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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 | ||
64707334 ILT |
604 | // The Sun documentation says that V can be VER_NDX_LOCAL, or |
605 | // VER_NDX_GLOBAL, or a version index. The meaning of | |
606 | // VER_NDX_LOCAL is defined as "Symbol has local scope." The | |
607 | // old GNU linker will happily generate VER_NDX_LOCAL for an | |
608 | // undefined symbol. I don't know what the Sun linker will | |
609 | // generate. | |
610 | ||
611 | if (v == static_cast<unsigned int>(elfcpp::VER_NDX_LOCAL) | |
612 | && sym.get_st_shndx() != elfcpp::SHN_UNDEF) | |
dbe717ef ILT |
613 | { |
614 | // This symbol should not be visible outside the object. | |
615 | continue; | |
616 | } | |
617 | ||
618 | // At this point we are definitely going to add this symbol. | |
619 | Stringpool::Key name_key; | |
620 | name = this->namepool_.add(name, &name_key); | |
621 | ||
64707334 ILT |
622 | if (v == static_cast<unsigned int>(elfcpp::VER_NDX_LOCAL) |
623 | || v == static_cast<unsigned int>(elfcpp::VER_NDX_GLOBAL)) | |
dbe717ef ILT |
624 | { |
625 | // This symbol does not have a version. | |
626 | this->add_from_object(dynobj, name, name_key, NULL, 0, false, sym); | |
627 | continue; | |
628 | } | |
629 | ||
630 | if (v >= version_map->size()) | |
631 | { | |
632 | fprintf(stderr, | |
633 | _("%s: %s: versym for symbol %zu out of range: %u\n"), | |
634 | program_name, dynobj->name().c_str(), i, v); | |
635 | gold_exit(false); | |
636 | } | |
637 | ||
638 | const char* version = (*version_map)[v]; | |
639 | if (version == NULL) | |
640 | { | |
641 | fprintf(stderr, _("%s: %s: versym for symbol %zu has no name: %u\n"), | |
642 | program_name, dynobj->name().c_str(), i, v); | |
643 | gold_exit(false); | |
644 | } | |
645 | ||
646 | Stringpool::Key version_key; | |
647 | version = this->namepool_.add(version, &version_key); | |
648 | ||
649 | // If this is an absolute symbol, and the version name and | |
650 | // symbol name are the same, then this is the version definition | |
651 | // symbol. These symbols exist to support using -u to pull in | |
652 | // particular versions. We do not want to record a version for | |
653 | // them. | |
654 | if (sym.get_st_shndx() == elfcpp::SHN_ABS && name_key == version_key) | |
655 | { | |
656 | this->add_from_object(dynobj, name, name_key, NULL, 0, false, sym); | |
657 | continue; | |
658 | } | |
659 | ||
660 | const bool def = !hidden && sym.get_st_shndx() != elfcpp::SHN_UNDEF; | |
661 | ||
662 | this->add_from_object(dynobj, name, name_key, version, version_key, | |
663 | def, sym); | |
664 | } | |
665 | } | |
666 | ||
ead1e424 ILT |
667 | // Create and return a specially defined symbol. If ONLY_IF_REF is |
668 | // true, then only create the symbol if there is a reference to it. | |
669 | ||
670 | template<int size, bool big_endian> | |
671 | Sized_symbol<size>* | |
14b31740 ILT |
672 | Symbol_table::define_special_symbol(const Target* target, const char* name, |
673 | const char* version, bool only_if_ref | |
593f47df | 674 | ACCEPT_SIZE_ENDIAN) |
ead1e424 | 675 | { |
a3ad94ed | 676 | gold_assert(this->size_ == size); |
ead1e424 ILT |
677 | |
678 | Symbol* oldsym; | |
679 | Sized_symbol<size>* sym; | |
680 | ||
681 | if (only_if_ref) | |
682 | { | |
14b31740 | 683 | oldsym = this->lookup(name, version); |
f6ce93d6 | 684 | if (oldsym == NULL || !oldsym->is_undefined()) |
ead1e424 ILT |
685 | return NULL; |
686 | sym = NULL; | |
687 | ||
14b31740 | 688 | // Canonicalize NAME and VERSION. |
ead1e424 | 689 | name = oldsym->name(); |
14b31740 | 690 | version = oldsym->version(); |
ead1e424 ILT |
691 | } |
692 | else | |
693 | { | |
14b31740 | 694 | // Canonicalize NAME and VERSION. |
f0641a0b ILT |
695 | Stringpool::Key name_key; |
696 | name = this->namepool_.add(name, &name_key); | |
ead1e424 | 697 | |
14b31740 ILT |
698 | Stringpool::Key version_key = 0; |
699 | if (version != NULL) | |
700 | version = this->namepool_.add(version, &version_key); | |
701 | ||
ead1e424 | 702 | Symbol* const snull = NULL; |
ead1e424 | 703 | std::pair<typename Symbol_table_type::iterator, bool> ins = |
14b31740 ILT |
704 | this->table_.insert(std::make_pair(std::make_pair(name_key, |
705 | version_key), | |
ead1e424 ILT |
706 | snull)); |
707 | ||
708 | if (!ins.second) | |
709 | { | |
14b31740 | 710 | // We already have a symbol table entry for NAME/VERSION. |
ead1e424 | 711 | oldsym = ins.first->second; |
a3ad94ed | 712 | gold_assert(oldsym != NULL); |
ead1e424 ILT |
713 | sym = NULL; |
714 | } | |
715 | else | |
716 | { | |
717 | // We haven't seen this symbol before. | |
a3ad94ed | 718 | gold_assert(ins.first->second == NULL); |
ead1e424 ILT |
719 | |
720 | if (!target->has_make_symbol()) | |
