT |
387 | Sized_target<size, big_endian>* target = |
388 | object->sized_target SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( | |
389 | SELECT_SIZE_ENDIAN_ONLY(size, big_endian)); | |
1564db8d ILT |
390 | if (!target->has_make_symbol()) |
391 | ret = new Sized_symbol<size>(); | |
392 | else | |
14bfc3f5 | 393 | { |
1564db8d ILT |
394 | ret = target->make_symbol(); |
395 | if (ret == NULL) | |
14bfc3f5 ILT |
396 | { |
397 | // This means that we don't want a symbol table | |
398 | // entry after all. | |
399 | if (!def) | |
400 | this->table_.erase(ins.first); | |
401 | else | |
402 | { | |
403 | this->table_.erase(insdef.first); | |
404 | // Inserting insdef invalidated ins. | |
f0641a0b ILT |
405 | this->table_.erase(std::make_pair(name_key, |
406 | version_key)); | |
14bfc3f5 ILT |
407 | } |
408 | return NULL; | |
409 | } | |
410 | } | |
14bfc3f5 | 411 | |
1564db8d ILT |
412 | ret->init(name, version, object, sym); |
413 | ||
14bfc3f5 ILT |
414 | ins.first->second = ret; |
415 | if (def) | |
416 | { | |
417 | // This is the first time we have seen NAME/NULL. Point | |
418 | // it at the new entry for NAME/VERSION. | |
a3ad94ed | 419 | gold_assert(insdef.second); |
14bfc3f5 ILT |
420 | insdef.first->second = ret; |
421 | } | |
422 | } | |
423 | } | |
424 | ||
ead1e424 ILT |
425 | // Record every time we see a new undefined symbol, to speed up |
426 | // archive groups. | |
427 | if (!was_undefined && ret->is_undefined()) | |
428 | ++this->saw_undefined_; | |
429 | ||
430 | // Keep track of common symbols, to speed up common symbol | |
431 | // allocation. | |
432 | if (!was_common && ret->is_common()) | |
433 | this->commons_.push_back(ret); | |
434 | ||
14bfc3f5 ILT |
435 | return ret; |
436 | } | |
437 | ||
f6ce93d6 | 438 | // Add all the symbols in a relocatable object to the hash table. |
14bfc3f5 ILT |
439 | |
440 | template<int size, bool big_endian> | |
441 | void | |
dbe717ef ILT |
442 | Symbol_table::add_from_relobj( |
443 | Sized_relobj<size, big_endian>* relobj, | |
f6ce93d6 | 444 | const unsigned char* syms, |
14bfc3f5 ILT |
445 | size_t count, |
446 | const char* sym_names, | |
447 | size_t sym_name_size, | |
448 | Symbol** sympointers) | |
449 | { | |
450 | // We take the size from the first object we see. | |
451 | if (this->get_size() == 0) | |
452 | this->set_size(size); | |
453 | ||
dbe717ef | 454 | if (size != this->get_size() || size != relobj->target()->get_size()) |
14bfc3f5 ILT |
455 | { |
456 | fprintf(stderr, _("%s: %s: mixing 32-bit and 64-bit ELF objects\n"), | |
dbe717ef | 457 | program_name, relobj->name().c_str()); |
14bfc3f5 ILT |
458 | gold_exit(false); |
459 | } | |
460 | ||
a783673b ILT |
461 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; |
462 | ||
f6ce93d6 | 463 | const unsigned char* p = syms; |
a783673b | 464 | for (size_t i = 0; i < count; ++i, p += sym_size) |
14bfc3f5 ILT |
465 | { |
466 | elfcpp::Sym<size, big_endian> sym(p); | |
a783673b | 467 | elfcpp::Sym<size, big_endian>* psym = &sym; |
14bfc3f5 | 468 | |
a783673b | 469 | unsigned int st_name = psym->get_st_name(); |
14bfc3f5 ILT |
470 | if (st_name >= sym_name_size) |
471 | { | |
54dc6425 ILT |
472 | fprintf(stderr, |
473 | _("%s: %s: bad global symbol name offset %u at %lu\n"), | |
dbe717ef | 474 | program_name, relobj->name().c_str(), st_name, |
14bfc3f5 ILT |
475 | static_cast<unsigned long>(i)); |
476 | gold_exit(false); | |
477 | } | |
478 | ||
dbe717ef ILT |
479 | const char* name = sym_names + st_name; |
480 | ||
a783673b ILT |
481 | // A symbol defined in a section which we are not including must |
482 | // be treated as an undefined symbol. | |
483 | unsigned char symbuf[sym_size]; | |
484 | elfcpp::Sym<size, big_endian> sym2(symbuf); | |
485 | unsigned int st_shndx = psym->get_st_shndx(); | |
486 | if (st_shndx != elfcpp::SHN_UNDEF | |
487 | && st_shndx < elfcpp::SHN_LORESERVE | |
dbe717ef | 488 | && !relobj->is_section_included(st_shndx)) |
a783673b ILT |
489 | { |
490 | memcpy(symbuf, p, sym_size); | |
491 | elfcpp::Sym_write<size, big_endian> sw(symbuf); | |
492 | sw.put_st_shndx(elfcpp::SHN_UNDEF); | |
493 | psym = &sym2; | |
494 | } | |
495 | ||
14bfc3f5 ILT |
496 | // In an object file, an '@' in the name separates the symbol |
497 | // name from the version name. If there are two '@' characters, | |
498 | // this is the default version. | |
499 | const char* ver = strchr(name, '@'); | |
500 | ||
501 | Symbol* res; | |
502 | if (ver == NULL) | |
503 | { | |
f0641a0b ILT |
504 | Stringpool::Key name_key; |
505 | name = this->namepool_.add(name, &name_key); | |
dbe717ef | 506 | res = this->add_from_object(relobj, name, name_key, NULL, 0, |
f0641a0b | 507 | false, *psym); |
14bfc3f5 ILT |
508 | } |
509 | else | |
510 | { | |
f0641a0b ILT |
511 | Stringpool::Key name_key; |
512 | name = this->namepool_.add(name, ver - name, &name_key); | |
513 | ||
14bfc3f5 ILT |
514 | bool def = false; |
515 | ++ver; | |
516 | if (*ver == '@') | |
517 | { | |
518 | def = true; | |
519 | ++ver; | |
520 | } | |
f0641a0b ILT |
521 | |
522 | Stringpool::Key ver_key; | |
523 | ver = this->namepool_.add(ver, &ver_key); | |
524 | ||
dbe717ef | 525 | res = this->add_from_object(relobj, name, name_key, ver, ver_key, |
f0641a0b | 526 | def, *psym); |
14bfc3f5 ILT |
527 | } |
528 | ||
529 | *sympointers++ = res; | |
14bfc3f5 ILT |
530 | } |
531 | } | |
532 | ||
dbe717ef ILT |
533 | // Add all the symbols in a dynamic object to the hash table. |
534 | ||
535 | template<int size, bool big_endian> | |
536 | void | |
537 | Symbol_table::add_from_dynobj( | |
538 | Sized_dynobj<size, big_endian>* dynobj, | |
539 | const unsigned char* syms, | |
540 | size_t count, | |
541 | const char* sym_names, | |
542 | size_t sym_name_size, | |
543 | const unsigned char* versym, | |
544 | size_t versym_size, | |
545 | const std::vector<const char*>* version_map) | |
546 | { | |
547 | // We take the size from the first object we see. | |
548 | if (this->get_size() == 0) | |
549 | this->set_size(size); | |
550 | ||
551 | if (size != this->get_size() || size != dynobj->target()->get_size()) | |
552 | { | |
553 | fprintf(stderr, _("%s: %s: mixing 32-bit and 64-bit ELF objects\n"), | |
554 | program_name, dynobj->name().c_str()); | |
555 | gold_exit(false); | |
556 | } | |
557 | ||
558 | if (versym != NULL && versym_size / 2 < count) | |
559 | { | |
560 | fprintf(stderr, _("%s: %s: too few symbol versions\n"), | |
561 | program_name, dynobj->name().c_str()); | |
562 | gold_exit(false); | |
563 | } | |
564 | ||
565 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; | |
566 | ||
567 | const unsigned char* p = syms; | |
568 | const unsigned char* vs = versym; | |
569 | for (size_t i = 0; i < count; ++i, p += sym_size, vs += 2) | |
570 | { | |
571 | elfcpp::Sym<size, big_endian> sym(p); | |
572 | ||
573 | // Ignore symbols with local binding. | |
574 | if (sym.get_st_bind() == elfcpp::STB_LOCAL) | |
575 | continue; | |
576 | ||
577 | unsigned int st_name = sym.get_st_name(); | |
578 | if (st_name >= sym_name_size) | |
579 | { | |
580 | fprintf(stderr, _("%s: %s: bad symbol name offset %u at %lu\n"), | |
581 | program_name, dynobj->name().c_str(), st_name, | |
582 | static_cast<unsigned long>(i)); | |
583 | gold_exit(false); | |
584 | } | |
585 | ||
586 | const char* name = sym_names + st_name; | |
587 | ||
588 | if (versym == NULL) | |
589 | { | |
590 | Stringpool::Key name_key; | |
591 | name = this->namepool_.add(name, &name_key); | |
592 | this->add_from_object(dynobj, name, name_key, NULL, 0, | |
593 | false, sym); | |
594 | continue; | |
595 | } | |
596 | ||
597 | // Read the version information. | |
598 | ||
599 | unsigned int v = elfcpp::Swap<16, big_endian>::readval(vs); | |
600 | ||
601 | bool hidden = (v & elfcpp::VERSYM_HIDDEN) != 0; | |
602 | v &= elfcpp::VERSYM_VERSION; | |
603 | ||
604 | if (v == static_cast<unsigned int>(elfcpp::VER_NDX_LOCAL)) | |
605 | { | |
606 | // This symbol should not be visible outside the object. | |
607 | continue; | |
608 | } | |
609 | ||
610 | // At this point we are definitely going to add this symbol. | |
611 | Stringpool::Key name_key; | |
612 | name = this->namepool_.add(name, &name_key); | |
613 | ||
614 | if (v == static_cast<unsigned int>(elfcpp::VER_NDX_GLOBAL)) | |
615 | { | |
616 | // This symbol does not have a version. | |
617 | this->add_from_object(dynobj, name, name_key, NULL, 0, false, sym); | |
618 | continue; | |
619 | } | |
620 | ||
621 | if (v >= version_map->size()) | |
622 | { | |
623 | fprintf(stderr, | |
624 | _("%s: %s: versym for symbol %zu out of range: %u\n"), | |
625 | program_name, dynobj->name().c_str(), i, v); | |
626 | gold_exit(false); | |
627 | } | |
628 | ||
629 | const char* version = (*version_map)[v]; | |
630 | if (version == NULL) | |
631 | { | |
632 | fprintf(stderr, _("%s: %s: versym for symbol %zu has no name: %u\n"), | |
633 | program_name, dynobj->name().c_str(), i, v); | |
634 | gold_exit(false); | |
635 | } | |
636 | ||
637 | Stringpool::Key version_key; | |
638 | version = this->namepool_.add(version, &version_key); | |
639 | ||
640 | // If this is an absolute symbol, and the version name and | |
641 | // symbol name are the same, then this is the version definition | |
642 | // symbol. These symbols exist to support using -u to pull in | |
643 | // particular versions. We do not want to record a version for | |
644 | // them. | |
645 | if (sym.get_st_shndx() == elfcpp::SHN_ABS && name_key == version_key) | |
646 | { | |
647 | this->add_from_object(dynobj, name, name_key, NULL, 0, false, sym); | |
648 | continue; | |
649 | } | |
650 | ||
651 | const bool def = !hidden && sym.get_st_shndx() != elfcpp::SHN_UNDEF; | |
652 | ||
653 | this->add_from_object(dynobj, name, name_key, version, version_key, | |
654 | def, sym); | |
655 | } | |
656 | } | |
657 | ||
ead1e424 ILT |
658 | // Create and return a specially defined symbol. If ONLY_IF_REF is |
659 | // true, then only create the symbol if there is a reference to it. | |
660 | ||
661 | template<int size, bool big_endian> | |
662 | Sized_symbol<size>* | |
14b31740 ILT |
663 | Symbol_table::define_special_symbol(const Target* target, const char* name, |
664 | const char* version, bool only_if_ref | |
593f47df | 665 | ACCEPT_SIZE_ENDIAN) |
ead1e424 | 666 | { |
a3ad94ed | 667 | gold_assert(this->size_ == size); |
ead1e424 ILT |
668 | |
669 | Symbol* oldsym; | |
670 | Sized_symbol<size>* sym; | |
671 | ||
672 | if (only_if_ref) | |
673 | { | |
14b31740 | 674 | oldsym = this->lookup(name, version); |
f6ce93d6 | 675 | if (oldsym == NULL || !oldsym->is_undefined()) |
ead1e424 ILT |
676 | return NULL; |
677 | sym = NULL; | |
678 | ||
14b31740 | 679 | // Canonicalize NAME and VERSION. |
ead1e424 | 680 | name = oldsym->name(); |
14b31740 | 681 | version = oldsym->version(); |
ead1e424 ILT |
682 | } |
683 | else | |
684 | { | |
14b31740 | 685 | // Canonicalize NAME and VERSION. |
f0641a0b ILT |
686 | Stringpool::Key name_key; |
687 | name = this->namepool_.add(name, &name_key); | |
ead1e424 | 688 | |
14b31740 ILT |
689 | Stringpool::Key version_key = 0; |
690 | if (version != NULL) | |
691 | version = this->namepool_.add(version, &version_key); | |
692 | ||
ead1e424 | 693 | Symbol* const snull = NULL; |
ead1e424 | 694 | std::pair<typename Symbol_table_type::iterator, bool> ins = |