721 | sym = new Sized_symbol<size>(); | |
722 | else | |
723 | { | |
a3ad94ed ILT |
724 | gold_assert(target->get_size() == size); |
725 | gold_assert(target->is_big_endian() ? big_endian : !big_endian); | |
ead1e424 | 726 | typedef Sized_target<size, big_endian> My_target; |
14b31740 ILT |
727 | const My_target* sized_target = |
728 | static_cast<const My_target*>(target); | |
ead1e424 ILT |
729 | sym = sized_target->make_symbol(); |
730 | if (sym == NULL) | |
731 | return NULL; | |
732 | } | |
733 | ||
734 | ins.first->second = sym; | |
735 | oldsym = NULL; | |
736 | } | |
737 | } | |
738 | ||
739 | if (oldsym != NULL) | |
740 | { | |
a3ad94ed | 741 | gold_assert(sym == NULL); |
ead1e424 | 742 | |
593f47df ILT |
743 | sym = this->get_sized_symbol SELECT_SIZE_NAME(size) (oldsym |
744 | SELECT_SIZE(size)); | |
a3ad94ed | 745 | gold_assert(sym->source() == Symbol::FROM_OBJECT); |
16649710 ILT |
746 | const int old_shndx = sym->shndx(); |
747 | if (old_shndx != elfcpp::SHN_UNDEF | |
748 | && old_shndx != elfcpp::SHN_COMMON | |
ead1e424 ILT |
749 | && !sym->object()->is_dynamic()) |
750 | { | |
751 | fprintf(stderr, "%s: linker defined: multiple definition of %s\n", | |
752 | program_name, name); | |
753 | // FIXME: Report old location. Record that we have seen an | |
754 | // error. | |
755 | return NULL; | |
756 | } | |
757 | ||
758 | // Our new definition is going to override the old reference. | |
759 | } | |
760 | ||
761 | return sym; | |
762 | } | |
763 | ||
764 | // Define a symbol based on an Output_data. | |
765 | ||
14b31740 ILT |
766 | Symbol* |
767 | Symbol_table::define_in_output_data(const Target* target, const char* name, | |
768 | const char* version, Output_data* od, | |
ead1e424 ILT |
769 | uint64_t value, uint64_t symsize, |
770 | elfcpp::STT type, elfcpp::STB binding, | |
771 | elfcpp::STV visibility, | |
772 | unsigned char nonvis, | |
773 | bool offset_is_from_end, | |
774 | bool only_if_ref) | |
775 | { | |
a3ad94ed | 776 | gold_assert(target->get_size() == this->size_); |
ead1e424 | 777 | if (this->size_ == 32) |
14b31740 ILT |
778 | return this->do_define_in_output_data<32>(target, name, version, od, value, |
779 | symsize, type, binding, | |
780 | visibility, nonvis, | |
781 | offset_is_from_end, only_if_ref); | |
ead1e424 | 782 | else if (this->size_ == 64) |
14b31740 ILT |
783 | return this->do_define_in_output_data<64>(target, name, version, od, value, |
784 | symsize, type, binding, | |
785 | visibility, nonvis, | |
786 | offset_is_from_end, only_if_ref); | |
ead1e424 | 787 | else |
a3ad94ed | 788 | gold_unreachable(); |
ead1e424 ILT |
789 | } |
790 | ||
791 | // Define a symbol in an Output_data, sized version. | |
792 | ||
793 | template<int size> | |
14b31740 | 794 | Sized_symbol<size>* |
ead1e424 | 795 | Symbol_table::do_define_in_output_data( |
14b31740 | 796 | const Target* target, |
ead1e424 | 797 | const char* name, |
14b31740 | 798 | const char* version, |
ead1e424 ILT |
799 | Output_data* od, |
800 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
801 | typename elfcpp::Elf_types<size>::Elf_WXword symsize, | |
802 | elfcpp::STT type, | |
803 | elfcpp::STB binding, | |
804 | elfcpp::STV visibility, | |
805 | unsigned char nonvis, | |
806 | bool offset_is_from_end, | |
807 | bool only_if_ref) | |
808 | { | |
809 | Sized_symbol<size>* sym; | |
810 | ||
811 | if (target->is_big_endian()) | |
593f47df | 812 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) ( |
14b31740 | 813 | target, name, version, only_if_ref |
593f47df | 814 | SELECT_SIZE_ENDIAN(size, true)); |
ead1e424 | 815 | else |
593f47df | 816 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) ( |
14b31740 | 817 | target, name, version, only_if_ref |
593f47df | 818 | SELECT_SIZE_ENDIAN(size, false)); |
ead1e424 ILT |
819 | |
820 | if (sym == NULL) | |
14b31740 | 821 | return NULL; |
ead1e424 ILT |
822 | |
823 | sym->init(name, od, value, symsize, type, binding, visibility, nonvis, | |
824 | offset_is_from_end); | |
14b31740 ILT |
825 | |
826 | return sym; | |
ead1e424 ILT |
827 | } |
828 | ||
829 | // Define a symbol based on an Output_segment. | |
830 | ||
14b31740 ILT |
831 | Symbol* |
832 | Symbol_table::define_in_output_segment(const Target* target, const char* name, | |
833 | const char* version, Output_segment* os, | |
ead1e424 ILT |
834 | uint64_t value, uint64_t symsize, |
835 | elfcpp::STT type, elfcpp::STB binding, | |
836 | elfcpp::STV visibility, | |
837 | unsigned char nonvis, | |
838 | Symbol::Segment_offset_base offset_base, | |
839 | bool only_if_ref) | |
840 | { | |
a3ad94ed | 841 | gold_assert(target->get_size() == this->size_); |
ead1e424 | 842 | if (this->size_ == 32) |
14b31740 ILT |
843 | return this->do_define_in_output_segment<32>(target, name, version, os, |
844 | value, symsize, type, binding, | |
845 | visibility, nonvis, | |
846 | offset_base, only_if_ref); | |
ead1e424 | 847 | else if (this->size_ == 64) |
14b31740 ILT |
848 | return this->do_define_in_output_segment<64>(target, name, version, os, |
849 | value, symsize, type, binding, | |
850 | visibility, nonvis, | |
851 | offset_base, only_if_ref); | |
ead1e424 | 852 | else |
a3ad94ed | 853 | gold_unreachable(); |
ead1e424 ILT |
854 | } |
855 | ||
856 | // Define a symbol in an Output_segment, sized version. | |
857 | ||
858 | template<int size> | |
14b31740 | 859 | Sized_symbol<size>* |
ead1e424 | 860 | Symbol_table::do_define_in_output_segment( |
14b31740 | 861 | const Target* target, |
ead1e424 | 862 | const char* name, |
14b31740 | 863 | const char* version, |
ead1e424 ILT |
864 | Output_segment* os, |
865 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
866 | typename elfcpp::Elf_types<size>::Elf_WXword symsize, | |
867 | elfcpp::STT type, | |
868 | elfcpp::STB binding, | |
869 | elfcpp::STV visibility, | |
870 | unsigned char nonvis, | |
871 | Symbol::Segment_offset_base offset_base, | |
872 | bool only_if_ref) | |
873 | { | |
874 | Sized_symbol<size>* sym; | |
875 | ||
876 | if (target->is_big_endian()) | |
593f47df | 877 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) ( |
14b31740 | 878 | target, name, version, only_if_ref |
593f47df | 879 | SELECT_SIZE_ENDIAN(size, true)); |
ead1e424 | 880 | else |
593f47df | 881 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) ( |
14b31740 | 882 | target, name, version, only_if_ref |
593f47df | 883 | SELECT_SIZE_ENDIAN(size, false)); |
ead1e424 ILT |
884 | |
885 | if (sym == NULL) | |
14b31740 | 886 | return NULL; |
ead1e424 ILT |
887 | |
888 | sym->init(name, os, value, symsize, type, binding, visibility, nonvis, | |
889 | offset_base); | |
14b31740 ILT |
890 | |
891 | return sym; | |
ead1e424 ILT |
892 | } |
893 | ||
894 | // Define a special symbol with a constant value. It is a multiple | |
895 | // definition error if this symbol is already defined. | |
896 | ||
14b31740 ILT |
897 | Symbol* |
898 | Symbol_table::define_as_constant(const Target* target, const char* name, | |
899 | const char* version, uint64_t value, | |
900 | uint64_t symsize, elfcpp::STT type, | |
901 | elfcpp::STB binding, elfcpp::STV visibility, | |
902 | unsigned char nonvis, bool only_if_ref) | |
ead1e424 | 903 | { |
a3ad94ed | 904 | gold_assert(target->get_size() == this->size_); |
ead1e424 | 905 | if (this->size_ == 32) |
14b31740 ILT |
906 | return this->do_define_as_constant<32>(target, name, version, value, |
907 | symsize, type, binding, visibility, | |
908 | nonvis, only_if_ref); | |
ead1e424 | 909 | else if (this->size_ == 64) |
14b31740 ILT |
910 | return this->do_define_as_constant<64>(target, name, version, value, |
911 | symsize, type, binding, visibility, | |
912 | nonvis, only_if_ref); | |
ead1e424 | 913 | else |
a3ad94ed | 914 | gold_unreachable(); |
ead1e424 ILT |
915 | } |
916 | ||
917 | // Define a symbol as a constant, sized version. | |
918 | ||
919 | template<int size> | |
14b31740 | 920 | Sized_symbol<size>* |
ead1e424 | 921 | Symbol_table::do_define_as_constant( |
14b31740 | 922 | const Target* target, |
ead1e424 | 923 | const char* name, |
14b31740 | 924 | const char* version, |
ead1e424 ILT |
925 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
926 | typename elfcpp::Elf_types<size>::Elf_WXword symsize, | |
927 | elfcpp::STT type, | |
928 | elfcpp::STB binding, | |
929 | elfcpp::STV visibility, | |
930 | unsigned char nonvis, | |
931 | bool only_if_ref) | |
932 | { | |
933 | Sized_symbol<size>* sym; | |
934 | ||
935 | if (target->is_big_endian()) | |
593f47df | 936 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) ( |
14b31740 | 937 | target, name, version, only_if_ref |
593f47df | 938 | SELECT_SIZE_ENDIAN(size, true)); |
ead1e424 | 939 | else |
593f47df | 940 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) ( |
14b31740 | 941 | target, name, version, only_if_ref |
593f47df | 942 | SELECT_SIZE_ENDIAN(size, false)); |
ead1e424 ILT |
943 | |
944 | if (sym == NULL) | |
14b31740 | 945 | return NULL; |
ead1e424 ILT |
946 | |
947 | sym->init(name, value, symsize, type, binding, visibility, nonvis); | |
14b31740 ILT |
948 | |
949 | return sym; | |
ead1e424 ILT |
950 | } |
951 | ||
952 | // Define a set of symbols in output sections. | |
953 | ||
954 | void | |
14b31740 ILT |
955 | Symbol_table::define_symbols(const Layout* layout, const Target* target, |
956 | int count, const Define_symbol_in_section* p) | |
ead1e424 ILT |
957 | { |
958 | for (int i = 0; i < count; ++i, ++p) | |
959 | { | |
960 | Output_section* os = layout->find_output_section(p->output_section); | |