14b31740 ILT |
695 | this->table_.insert(std::make_pair(std::make_pair(name_key, |
696 | version_key), | |
ead1e424 ILT |
697 | snull)); |
698 | ||
699 | if (!ins.second) | |
700 | { | |
14b31740 | 701 | // We already have a symbol table entry for NAME/VERSION. |
ead1e424 | 702 | oldsym = ins.first->second; |
a3ad94ed | 703 | gold_assert(oldsym != NULL); |
ead1e424 ILT |
704 | sym = NULL; |
705 | } | |
706 | else | |
707 | { | |
708 | // We haven't seen this symbol before. | |
a3ad94ed | 709 | gold_assert(ins.first->second == NULL); |
ead1e424 ILT |
710 | |
711 | if (!target->has_make_symbol()) | |
712 | sym = new Sized_symbol<size>(); | |
713 | else | |
714 | { | |
a3ad94ed ILT |
715 | gold_assert(target->get_size() == size); |
716 | gold_assert(target->is_big_endian() ? big_endian : !big_endian); | |
ead1e424 | 717 | typedef Sized_target<size, big_endian> My_target; |
14b31740 ILT |
718 | const My_target* sized_target = |
719 | static_cast<const My_target*>(target); | |
ead1e424 ILT |
720 | sym = sized_target->make_symbol(); |
721 | if (sym == NULL) | |
722 | return NULL; | |
723 | } | |
724 | ||
725 | ins.first->second = sym; | |
726 | oldsym = NULL; | |
727 | } | |
728 | } | |
729 | ||
730 | if (oldsym != NULL) | |
731 | { | |
a3ad94ed | 732 | gold_assert(sym == NULL); |
ead1e424 | 733 | |
593f47df ILT |
734 | sym = this->get_sized_symbol SELECT_SIZE_NAME(size) (oldsym |
735 | SELECT_SIZE(size)); | |
a3ad94ed | 736 | gold_assert(sym->source() == Symbol::FROM_OBJECT); |
16649710 ILT |
737 | const int old_shndx = sym->shndx(); |
738 | if (old_shndx != elfcpp::SHN_UNDEF | |
739 | && old_shndx != elfcpp::SHN_COMMON | |
ead1e424 ILT |
740 | && !sym->object()->is_dynamic()) |
741 | { | |
742 | fprintf(stderr, "%s: linker defined: multiple definition of %s\n", | |
743 | program_name, name); | |
744 | // FIXME: Report old location. Record that we have seen an | |
745 | // error. | |
746 | return NULL; | |
747 | } | |
748 | ||
749 | // Our new definition is going to override the old reference. | |
750 | } | |
751 | ||
752 | return sym; | |
753 | } | |
754 | ||
755 | // Define a symbol based on an Output_data. | |
756 | ||
14b31740 ILT |
757 | Symbol* |
758 | Symbol_table::define_in_output_data(const Target* target, const char* name, | |
759 | const char* version, Output_data* od, | |
ead1e424 ILT |
760 | uint64_t value, uint64_t symsize, |
761 | elfcpp::STT type, elfcpp::STB binding, | |
762 | elfcpp::STV visibility, | |
763 | unsigned char nonvis, | |
764 | bool offset_is_from_end, | |
765 | bool only_if_ref) | |
766 | { | |
a3ad94ed | 767 | gold_assert(target->get_size() == this->size_); |
ead1e424 | 768 | if (this->size_ == 32) |
14b31740 ILT |
769 | return this->do_define_in_output_data<32>(target, name, version, od, value, |
770 | symsize, type, binding, | |
771 | visibility, nonvis, | |
772 | offset_is_from_end, only_if_ref); | |
ead1e424 | 773 | else if (this->size_ == 64) |
14b31740 ILT |
774 | return this->do_define_in_output_data<64>(target, name, version, od, value, |
775 | symsize, type, binding, | |
776 | visibility, nonvis, | |
777 | offset_is_from_end, only_if_ref); | |
ead1e424 | 778 | else |
a3ad94ed | 779 | gold_unreachable(); |
ead1e424 ILT |
780 | } |
781 | ||
782 | // Define a symbol in an Output_data, sized version. | |
783 | ||
784 | template<int size> | |
14b31740 | 785 | Sized_symbol<size>* |
ead1e424 | 786 | Symbol_table::do_define_in_output_data( |
14b31740 | 787 | const Target* target, |
ead1e424 | 788 | const char* name, |
14b31740 | 789 | const char* version, |
ead1e424 ILT |
790 | Output_data* od, |
791 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
792 | typename elfcpp::Elf_types<size>::Elf_WXword symsize, | |
793 | elfcpp::STT type, | |
794 | elfcpp::STB binding, | |
795 | elfcpp::STV visibility, | |
796 | unsigned char nonvis, | |
797 | bool offset_is_from_end, | |
798 | bool only_if_ref) | |
799 | { | |
800 | Sized_symbol<size>* sym; | |
801 | ||
802 | if (target->is_big_endian()) | |
593f47df | 803 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) ( |
14b31740 | 804 | target, name, version, only_if_ref |
593f47df | 805 | SELECT_SIZE_ENDIAN(size, true)); |
ead1e424 | 806 | else |
593f47df | 807 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) ( |
14b31740 | 808 | target, name, version, only_if_ref |
593f47df | 809 | SELECT_SIZE_ENDIAN(size, false)); |
ead1e424 ILT |
810 | |
811 | if (sym == NULL) | |
14b31740 | 812 | return NULL; |
ead1e424 ILT |
813 | |
814 | sym->init(name, od, value, symsize, type, binding, visibility, nonvis, | |
815 | offset_is_from_end); | |
14b31740 ILT |
816 | |
817 | return sym; | |
ead1e424 ILT |
818 | } |
819 | ||
820 | // Define a symbol based on an Output_segment. | |
821 | ||
14b31740 ILT |
822 | Symbol* |
823 | Symbol_table::define_in_output_segment(const Target* target, const char* name, | |
824 | const char* version, Output_segment* os, | |
ead1e424 ILT |
825 | uint64_t value, uint64_t symsize, |
826 | elfcpp::STT type, elfcpp::STB binding, | |
827 | elfcpp::STV visibility, | |
828 | unsigned char nonvis, | |
829 | Symbol::Segment_offset_base offset_base, | |
830 | bool only_if_ref) | |
831 | { | |
a3ad94ed | 832 | gold_assert(target->get_size() == this->size_); |
ead1e424 | 833 | if (this->size_ == 32) |
14b31740 ILT |
834 | return this->do_define_in_output_segment<32>(target, name, version, os, |
835 | value, symsize, type, binding, | |
836 | visibility, nonvis, | |
837 | offset_base, only_if_ref); | |
ead1e424 | 838 | else if (this->size_ == 64) |
14b31740 ILT |
839 | return this->do_define_in_output_segment<64>(target, name, version, os, |
840 | value, symsize, type, binding, | |
841 | visibility, nonvis, | |
842 | offset_base, only_if_ref); | |
ead1e424 | 843 | else |
a3ad94ed | 844 | gold_unreachable(); |
ead1e424 ILT |
845 | } |
846 | ||
847 | // Define a symbol in an Output_segment, sized version. | |
848 | ||
849 | template<int size> | |
14b31740 | 850 | Sized_symbol<size>* |
ead1e424 | 851 | Symbol_table::do_define_in_output_segment( |
14b31740 | 852 | const Target* target, |
ead1e424 | 853 | const char* name, |
14b31740 | 854 | const char* version, |
ead1e424 ILT |
855 | Output_segment* os, |
856 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
857 | typename elfcpp::Elf_types<size>::Elf_WXword symsize, | |
858 | elfcpp::STT type, | |
859 | elfcpp::STB binding, | |
860 | elfcpp::STV visibility, | |
861 | unsigned char nonvis, | |
862 | Symbol::Segment_offset_base offset_base, | |
863 | bool only_if_ref) | |
864 | { | |
865 | Sized_symbol<size>* sym; | |
866 | ||
867 | if (target->is_big_endian()) | |
593f47df | 868 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) ( |
14b31740 | 869 | target, name, version, only_if_ref |
593f47df | 870 | SELECT_SIZE_ENDIAN(size, true)); |
ead1e424 | 871 | else |
593f47df | 872 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) ( |
14b31740 | 873 | target, name, version, only_if_ref |
593f47df | 874 | SELECT_SIZE_ENDIAN(size, false)); |
ead1e424 ILT |
875 | |
876 | if (sym == NULL) | |
14b31740 | 877 | return NULL; |
ead1e424 ILT |
878 | |
879 | sym->init(name, os, value, symsize, type, binding, visibility, nonvis, | |
880 | offset_base); | |
14b31740 ILT |
881 | |
882 | return sym; | |
ead1e424 ILT |
883 | } |
884 | ||
885 | // Define a special symbol with a constant value. It is a multiple | |
886 | // definition error if this symbol is already defined. | |
887 | ||
14b31740 ILT |
888 | Symbol* |
889 | Symbol_table::define_as_constant(const Target* target, const char* name, | |
890 | const char* version, uint64_t value, | |
891 | uint64_t symsize, elfcpp::STT type, | |
892 | elfcpp::STB binding, elfcpp::STV visibility, | |
893 | unsigned char nonvis, bool only_if_ref) | |
ead1e424 | 894 | { |
a3ad94ed | 895 | gold_assert(target->get_size() == this->size_); |
ead1e424 | 896 | if (this->size_ == 32) |
14b31740 ILT |
897 | return this->do_define_as_constant<32>(target, name, version, value, |
898 | symsize, type, binding, visibility, | |
899 | nonvis, only_if_ref); | |
ead1e424 | 900 | else if (this->size_ == 64) |
14b31740 ILT |
901 | return this->do_define_as_constant<64>(target, name, version, value, |
902 | symsize, type, binding, visibility, | |
903 | nonvis, only_if_ref); | |
ead1e424 | 904 | else |
a3ad94ed | 905 | gold_unreachable(); |
ead1e424 ILT |
906 | } |
907 | ||
908 | // Define a symbol as a constant, sized version. | |
909 | ||
910 | template<int size> | |
14b31740 | 911 | Sized_symbol<size>* |
ead1e424 | 912 | Symbol_table::do_define_as_constant( |
14b31740 | 913 | const Target* target, |
ead1e424 | 914 | const char* name, |
14b31740 | 915 | const char* version, |
ead1e424 ILT |
916 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
917 | typename elfcpp::Elf_types<size>::Elf_WXword symsize, | |
918 | elfcpp::STT type, | |
919 | elfcpp::STB binding, | |
920 | elfcpp::STV visibility, | |
921 | unsigned char nonvis, | |
922 | bool only_if_ref) | |
923 | { | |
924 | Sized_symbol<size>* sym; | |
925 | ||
926 | if (target->is_big_endian()) | |
593f47df | 927 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) ( |
14b31740 | 928 | target, name, version, only_if_ref |
593f47df | 929 | SELECT_SIZE_ENDIAN(size, true)); |
ead1e424 | 930 | else |
593f47df | 931 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) ( |
14b31740 | 932 | target, name, version, only_if_ref |
593f47df | 933 | SELECT_SIZE_ENDIAN(size, false)); |
ead1e424 ILT |
934 | |
935 | if (sym == NULL) | |
14b31740 | 936 | return NULL; |
ead1e424 ILT |
937 | |
938 | sym->init(name, value, symsize, type, binding, visibility, nonvis); | |
14b31740 ILT |
939 | |
940 | return sym; | |
ead1e424 ILT |
941 | } |
942 | ||
943 | // Define a set of symbols in output sections. | |
944 | ||
945 | void | |
14b31740 ILT |
946 | Symbol_table::define_symbols(const Layout* layout, const Target* target, |
947 | int count, const Define_symbol_in_section* p) | |
ead1e424 ILT |
948 | { |
949 | for (int i = 0; i < count; ++i, ++p) | |
950 | { | |
951 | Output_section* os = layout->find_output_section(p->output_section); | |
952 | if (os != NULL) | |
14b31740 ILT |
953 | this->define_in_output_data(target, p->name, NULL, os, p->value, |
954 | p->size, p->type, p->binding, | |
955 | p->visibility, p->nonvis, | |
956 | p->offset_is_from_end, p->only_if_ref); | |
ead1e424 | 957 | else |
14b31740 | 958 | this->define_as_constant(target, p->name, NULL, 0, p->size, p->type, |
ead1e424 ILT |
959 | p->binding, p->visibility, p->nonvis, |
960 | p->only_if_ref); | |
961 | } | |
962 | } | |
963 | ||
964 | // Define a set of symbols in output segments. | |
965 | ||
966 | void | |
14b31740 ILT |
967 | Symbol_table::define_symbols(const Layout* layout, const Target* target, |
968 | int count, const Define_symbol_in_segment* p) | |
ead1e424 ILT |
969 | { |
970 | for (int i = 0; i < count; ++i, ++p) | |
971 | { | |
972 | Output_segment* os = layout->find_output_segment(p->segment_type, | |
973 | p->segment_flags_set, | |
974 | p->segment_flags_clear); | |
975 | if (os != NULL) | |
14b31740 ILT |
976 | this->define_in_output_segment(target, p->name, NULL, os, p->value, |
977 | p->size, p->type, p->binding, | |
978 | p->visibility, p->nonvis, | |