961 | if (os != NULL) | |
14b31740 ILT |
962 | this->define_in_output_data(target, p->name, NULL, os, p->value, |
963 | p->size, p->type, p->binding, | |
964 | p->visibility, p->nonvis, | |
965 | p->offset_is_from_end, p->only_if_ref); | |
ead1e424 | 966 | else |
14b31740 | 967 | this->define_as_constant(target, p->name, NULL, 0, p->size, p->type, |
ead1e424 ILT |
968 | p->binding, p->visibility, p->nonvis, |
969 | p->only_if_ref); | |
970 | } | |
971 | } | |
972 | ||
973 | // Define a set of symbols in output segments. | |
974 | ||
975 | void | |
14b31740 ILT |
976 | Symbol_table::define_symbols(const Layout* layout, const Target* target, |
977 | int count, const Define_symbol_in_segment* p) | |
ead1e424 ILT |
978 | { |
979 | for (int i = 0; i < count; ++i, ++p) | |
980 | { | |
981 | Output_segment* os = layout->find_output_segment(p->segment_type, | |
982 | p->segment_flags_set, | |
983 | p->segment_flags_clear); | |
984 | if (os != NULL) | |
14b31740 ILT |
985 | this->define_in_output_segment(target, p->name, NULL, os, p->value, |
986 | p->size, p->type, p->binding, | |
987 | p->visibility, p->nonvis, | |
988 | p->offset_base, p->only_if_ref); | |
ead1e424 | 989 | else |
14b31740 | 990 | this->define_as_constant(target, p->name, NULL, 0, p->size, p->type, |
ead1e424 ILT |
991 | p->binding, p->visibility, p->nonvis, |
992 | p->only_if_ref); | |
993 | } | |
994 | } | |
995 | ||
a3ad94ed ILT |
996 | // Set the dynamic symbol indexes. INDEX is the index of the first |
997 | // global dynamic symbol. Pointers to the symbols are stored into the | |
998 | // vector SYMS. The names are added to DYNPOOL. This returns an | |
999 | // updated dynamic symbol index. | |
1000 | ||
1001 | unsigned int | |
14b31740 ILT |
1002 | Symbol_table::set_dynsym_indexes(const General_options* options, |
1003 | const Target* target, | |
1004 | unsigned int index, | |
a3ad94ed | 1005 | std::vector<Symbol*>* syms, |
14b31740 ILT |
1006 | Stringpool* dynpool, |
1007 | Versions* versions) | |
a3ad94ed ILT |
1008 | { |
1009 | for (Symbol_table_type::iterator p = this->table_.begin(); | |
1010 | p != this->table_.end(); | |
1011 | ++p) | |
1012 | { | |
1013 | Symbol* sym = p->second; | |
16649710 ILT |
1014 | |
1015 | // Note that SYM may already have a dynamic symbol index, since | |
1016 | // some symbols appear more than once in the symbol table, with | |
1017 | // and without a version. | |
1018 | ||
a6badf5a ILT |
1019 | if (!sym->needs_dynsym_entry() |
1020 | && (!options->export_dynamic() | |
1021 | || !sym->in_reg() | |
1022 | || !sym->is_externally_visible())) | |
16649710 ILT |
1023 | sym->set_dynsym_index(-1U); |
1024 | else if (!sym->has_dynsym_index()) | |
a3ad94ed ILT |
1025 | { |
1026 | sym->set_dynsym_index(index); | |
1027 | ++index; | |
1028 | syms->push_back(sym); | |
1029 | dynpool->add(sym->name(), NULL); | |
14b31740 ILT |
1030 | |
1031 | // Record any version information. | |
1032 | if (sym->version() != NULL) | |
1033 | versions->record_version(options, dynpool, sym); | |
a3ad94ed ILT |
1034 | } |
1035 | } | |
1036 | ||
14b31740 ILT |
1037 | // Finish up the versions. In some cases this may add new dynamic |
1038 | // symbols. | |
1039 | index = versions->finalize(target, this, index, syms); | |
1040 | ||
a3ad94ed ILT |
1041 | return index; |
1042 | } | |
1043 | ||
c06b7b0b ILT |
1044 | // Set the final values for all the symbols. The index of the first |
1045 | // global symbol in the output file is INDEX. Record the file offset | |
75f65a3e | 1046 | // OFF. Add their names to POOL. Return the new file offset. |
54dc6425 | 1047 | |
75f65a3e | 1048 | off_t |
16649710 ILT |
1049 | Symbol_table::finalize(unsigned int index, off_t off, off_t dynoff, |
1050 | size_t dyn_global_index, size_t dyncount, | |
1051 | Stringpool* pool) | |
54dc6425 | 1052 | { |
f6ce93d6 ILT |
1053 | off_t ret; |
1054 | ||
a3ad94ed | 1055 | gold_assert(index != 0); |
c06b7b0b ILT |
1056 | this->first_global_index_ = index; |
1057 | ||
16649710 ILT |
1058 | this->dynamic_offset_ = dynoff; |
1059 | this->first_dynamic_global_index_ = dyn_global_index; | |
1060 | this->dynamic_count_ = dyncount; | |
1061 | ||
75f65a3e | 1062 | if (this->size_ == 32) |
c06b7b0b | 1063 | ret = this->sized_finalize<32>(index, off, pool); |
61ba1cf9 | 1064 | else if (this->size_ == 64) |
c06b7b0b | 1065 | ret = this->sized_finalize<64>(index, off, pool); |
61ba1cf9 | 1066 | else |
a3ad94ed | 1067 | gold_unreachable(); |
f6ce93d6 ILT |
1068 | |
1069 | // Now that we have the final symbol table, we can reliably note | |
1070 | // which symbols should get warnings. | |
1071 | this->warnings_.note_warnings(this); | |
1072 | ||
1073 | return ret; | |
75f65a3e ILT |
1074 | } |
1075 | ||