979 | p->offset_base, p->only_if_ref); | |
ead1e424 | 980 | else |
14b31740 | 981 | this->define_as_constant(target, p->name, NULL, 0, p->size, p->type, |
ead1e424 ILT |
982 | p->binding, p->visibility, p->nonvis, |
983 | p->only_if_ref); | |
984 | } | |
985 | } | |
986 | ||
a3ad94ed ILT |
987 | // Set the dynamic symbol indexes. INDEX is the index of the first |
988 | // global dynamic symbol. Pointers to the symbols are stored into the | |
989 | // vector SYMS. The names are added to DYNPOOL. This returns an | |
990 | // updated dynamic symbol index. | |
991 | ||
992 | unsigned int | |
14b31740 ILT |
993 | Symbol_table::set_dynsym_indexes(const General_options* options, |
994 | const Target* target, | |
995 | unsigned int index, | |
a3ad94ed | 996 | std::vector<Symbol*>* syms, |
14b31740 ILT |
997 | Stringpool* dynpool, |
998 | Versions* versions) | |
a3ad94ed ILT |
999 | { |
1000 | for (Symbol_table_type::iterator p = this->table_.begin(); | |
1001 | p != this->table_.end(); | |
1002 | ++p) | |
1003 | { | |
1004 | Symbol* sym = p->second; | |
16649710 ILT |
1005 | |
1006 | // Note that SYM may already have a dynamic symbol index, since | |
1007 | // some symbols appear more than once in the symbol table, with | |
1008 | // and without a version. | |
1009 | ||
a6badf5a ILT |
1010 | if (!sym->needs_dynsym_entry() |
1011 | && (!options->export_dynamic() | |
1012 | || !sym->in_reg() | |
1013 | || !sym->is_externally_visible())) | |
16649710 ILT |
1014 | sym->set_dynsym_index(-1U); |
1015 | else if (!sym->has_dynsym_index()) | |
a3ad94ed ILT |
1016 | { |
1017 | sym->set_dynsym_index(index); | |
1018 | ++index; | |
1019 | syms->push_back(sym); | |
1020 | dynpool->add(sym->name(), NULL); | |
14b31740 ILT |
1021 | |
1022 | // Record any version information. | |
1023 | if (sym->version() != NULL) | |
1024 | versions->record_version(options, dynpool, sym); | |
a3ad94ed ILT |
1025 | } |
1026 | } | |
1027 | ||
14b31740 ILT |
1028 | // Finish up the versions. In some cases this may add new dynamic |
1029 | // symbols. | |
1030 | index = versions->finalize(target, this, index, syms); | |
1031 | ||
a3ad94ed ILT |
1032 | return index; |
1033 | } | |
1034 | ||
c06b7b0b ILT |
1035 | // Set the final values for all the symbols. The index of the first |
1036 | // global symbol in the output file is INDEX. Record the file offset | |
75f65a3e | 1037 | // OFF. Add their names to POOL. Return the new file offset. |
54dc6425 | 1038 | |
75f65a3e | 1039 | off_t |
16649710 ILT |
1040 | Symbol_table::finalize(unsigned int index, off_t off, off_t dynoff, |
1041 | size_t dyn_global_index, size_t dyncount, | |
1042 | Stringpool* pool) | |
54dc6425 | 1043 | { |
f6ce93d6 ILT |
1044 | off_t ret; |
1045 | ||
a3ad94ed | 1046 | gold_assert(index != 0); |
c06b7b0b ILT |
1047 | this->first_global_index_ = index; |
1048 | ||
16649710 ILT |
1049 | this->dynamic_offset_ = dynoff; |
1050 | this->first_dynamic_global_index_ = dyn_global_index; | |
1051 | this->dynamic_count_ = dyncount; | |
1052 | ||
75f65a3e | 1053 | if (this->size_ == 32) |
c06b7b0b | 1054 | ret = this->sized_finalize<32>(index, off, pool); |
61ba1cf9 | 1055 | else if (this->size_ == 64) |
c06b7b0b | 1056 | ret = this->sized_finalize<64>(index, off, pool); |
61ba1cf9 | 1057 | else |
a3ad94ed | 1058 | gold_unreachable(); |
f6ce93d6 ILT |
1059 | |
1060 | // Now that we have the final symbol table, we can reliably note | |
1061 | // which symbols should get warnings. | |
1062 | this->warnings_.note_warnings(this); | |
1063 | ||
1064 | return ret; | |
75f65a3e ILT |
1065 | } |
1066 | ||
ead1e424 ILT |
1067 | // Set the final value for all the symbols. This is called after |
1068 | // Layout::finalize, so all the output sections have their final | |
1069 | // address. | |
75f65a3e ILT |
1070 | |
1071 | template<int size> | |
1072 | off_t | |
c06b7b0b | 1073 | Symbol_table::sized_finalize(unsigned index, off_t off, Stringpool* pool) |
75f65a3e | 1074 | { |
ead1e424 | 1075 | off = align_address(off, size >> 3); |
75f65a3e ILT |
1076 | this->offset_ = off; |
1077 | ||
c06b7b0b ILT |
1078 | size_t orig_index = index; |
1079 | ||
75f65a3e | 1080 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; |
c06b7b0b ILT |
1081 | for (Symbol_table_type::iterator p = this->table_.begin(); |
1082 | p != this->table_.end(); | |
1083 | ++p) | |
54dc6425 | 1084 | { |
75f65a3e | 1085 | Sized_symbol<size>* sym = static_cast<Sized_symbol<size>*>(p->second); |
54dc6425 | 1086 | |
75f65a3e | 1087 | // FIXME: Here we need to decide which symbols should go into |
a3ad94ed ILT |
1088 | // the output file, based on --strip. |
1089 | ||
1090 | // The default version of a symbol may appear twice in the | |
1091 | // symbol table. We only need to finalize it once. | |
1092 | if (sym->has_symtab_index()) | |
1093 | continue; | |
75f65a3e | 1094 | |
008db82e ILT |
1095 | if (!sym->in_reg()) |
1096 | { | |
1097 | gold_assert(!sym->has_symtab_index()); | |
1098 | sym->set_symtab_index(-1U); | |
1099 | gold_assert(sym->dynsym_index() == -1U); | |
1100 | continue; | |
1101 | } | |
1102 | ||
ead1e424 | 1103 | typename Sized_symbol<size>::Value_type value; |
75f65a3e | 1104 | |
ead1e424 | 1105 | switch (sym->source()) |
75f65a3e | 1106 | { |
ead1e424 ILT |
1107 | case Symbol::FROM_OBJECT: |
1108 | { | |
16649710 | 1109 | unsigned int shndx = sym->shndx(); |
ead1e424 ILT |
1110 | |
1111 | // FIXME: We need some target specific support here. | |
16649710 ILT |
1112 | if (shndx >= elfcpp::SHN_LORESERVE |
1113 | && shndx != elfcpp::SHN_ABS) | |
ead1e424 ILT |
1114 | { |
1115 | fprintf(stderr, _("%s: %s: unsupported symbol section 0x%x\n"), | |
16649710 | 1116 | program_name, sym->name(), shndx); |
ead1e424 ILT |
1117 | gold_exit(false); |
1118 | } | |
1119 | ||
f6ce93d6 ILT |
1120 | Object* symobj = sym->object(); |
1121 | if (symobj->is_dynamic()) | |
1122 | { | |
1123 | value = 0; | |
16649710 | 1124 | shndx = elfcpp::SHN_UNDEF; |
f6ce93d6 | 1125 | } |
16649710 | 1126 | else if (shndx == elfcpp::SHN_UNDEF) |
ead1e424 | 1127 | value = 0; |
16649710 | 1128 | else if (shndx == elfcpp::SHN_ABS) |
ead1e424 ILT |
1129 | value = sym->value(); |
1130 | else | |
1131 | { | |
f6ce93d6 | 1132 | Relobj* relobj = static_cast<Relobj*>(symobj); |
ead1e424 | 1133 | off_t secoff; |
16649710 | 1134 | Output_section* os = relobj->output_section(shndx, &secoff); |
ead1e424 ILT |
1135 | |
1136 | if (os == NULL) | |
1137 | { | |
c06b7b0b | 1138 | sym->set_symtab_index(-1U); |
16649710 | 1139 | gold_assert(sym->dynsym_index() == -1U); |
ead1e424 ILT |
1140 | continue; |
1141 | } | |
1142 | ||
1143 | value = sym->value() + os->address() + secoff; | |
1144 | } | |
1145 | } | |
1146 | break; | |
1147 | ||
1148 | case Symbol::IN_OUTPUT_DATA: | |
1149 | { | |
1150 | Output_data* od = sym->output_data(); | |
1151 | value = sym->value() + od->address(); | |
1152 | if (sym->offset_is_from_end()) | |
1153 | value += od->data_size(); | |
1154 | } | |
1155 | break; | |
1156 | ||
1157 | case Symbol::IN_OUTPUT_SEGMENT: | |
1158 | { | |
1159 | Output_segment* os = sym->output_segment(); | |
1160 | value = sym->value() + os->vaddr(); | |
1161 | switch (sym->offset_base()) | |
1162 | { | |
1163 | case Symbol::SEGMENT_START: | |
1164 | break; | |
1165 | case Symbol::SEGMENT_END: | |
1166 | value += os->memsz(); | |
1167 | break; | |
1168 | case Symbol::SEGMENT_BSS: | |
1169 | value += os->filesz(); | |
1170 | break; | |
1171 | default: | |
a3ad94ed | 1172 | gold_unreachable(); |
ead1e424 ILT |
1173 | } |
1174 | } | |
1175 | break; | |
1176 | ||
1177 | case Symbol::CONSTANT: | |
1178 | value = sym->value(); | |
1179 | break; | |
1180 | ||
1181 | default: | |
a3ad94ed | 1182 | gold_unreachable(); |
54dc6425 | 1183 | } |
ead1e424 ILT |
1184 | |
1185 | sym->set_value(value); | |
c06b7b0b | 1186 | sym->set_symtab_index(index); |
f0641a0b | 1187 | pool->add(sym->name(), NULL); |
c06b7b0b | 1188 | ++index; |
ead1e424 | 1189 | off += sym_size; |
54dc6425 | 1190 | } |
75f65a3e | 1191 | |
c06b7b0b | 1192 | this->output_count_ = index - orig_index; |
61ba1cf9 | 1193 | |
75f65a3e | 1194 | return off; |
54dc6425 ILT |
1195 | } |
1196 | ||
61ba1cf9 ILT |
1197 | // Write out the global symbols. |
1198 | ||
1199 | void | |
1200 | Symbol_table::write_globals(const Target* target, const Stringpool* sympool, | |
16649710 | 1201 | const Stringpool* dynpool, Output_file* of) const |
61ba1cf9 ILT |
1202 | { |
1203 | if (this->size_ == 32) | |
1204 | { | |
1205 | if (target->is_big_endian()) | |
16649710 | 1206 | this->sized_write_globals<32, true>(target, sympool, dynpool, of); |
61ba1cf9 | 1207 | else |
16649710 | 1208 | this->sized_write_globals<32, false>(target, sympool, dynpool, of); |
61ba1cf9 ILT |
1209 | } |
1210 | else if (this->size_ == 64) | |
1211 | { | |
1212 | if (target->is_big_endian()) | |
16649710 | 1213 | this->sized_write_globals<64, true>(target, sympool, dynpool, of); |
61ba1cf9 | 1214 | else |
16649710 | 1215 | this->sized_write_globals<64, false>(target, sympool, dynpool, of); |
61ba1cf9 ILT |
1216 | } |
1217 | else | |
a3ad94ed | 1218 | gold_unreachable(); |
61ba1cf9 ILT |
1219 | } |
1220 | ||
1221 | // Write out the global symbols. | |
1222 | ||
1223 | template<int size, bool big_endian> | |
1224 | void | |
1225 | Symbol_table::sized_write_globals(const Target*, | |
1226 | const Stringpool* sympool, | |
16649710 | 1227 | const Stringpool* dynpool, |
61ba1cf9 ILT |
1228 | Output_file* of) const |
1229 | { | |
1230 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; | |
c06b7b0b ILT |
1231 | unsigned int index = this->first_global_index_; |
1232 | const off_t oview_size = this->output_count_ * sym_size; | |
16649710 ILT |
1233 | unsigned char* const psyms = of->get_output_view(this->offset_, oview_size); |
1234 | ||
1235 | unsigned int dynamic_count = this->dynamic_count_; | |
1236 | off_t dynamic_size = dynamic_count * sym_size; | |
1237 | unsigned int first_dynamic_global_index = this->first_dynamic_global_index_; | |
1238 | unsigned char* dynamic_view; | |
1239 | if (this->dynamic_offset_ == 0) | |
1240 | dynamic_view = NULL; | |
1241 | else | |
1242 | dynamic_view = of->get_output_view(this->dynamic_offset_, dynamic_size); | |
c06b7b0b | 1243 | |
61ba1cf9 ILT |
1244 | unsigned char* ps = psyms; |
1245 | for (Symbol_table_type::const_iterator p = this->table_.begin(); | |
1246 | p != this->table_.end(); | |
1247 | ++p) | |
1248 | { | |
1249 | Sized_symbol<size>* sym = static_cast<Sized_symbol<size>*>(p->second); | |
1250 | ||
a3ad94ed | 1251 | unsigned int sym_index = sym->symtab_index(); |
16649710 ILT |
1252 | unsigned int dynsym_index; |
1253 | if (dynamic_view == NULL) | |
1254 | dynsym_index = -1U; | |
1255 | else | |
1256 | dynsym_index = sym->dynsym_index(); | |
1257 | ||
1258 | if (sym_index == -1U && dynsym_index == -1U) | |
a3ad94ed ILT |
1259 | { |
1260 | // This symbol is not included in the output file. | |
1261 | continue; | |
1262 | } | |
16649710 ILT |
1263 | |
1264 | if (sym_index == index) | |
1265 | ++index; | |
1266 | else if (sym_index != -1U) | |
a3ad94ed ILT |
1267 | { |
1268 | // We have already seen this symbol, because it has a | |
1269 | // default version. | |
1270 | gold_assert(sym_index < index); | |
16649710 ILT |
1271 | if (dynsym_index == -1U) |
1272 | continue; | |