ead1e424 ILT |
1076 | // Set the final value for all the symbols. This is called after |
1077 | // Layout::finalize, so all the output sections have their final | |
1078 | // address. | |
75f65a3e ILT |
1079 | |
1080 | template<int size> | |
1081 | off_t | |
c06b7b0b | 1082 | Symbol_table::sized_finalize(unsigned index, off_t off, Stringpool* pool) |
75f65a3e | 1083 | { |
ead1e424 | 1084 | off = align_address(off, size >> 3); |
75f65a3e ILT |
1085 | this->offset_ = off; |
1086 | ||
c06b7b0b ILT |
1087 | size_t orig_index = index; |
1088 | ||
75f65a3e | 1089 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; |
c06b7b0b ILT |
1090 | for (Symbol_table_type::iterator p = this->table_.begin(); |
1091 | p != this->table_.end(); | |
1092 | ++p) | |
54dc6425 | 1093 | { |
75f65a3e | 1094 | Sized_symbol<size>* sym = static_cast<Sized_symbol<size>*>(p->second); |
54dc6425 | 1095 | |
75f65a3e | 1096 | // FIXME: Here we need to decide which symbols should go into |
a3ad94ed ILT |
1097 | // the output file, based on --strip. |
1098 | ||
1099 | // The default version of a symbol may appear twice in the | |
1100 | // symbol table. We only need to finalize it once. | |
1101 | if (sym->has_symtab_index()) | |
1102 | continue; | |
75f65a3e | 1103 | |
008db82e ILT |
1104 | if (!sym->in_reg()) |
1105 | { | |
1106 | gold_assert(!sym->has_symtab_index()); | |
1107 | sym->set_symtab_index(-1U); | |
1108 | gold_assert(sym->dynsym_index() == -1U); | |
1109 | continue; | |
1110 | } | |
1111 | ||
ead1e424 | 1112 | typename Sized_symbol<size>::Value_type value; |
75f65a3e | 1113 | |
ead1e424 | 1114 | switch (sym->source()) |
75f65a3e | 1115 | { |
ead1e424 ILT |
1116 | case Symbol::FROM_OBJECT: |
1117 | { | |
16649710 | 1118 | unsigned int shndx = sym->shndx(); |
ead1e424 ILT |
1119 | |
1120 | // FIXME: We need some target specific support here. | |
16649710 ILT |
1121 | if (shndx >= elfcpp::SHN_LORESERVE |
1122 | && shndx != elfcpp::SHN_ABS) | |
ead1e424 ILT |
1123 | { |
1124 | fprintf(stderr, _("%s: %s: unsupported symbol section 0x%x\n"), | |
16649710 | 1125 | program_name, sym->name(), shndx); |
ead1e424 ILT |
1126 | gold_exit(false); |
1127 | } | |
1128 | ||
f6ce93d6 ILT |
1129 | Object* symobj = sym->object(); |
1130 | if (symobj->is_dynamic()) | |
1131 | { | |
1132 | value = 0; | |
16649710 | 1133 | shndx = elfcpp::SHN_UNDEF; |
f6ce93d6 | 1134 | } |
16649710 | 1135 | else if (shndx == elfcpp::SHN_UNDEF) |
ead1e424 | 1136 | value = 0; |
16649710 | 1137 | else if (shndx == elfcpp::SHN_ABS) |
ead1e424 ILT |
1138 | value = sym->value(); |
1139 | else | |
1140 | { | |
f6ce93d6 | 1141 | Relobj* relobj = static_cast<Relobj*>(symobj); |
ead1e424 | 1142 | off_t secoff; |
16649710 | 1143 | Output_section* os = relobj->output_section(shndx, &secoff); |
ead1e424 ILT |
1144 | |
1145 | if (os == NULL) | |
1146 | { | |
c06b7b0b | 1147 | sym->set_symtab_index(-1U); |
16649710 | 1148 | gold_assert(sym->dynsym_index() == -1U); |
ead1e424 ILT |
1149 | continue; |
1150 | } | |
1151 | ||
1152 | value = sym->value() + os->address() + secoff; | |
1153 | } | |
1154 | } | |
1155 | break; | |
1156 | ||
1157 | case Symbol::IN_OUTPUT_DATA: | |
1158 | { | |
1159 | Output_data* od = sym->output_data(); | |
1160 | value = sym->value() + od->address(); | |
1161 | if (sym->offset_is_from_end()) | |
1162 | value += od->data_size(); | |
1163 | } | |
1164 | break; | |
1165 | ||
1166 | case Symbol::IN_OUTPUT_SEGMENT: | |
1167 | { | |
1168 | Output_segment* os = sym->output_segment(); | |
1169 | value = sym->value() + os->vaddr(); | |
1170 | switch (sym->offset_base()) | |
1171 | { | |
1172 | case Symbol::SEGMENT_START: | |
1173 | break; | |
1174 | case Symbol::SEGMENT_END: | |
1175 | value += os->memsz(); | |
1176 | break; | |
1177 | case Symbol::SEGMENT_BSS: | |
1178 | value += os->filesz(); | |
1179 | break; | |
1180 | default: | |
a3ad94ed | 1181 | gold_unreachable(); |
ead1e424 ILT |
1182 | } |
1183 | } | |
1184 | break; | |
1185 | ||
1186 | case Symbol::CONSTANT: | |
1187 | value = sym->value(); | |
1188 | break; | |
1189 | ||
1190 | default: | |
a3ad94ed | 1191 | gold_unreachable(); |
54dc6425 | 1192 | } |
ead1e424 ILT |
1193 | |
1194 | sym->set_value(value); | |
c06b7b0b | 1195 | sym->set_symtab_index(index); |
f0641a0b | 1196 | pool->add(sym->name(), NULL); |
c06b7b0b | 1197 | ++index; |
ead1e424 | 1198 | off += sym_size; |
54dc6425 | 1199 | } |
75f65a3e | 1200 | |
c06b7b0b | 1201 | this->output_count_ = index - orig_index; |
61ba1cf9 | 1202 | |
75f65a3e | 1203 | return off; |
54dc6425 ILT |
1204 | } |
1205 | ||
61ba1cf9 ILT |
1206 | // Write out the global symbols. |
1207 | ||
1208 | void | |
1209 | Symbol_table::write_globals(const Target* target, const Stringpool* sympool, | |