1273 | sym_index = -1U; | |
a3ad94ed | 1274 | } |
c06b7b0b | 1275 | |
ead1e424 ILT |
1276 | unsigned int shndx; |
1277 | switch (sym->source()) | |
1278 | { | |
1279 | case Symbol::FROM_OBJECT: | |
1280 | { | |
16649710 | 1281 | unsigned int in_shndx = sym->shndx(); |
ead1e424 ILT |
1282 | |
1283 | // FIXME: We need some target specific support here. | |
16649710 ILT |
1284 | if (in_shndx >= elfcpp::SHN_LORESERVE |
1285 | && in_shndx != elfcpp::SHN_ABS) | |
ead1e424 ILT |
1286 | { |
1287 | fprintf(stderr, _("%s: %s: unsupported symbol section 0x%x\n"), | |
16649710 | 1288 | program_name, sym->name(), in_shndx); |
ead1e424 ILT |
1289 | gold_exit(false); |
1290 | } | |
1291 | ||
f6ce93d6 ILT |
1292 | Object* symobj = sym->object(); |
1293 | if (symobj->is_dynamic()) | |
1294 | { | |
1295 | // FIXME. | |
1296 | shndx = elfcpp::SHN_UNDEF; | |
1297 | } | |
16649710 ILT |
1298 | else if (in_shndx == elfcpp::SHN_UNDEF |
1299 | || in_shndx == elfcpp::SHN_ABS) | |
1300 | shndx = in_shndx; | |
ead1e424 ILT |
1301 | else |
1302 | { | |
f6ce93d6 | 1303 | Relobj* relobj = static_cast<Relobj*>(symobj); |
ead1e424 | 1304 | off_t secoff; |
16649710 | 1305 | Output_section* os = relobj->output_section(in_shndx, &secoff); |
a3ad94ed | 1306 | gold_assert(os != NULL); |
ead1e424 ILT |
1307 | shndx = os->out_shndx(); |
1308 | } | |
1309 | } | |
1310 | break; | |
1311 | ||
1312 | case Symbol::IN_OUTPUT_DATA: | |
1313 | shndx = sym->output_data()->out_shndx(); | |
1314 | break; | |
1315 | ||
1316 | case Symbol::IN_OUTPUT_SEGMENT: | |
1317 | shndx = elfcpp::SHN_ABS; | |
1318 | break; | |
1319 | ||
1320 | case Symbol::CONSTANT: | |
1321 | shndx = elfcpp::SHN_ABS; | |
1322 | break; | |
1323 | ||
1324 | default: | |
a3ad94ed | 1325 | gold_unreachable(); |
ead1e424 | 1326 | } |
61ba1cf9 | 1327 | |
16649710 ILT |
1328 | if (sym_index != -1U) |
1329 | { | |
6a469986 ILT |
1330 | this->sized_write_symbol SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( |
1331 | sym, shndx, sympool, ps | |
1332 | SELECT_SIZE_ENDIAN(size, big_endian)); | |
16649710 ILT |
1333 | ps += sym_size; |
1334 | } | |
61ba1cf9 | 1335 | |
16649710 ILT |
1336 | if (dynsym_index != -1U) |
1337 | { | |
1338 | dynsym_index -= first_dynamic_global_index; | |
1339 | gold_assert(dynsym_index < dynamic_count); | |
1340 | unsigned char* pd = dynamic_view + (dynsym_index * sym_size); | |
6a469986 ILT |
1341 | this->sized_write_symbol SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( |
1342 | sym, shndx, dynpool, pd | |
1343 | SELECT_SIZE_ENDIAN(size, big_endian)); | |
16649710 | 1344 | } |
61ba1cf9 ILT |
1345 | } |
1346 | ||
a3ad94ed | 1347 | gold_assert(ps - psyms == oview_size); |
c06b7b0b ILT |
1348 | |
1349 | of->write_output_view(this->offset_, oview_size, psyms); | |
16649710 ILT |
1350 | if (dynamic_view != NULL) |
1351 | of->write_output_view(this->dynamic_offset_, dynamic_size, dynamic_view); | |
1352 | } | |
1353 | ||
1354 | // Write out the symbol SYM, in section SHNDX, to P. POOL is the | |
1355 | // strtab holding the name. | |
1356 | ||
1357 | template<int size, bool big_endian> | |
1358 | void | |
1359 | Symbol_table::sized_write_symbol(Sized_symbol<size>* sym, | |
1360 | unsigned int shndx, | |
1361 | const Stringpool* pool, | |
6a469986 ILT |
1362 | unsigned char* p |
1363 | ACCEPT_SIZE_ENDIAN) const | |
16649710 ILT |
1364 | { |
1365 | elfcpp::Sym_write<size, big_endian> osym(p); | |
1366 | osym.put_st_name(pool->get_offset(sym->name())); | |
1367 | osym.put_st_value(sym->value()); | |
1368 | osym.put_st_size(sym->symsize()); | |
1369 | osym.put_st_info(elfcpp::elf_st_info(sym->binding(), sym->type())); | |
1370 | osym.put_st_other(elfcpp::elf_st_other(sym->visibility(), sym->nonvis())); | |
1371 | osym.put_st_shndx(shndx); | |
61ba1cf9 ILT |
1372 | } |
1373 | ||
a3ad94ed ILT |
1374 | // Write out a section symbol. Return the update offset. |
1375 | ||
1376 | void | |
1377 | Symbol_table::write_section_symbol(const Target* target, | |
1378 | const Output_section *os, | |
1379 | Output_file* of, | |
1380 | off_t offset) const | |
1381 | { | |
1382 | if (this->size_ == 32) | |
1383 | { | |
1384 | if (target->is_big_endian()) | |
1385 | this->sized_write_section_symbol<32, true>(os, of, offset); | |
1386 | else | |
1387 | this->sized_write_section_symbol<32, false>(os, of, offset); | |
1388 | } | |
1389 | else if (this->size_ == 64) | |
1390 | { | |
1391 | if (target->is_big_endian()) | |
1392 | this->sized_write_section_symbol<64, true>(os, of, offset); | |
1393 | else | |
1394 | this->sized_write_section_symbol<64, false>(os, of, offset); | |
1395 | } | |
1396 | else | |
1397 | gold_unreachable(); | |
1398 | } | |
1399 | ||
1400 | // Write out a section symbol, specialized for size and endianness. | |
1401 | ||
1402 | template<int size, bool big_endian> | |
1403 | void | |
1404 | Symbol_table::sized_write_section_symbol(const Output_section* os, | |
1405 | Output_file* of, | |
1406 | off_t offset) const | |
1407 | { | |
1408 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; | |
1409 | ||
1410 | unsigned char* pov = of->get_output_view(offset, sym_size); | |
1411 | ||
1412 | elfcpp::Sym_write<size, big_endian> osym(pov); | |
1413 | osym.put_st_name(0); | |
1414 | osym.put_st_value(os->address()); | |
1415 | osym.put_st_size(0); | |
1416 | osym.put_st_info(elfcpp::elf_st_info(elfcpp::STB_LOCAL, | |
1417 | elfcpp::STT_SECTION)); | |
1418 | osym.put_st_other(elfcpp::elf_st_other(elfcpp::STV_DEFAULT, 0)); | |
1419 | osym.put_st_shndx(os->out_shndx()); | |
1420 | ||
1421 | of->write_output_view(offset, sym_size, pov); | |
1422 | } | |
1423 | ||
f6ce93d6 ILT |
1424 | // Warnings functions. |
1425 | ||
1426 | // Add a new warning. | |
1427 | ||
1428 | void | |
1429 | Warnings::add_warning(Symbol_table* symtab, const char* name, Object* obj, | |
1430 | unsigned int shndx) | |
1431 | { | |
1432 | name = symtab->canonicalize_name(name); | |
1433 | this->warnings_[name].set(obj, shndx); | |
1434 | } | |
1435 | ||
1436 | // Look through the warnings and mark the symbols for which we should | |
1437 | // warn. This is called during Layout::finalize when we know the | |
1438 | // sources for all the symbols. | |
1439 | ||
1440 | void | |
1441 | Warnings::note_warnings(Symbol_table* symtab) | |
1442 | { | |
1443 | for (Warning_table::iterator p = this->warnings_.begin(); | |
1444 | p != this->warnings_.end(); | |
1445 | ++p) | |
1446 | { | |
1447 | Symbol* sym = symtab->lookup(p->first, NULL); | |
1448 | if (sym != NULL | |
1449 | && sym->source() == Symbol::FROM_OBJECT | |
1450 | && sym->object() == p->second.object) | |
1451 | { | |
1452 | sym->set_has_warning(); | |
1453 | ||
1454 | // Read the section contents to get the warning text. It | |
1455 | // would be nicer if we only did this if we have to actually | |
1456 | // issue a warning. Unfortunately, warnings are issued as | |
1457 | // we relocate sections. That means that we can not lock | |
1458 | // the object then, as we might try to issue the same | |
1459 | // warning multiple times simultaneously. | |
645f8123 ILT |
1460 | { |
1461 | Task_locker_obj<Object> tl(*p->second.object); | |
1462 | const unsigned char* c; | |
1463 | off_t len; | |
1464 | c = p->second.object->section_contents(p->second.shndx, &len); | |
1465 | p->second.set_text(reinterpret_cast<const char*>(c), len); | |
1466 | } | |
f6ce93d6 ILT |
1467 | } |
1468 | } | |
1469 | } | |
1470 | ||
1471 | // Issue a warning. This is called when we see a relocation against a | |
1472 | // symbol for which has a warning. | |
1473 | ||
1474 | void | |
c06b7b0b | 1475 | Warnings::issue_warning(const Symbol* sym, const std::string& location) const |
f6ce93d6 | 1476 | { |
a3ad94ed | 1477 | gold_assert(sym->has_warning()); |
f6ce93d6 | 1478 | Warning_table::const_iterator p = this->warnings_.find(sym->name()); |
a3ad94ed | 1479 | gold_assert(p != this->warnings_.end()); |
f6ce93d6 ILT |
1480 | fprintf(stderr, _("%s: %s: warning: %s\n"), program_name, location.c_str(), |
1481 | p->second.text.c_str()); | |
1482 | } | |
1483 | ||
14bfc3f5 ILT |
1484 | // Instantiate the templates we need. We could use the configure |
1485 | // script to restrict this to only the ones needed for implemented | |
1486 | // targets. | |
1487 | ||
1488 | template | |
1489 | void | |
dbe717ef ILT |
1490 | Symbol_table::add_from_relobj<32, true>( |
1491 | Sized_relobj<32, true>* relobj, | |
f6ce93d6 | 1492 | const unsigned char* syms, |
14bfc3f5 ILT |
1493 | size_t count, |
1494 | const char* sym_names, | |
1495 | size_t sym_name_size, | |
1496 | Symbol** sympointers); | |
1497 | ||
1498 | template | |
1499 | void | |
dbe717ef ILT |
1500 | Symbol_table::add_from_relobj<32, false>( |
1501 | Sized_relobj<32, false>* relobj, | |
f6ce93d6 | 1502 | const unsigned char* syms, |
14bfc3f5 ILT |
1503 | size_t count, |
1504 | const char* sym_names, | |
1505 | size_t sym_name_size, | |
1506 | Symbol** sympointers); | |
1507 | ||
1508 | template | |
1509 | void | |
dbe717ef ILT |
1510 | Symbol_table::add_from_relobj<64, true>( |
1511 | Sized_relobj<64, true>* relobj, | |
f6ce93d6 | 1512 | const unsigned char* syms, |
14bfc3f5 ILT |
1513 | size_t count, |
1514 | const char* sym_names, | |
1515 | size_t sym_name_size, | |
1516 | Symbol** sympointers); | |
1517 | ||
1518 | template | |
1519 | void | |
dbe717ef ILT |
1520 | Symbol_table::add_from_relobj<64, false>( |
1521 | Sized_relobj<64, false>* relobj, | |
f6ce93d6 | 1522 | const unsigned char* syms, |
14bfc3f5 ILT |
1523 | size_t count, |
1524 | const char* sym_names, | |
1525 | size_t sym_name_size, | |
1526 | Symbol** sympointers); | |
1527 | ||
dbe717ef ILT |
1528 | template |
1529 | void | |
1530 | Symbol_table::add_from_dynobj<32, true>( | |
1531 | Sized_dynobj<32, true>* dynobj, | |
1532 | const unsigned char* syms, | |
1533 | size_t count, | |
1534 | const char* sym_names, | |
1535 | size_t sym_name_size, | |
1536 | const unsigned char* versym, | |
1537 | size_t versym_size, | |
1538 | const std::vector<const char*>* version_map); | |
1539 | ||
1540 | template | |
1541 | void | |
1542 | Symbol_table::add_from_dynobj<32, false>( | |
1543 | Sized_dynobj<32, false>* dynobj, | |
1544 | const unsigned char* syms, | |
1545 | size_t count, | |
1546 | const char* sym_names, | |
1547 | size_t sym_name_size, | |
1548 | const unsigned char* versym, | |
1549 | size_t versym_size, | |
1550 | const std::vector<const char*>* version_map); | |
1551 | ||
1552 | template | |
1553 | void | |
1554 | Symbol_table::add_from_dynobj<64, true>( | |
1555 | Sized_dynobj<64, true>* dynobj, | |
1556 | const unsigned char* syms, | |
1557 | size_t count, | |
1558 | const char* sym_names, | |
1559 | size_t sym_name_size, | |
1560 | const unsigned char* versym, | |
1561 | size_t versym_size, | |
1562 | const std::vector<const char*>* version_map); | |
1563 | ||
1564 | template | |
1565 | void | |
1566 | Symbol_table::add_from_dynobj<64, false>( | |
1567 | Sized_dynobj<64, false>* dynobj, | |
1568 | const unsigned char* syms, | |
1569 | size_t count, | |
1570 | const char* sym_names, | |
1571 | size_t sym_name_size, | |
1572 | const unsigned char* versym, | |
1573 | size_t versym_size, | |
1574 | const std::vector<const char*>* version_map); | |
1575 | ||
14bfc3f5 | 1576 | } // End namespace gold. |