16649710 | 1210 | const Stringpool* dynpool, Output_file* of) const |
61ba1cf9 ILT |
1211 | { |
1212 | if (this->size_ == 32) | |
1213 | { | |
1214 | if (target->is_big_endian()) | |
16649710 | 1215 | this->sized_write_globals<32, true>(target, sympool, dynpool, of); |
61ba1cf9 | 1216 | else |
16649710 | 1217 | this->sized_write_globals<32, false>(target, sympool, dynpool, of); |
61ba1cf9 ILT |
1218 | } |
1219 | else if (this->size_ == 64) | |
1220 | { | |
1221 | if (target->is_big_endian()) | |
16649710 | 1222 | this->sized_write_globals<64, true>(target, sympool, dynpool, of); |
61ba1cf9 | 1223 | else |
16649710 | 1224 | this->sized_write_globals<64, false>(target, sympool, dynpool, of); |
61ba1cf9 ILT |
1225 | } |
1226 | else | |
a3ad94ed | 1227 | gold_unreachable(); |
61ba1cf9 ILT |
1228 | } |
1229 | ||
1230 | // Write out the global symbols. | |
1231 | ||
1232 | template<int size, bool big_endian> | |
1233 | void | |
1234 | Symbol_table::sized_write_globals(const Target*, | |
1235 | const Stringpool* sympool, | |
16649710 | 1236 | const Stringpool* dynpool, |
61ba1cf9 ILT |
1237 | Output_file* of) const |
1238 | { | |
1239 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; | |
c06b7b0b ILT |
1240 | unsigned int index = this->first_global_index_; |
1241 | const off_t oview_size = this->output_count_ * sym_size; | |
16649710 ILT |
1242 | unsigned char* const psyms = of->get_output_view(this->offset_, oview_size); |
1243 | ||
1244 | unsigned int dynamic_count = this->dynamic_count_; | |
1245 | off_t dynamic_size = dynamic_count * sym_size; | |
1246 | unsigned int first_dynamic_global_index = this->first_dynamic_global_index_; | |
1247 | unsigned char* dynamic_view; | |
1248 | if (this->dynamic_offset_ == 0) | |
1249 | dynamic_view = NULL; | |
1250 | else | |
1251 | dynamic_view = of->get_output_view(this->dynamic_offset_, dynamic_size); | |
c06b7b0b | 1252 | |
61ba1cf9 ILT |
1253 | unsigned char* ps = psyms; |
1254 | for (Symbol_table_type::const_iterator p = this->table_.begin(); | |
1255 | p != this->table_.end(); | |
1256 | ++p) | |
1257 | { | |
1258 | Sized_symbol<size>* sym = static_cast<Sized_symbol<size>*>(p->second); | |
1259 | ||
a3ad94ed | 1260 | unsigned int sym_index = sym->symtab_index(); |
16649710 ILT |
1261 | unsigned int dynsym_index; |
1262 | if (dynamic_view == NULL) | |
1263 | dynsym_index = -1U; | |
1264 | else | |
1265 | dynsym_index = sym->dynsym_index(); | |
1266 | ||
1267 | if (sym_index == -1U && dynsym_index == -1U) | |
a3ad94ed ILT |
1268 | { |
1269 | // This symbol is not included in the output file. | |
1270 | continue; | |
1271 | } | |
16649710 ILT |
1272 | |
1273 | if (sym_index == index) | |
1274 | ++index; | |
1275 | else if (sym_index != -1U) | |
a3ad94ed ILT |
1276 | { |
1277 | // We have already seen this symbol, because it has a | |
1278 | // default version. | |
1279 | gold_assert(sym_index < index); | |
16649710 ILT |
1280 | if (dynsym_index == -1U) |
1281 | continue; | |
1282 | sym_index = -1U; | |
a3ad94ed | 1283 | } |
c06b7b0b | 1284 | |
ead1e424 ILT |
1285 | unsigned int shndx; |
1286 | switch (sym->source()) | |
1287 | { | |
1288 | case Symbol::FROM_OBJECT: | |
1289 | { | |
16649710 | 1290 | unsigned int in_shndx = sym->shndx(); |
ead1e424 ILT |
1291 | |
1292 | // FIXME: We need some target specific support here. | |
16649710 ILT |
1293 | if (in_shndx >= elfcpp::SHN_LORESERVE |
1294 | && in_shndx != elfcpp::SHN_ABS) | |
ead1e424 ILT |
1295 | { |
1296 | fprintf(stderr, _("%s: %s: unsupported symbol section 0x%x\n"), | |
16649710 | 1297 | program_name, sym->name(), in_shndx); |
ead1e424 ILT |
1298 | gold_exit(false); |
1299 | } | |
1300 | ||
f6ce93d6 ILT |
1301 | Object* symobj = sym->object(); |
1302 | if (symobj->is_dynamic()) | |
1303 | { | |
1304 | // FIXME. | |
1305 | shndx = elfcpp::SHN_UNDEF; | |
1306 | } | |
16649710 ILT |
1307 | else if (in_shndx == elfcpp::SHN_UNDEF |
1308 | || in_shndx == elfcpp::SHN_ABS) | |
1309 | shndx = in_shndx; | |
ead1e424 ILT |
1310 | else |
1311 | { | |
f6ce93d6 | 1312 | Relobj* relobj = static_cast<Relobj*>(symobj); |
ead1e424 | 1313 | off_t secoff; |
16649710 | 1314 | Output_section* os = relobj->output_section(in_shndx, &secoff); |
a3ad94ed | 1315 | gold_assert(os != NULL); |
ead1e424 ILT |
1316 | shndx = os->out_shndx(); |
1317 | } | |
1318 | } | |
1319 | break; | |
1320 | ||
1321 | case Symbol::IN_OUTPUT_DATA: | |
1322 | shndx = sym->output_data()->out_shndx(); | |
1323 | break; | |
1324 | ||
1325 | case Symbol::IN_OUTPUT_SEGMENT: | |
1326 | shndx = elfcpp::SHN_ABS; | |
1327 | break; | |
1328 | ||
1329 | case Symbol::CONSTANT: | |
1330 | shndx = elfcpp::SHN_ABS; | |
1331 | break; | |
1332 | ||
1333 | default: | |
a3ad94ed | 1334 | gold_unreachable(); |
ead1e424 | 1335 | } |
61ba1cf9 | 1336 | |
16649710 ILT |
1337 | if (sym_index != -1U) |
1338 | { | |
6a469986 ILT |
1339 | this->sized_write_symbol SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( |
1340 | sym, shndx, sympool, ps | |
1341 | SELECT_SIZE_ENDIAN(size, big_endian)); | |
16649710 ILT |
1342 | ps += sym_size; |
1343 | } | |
61ba1cf9 | 1344 | |
16649710 ILT |
1345 | if (dynsym_index != -1U) |
1346 | { | |
1347 | dynsym_index -= first_dynamic_global_index; | |
1348 | gold_assert(dynsym_index < dynamic_count); | |
1349 | unsigned char* pd = dynamic_view + (dynsym_index * sym_size); | |
6a469986 ILT |
1350 | this->sized_write_symbol SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( |
1351 | sym, shndx, dynpool, pd | |
1352 | SELECT_SIZE_ENDIAN(size, big_endian)); | |
16649710 | 1353 | } |
61ba1cf9 ILT |
1354 | } |
1355 | ||
a3ad94ed | 1356 | gold_assert(ps - psyms == oview_size); |
c06b7b0b ILT |
1357 | |
1358 | of->write_output_view(this->offset_, oview_size, psyms); | |
16649710 ILT |
1359 | if (dynamic_view != NULL) |
1360 | of->write_output_view(this->dynamic_offset_, dynamic_size, dynamic_view); | |
1361 | } | |
1362 | ||
1363 | // Write out the symbol SYM, in section SHNDX, to P. POOL is the | |
1364 | // strtab holding the name. | |
1365 | ||
1366 | template<int size, bool big_endian> | |
1367 | void | |
1368 | Symbol_table::sized_write_symbol(Sized_symbol<size>* sym, | |
1369 | unsigned int shndx, | |
1370 | const Stringpool* pool, | |
6a469986 ILT |
1371 | unsigned char* p |
1372 | ACCEPT_SIZE_ENDIAN) const | |
16649710 ILT |
1373 | { |
1374 | elfcpp::Sym_write<size, big_endian> osym(p); | |
1375 | osym.put_st_name(pool->get_offset(sym->name())); | |
1376 | osym.put_st_value(sym->value()); | |
1377 | osym.put_st_size(sym->symsize()); | |
1378 | osym.put_st_info(elfcpp::elf_st_info(sym->binding(), sym->type())); | |
1379 | osym.put_st_other(elfcpp::elf_st_other(sym->visibility(), sym->nonvis())); | |
1380 | osym.put_st_shndx(shndx); | |
61ba1cf9 ILT |
1381 | } |
1382 | ||
a3ad94ed ILT |
1383 | // Write out a section symbol. Return the update offset. |
1384 | ||
1385 | void | |
1386 | Symbol_table::write_section_symbol(const Target* target, | |
1387 | const Output_section *os, | |
1388 | Output_file* of, | |
1389 | off_t offset) const | |
1390 | { | |
1391 | if (this->size_ == 32) | |
1392 | { | |
1393 | if (target->is_big_endian()) | |
1394 | this->sized_write_section_symbol<32, true>(os, of, offset); | |
1395 | else | |
1396 | this->sized_write_section_symbol<32, false>(os, of, offset); | |
1397 | } | |
1398 | else if (this->size_ == 64) | |
1399 | { | |
1400 | if (target->is_big_endian()) | |
1401 | this->sized_write_section_symbol<64, true>(os, of, offset); | |
1402 | else | |
1403 | this->sized_write_section_symbol<64, false>(os, of, offset); | |
1404 | } | |
1405 | else | |
1406 | gold_unreachable(); | |
1407 | } | |
1408 | ||
1409 | // Write out a section symbol, specialized for size and endianness. | |
1410 | ||
1411 | template<int size, bool big_endian> | |
1412 | void | |
1413 | Symbol_table::sized_write_section_symbol(const Output_section* os, | |
1414 | Output_file* of, | |
1415 | off_t offset) const | |
1416 | { | |
1417 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; | |
1418 | ||
1419 | unsigned char* pov = of->get_output_view(offset, sym_size); | |
1420 | ||
1421 | elfcpp::Sym_write<size, big_endian> osym(pov); | |
1422 | osym.put_st_name(0); | |
1423 | osym.put_st_value(os->address()); | |
1424 | osym.put_st_size(0); | |
1425 | osym.put_st_info(elfcpp::elf_st_info(elfcpp::STB_LOCAL, | |
1426 | elfcpp::STT_SECTION)); | |
1427 | osym.put_st_other(elfcpp::elf_st_other(elfcpp::STV_DEFAULT, 0)); | |
1428 | osym.put_st_shndx(os->out_shndx()); | |
1429 | ||
1430 | of->write_output_view(offset, sym_size, pov); | |
1431 | } | |
1432 | ||
f6ce93d6 ILT |
1433 | // Warnings functions. |
1434 | ||
1435 | // Add a new warning. | |
1436 | ||
1437 | void | |
1438 | Warnings::add_warning(Symbol_table* symtab, const char* name, Object* obj, | |
1439 | unsigned int shndx) | |
1440 | { | |
1441 | name = symtab->canonicalize_name(name); | |
1442 | this->warnings_[name].set(obj, shndx); | |
1443 | } | |
1444 | ||
1445 | // Look through the warnings and mark the symbols for which we should | |
1446 | // warn. This is called during Layout::finalize when we know the | |
1447 | // sources for all the symbols. | |
1448 | ||
1449 | void | |
1450 | Warnings::note_warnings(Symbol_table* symtab) | |
1451 | { | |
1452 | for (Warning_table::iterator p = this->warnings_.begin(); | |
1453 | p != this->warnings_.end(); | |
1454 | ++p) | |
1455 | { | |
1456 | Symbol* sym = symtab->lookup(p->first, NULL); | |
1457 | if (sym != NULL | |
1458 | && sym->source() == Symbol::FROM_OBJECT | |
1459 | && sym->object() == p->second.object) | |
1460 | { | |
1461 | sym->set_has_warning(); | |
1462 | ||
1463 | // Read the section contents to get the warning text. It | |
1464 | // would be nicer if we only did this if we have to actually | |
1465 | // issue a warning. Unfortunately, warnings are issued as | |
1466 | // we relocate sections. That means that we can not lock | |
1467 | // the object then, as we might try to issue the same | |
1468 | // warning multiple times simultaneously. | |
645f8123 ILT |
1469 | { |
1470 | Task_locker_obj<Object> tl(*p->second.object); | |
1471 | const unsigned char* c; | |
1472 | off_t len; | |
1473 | c = p->second.object->section_contents(p->second.shndx, &len); | |
1474 | p->second.set_text(reinterpret_cast<const char*>(c), len); | |
1475 | } | |
f6ce93d6 ILT |
1476 | } |
1477 | } | |
1478 | } | |
1479 | ||
1480 | // Issue a warning. This is called when we see a relocation against a | |
1481 | // symbol for which has a warning. | |
1482 | ||
1483 | void | |
c06b7b0b | 1484 | Warnings::issue_warning(const Symbol* sym, const std::string& location) const |
f6ce93d6 | 1485 | { |
a3ad94ed | 1486 | gold_assert(sym->has_warning()); |
f6ce93d6 | 1487 | Warning_table::const_iterator p = this->warnings_.find(sym->name()); |
a3ad94ed | 1488 | gold_assert(p != this->warnings_.end()); |
f6ce93d6 ILT |
1489 | fprintf(stderr, _("%s: %s: warning: %s\n"), program_name, location.c_str(), |
1490 | p->second.text.c_str()); | |
1491 | } | |
1492 | ||
14bfc3f5 ILT |
1493 | // Instantiate the templates we need. We could use the configure |
1494 | // script to restrict this to only the ones needed for implemented | |
1495 | // targets. | |
1496 | ||
1497 | template | |
1498 | void | |
dbe717ef ILT |
1499 | Symbol_table::add_from_relobj<32, true>( |
1500 | Sized_relobj<32, true>* relobj, | |
f6ce93d6 | 1501 | const unsigned char* syms, |
14bfc3f5 ILT |
1502 | size_t count, |
1503 | const char* sym_names, | |
1504 | size_t sym_name_size, | |
1505 | Symbol** sympointers); | |
1506 | ||
1507 | template | |
1508 | void | |
dbe717ef ILT |
1509 | Symbol_table::add_from_relobj<32, false>( |
1510 | Sized_relobj<32, false>* relobj, | |
f6ce93d6 | 1511 | const unsigned char* syms, |
14bfc3f5 ILT |
1512 | size_t count, |
1513 | const char* sym_names, | |
1514 | size_t sym_name_size, | |
1515 | Symbol** sympointers); | |
1516 | ||
1517 | template | |
1518 | void | |
dbe717ef ILT |
1519 | Symbol_table::add_from_relobj<64, true>( |
1520 | Sized_relobj<64, true>* relobj, | |
f6ce93d6 | 1521 | const unsigned char* syms, |
14bfc3f5 ILT |
1522 | size_t count, |
1523 | const char* sym_names, | |
1524 | size_t sym_name_size, | |
1525 | Symbol** sympointers); | |
1526 | ||
1527 | template | |
1528 | void | |
dbe717ef ILT |
1529 | Symbol_table::add_from_relobj<64, false>( |
1530 | Sized_relobj<64, false>* relobj, | |
f6ce93d6 | 1531 | const unsigned char* syms, |
14bfc3f5 ILT |
1532 | size_t count, |
1533 | const char* sym_names, | |
1534 | size_t sym_name_size, | |
1535 | Symbol** sympointers); | |
1536 | ||
dbe717ef ILT |
1537 | template |
1538 | void | |
1539 | Symbol_table::add_from_dynobj<32, true>( | |
1540 | Sized_dynobj<32, true>* dynobj, | |
1541 | const unsigned char* syms, | |
1542 | size_t count, | |
1543 | const char* sym_names, | |
1544 | size_t sym_name_size, | |
1545 | const unsigned char* versym, | |
1546 | size_t versym_size, | |
1547 | const std::vector<const char*>* version_map); | |
1548 | ||
1549 | template | |
1550 | void | |
1551 | Symbol_table::add_from_dynobj<32, false>( | |
1552 | Sized_dynobj<32, false>* dynobj, | |
1553 | const unsigned char* syms, | |
1554 | size_t count, | |
1555 | const char* sym_names, | |
1556 | size_t sym_name_size, | |
1557 | const unsigned char* versym, | |
1558 | size_t versym_size, | |
1559 | const std::vector<const char*>* version_map); | |
1560 | ||
1561 | template | |
1562 | void | |
1563 | Symbol_table::add_from_dynobj<64, true>( | |
1564 | Sized_dynobj<64, true>* dynobj, | |
1565 | const unsigned char* syms, | |
1566 | size_t count, | |
1567 | const char* sym_names, | |
1568 | size_t sym_name_size, | |
1569 | const unsigned char* versym, | |
1570 | size_t versym_size, | |
1571 | const std::vector<const char*>* version_map); | |
1572 | ||
1573 | template | |
1574 | void | |
1575 | Symbol_table::add_from_dynobj<64, false>( | |
1576 | Sized_dynobj<64, false>* dynobj, | |
1577 | const unsigned char* syms, | |
1578 | size_t count, | |
1579 | const char* sym_names, | |
1580 | size_t sym_name_size, | |
1581 | const unsigned char* versym, | |
1582 | size_t versym_size, | |
1583 | const std::vector<const char*>* version_map); | |
1584 | ||
14bfc3f5 | 1585 | } // End namespace gold. |