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14bfc3f5 ILT |
1 | // symtab.cc -- the gold symbol table |
2 | ||
3 | #include "gold.h" | |
4 | ||
5 | #include <cassert> | |
6 | #include <stdint.h> | |
7 | #include <string> | |
8 | #include <utility> | |
9 | ||
10 | #include "object.h" | |
75f65a3e | 11 | #include "output.h" |
61ba1cf9 | 12 | #include "target.h" |
14bfc3f5 ILT |
13 | #include "symtab.h" |
14 | ||
15 | namespace gold | |
16 | { | |
17 | ||
18 | // Class Symbol. | |
19 | ||
ead1e424 ILT |
20 | // Initialize fields in Symbol. This initializes everything except u_ |
21 | // and source_. | |
14bfc3f5 | 22 | |
14bfc3f5 | 23 | void |
ead1e424 ILT |
24 | Symbol::init_fields(const char* name, const char* version, |
25 | elfcpp::STT type, elfcpp::STB binding, | |
26 | elfcpp::STV visibility, unsigned char nonvis) | |
14bfc3f5 ILT |
27 | { |
28 | this->name_ = name; | |
29 | this->version_ = version; | |
ead1e424 ILT |
30 | this->got_offset_ = 0; |
31 | this->type_ = type; | |
32 | this->binding_ = binding; | |
33 | this->visibility_ = visibility; | |
34 | this->nonvis_ = nonvis; | |
35 | this->is_target_special_ = false; | |
1564db8d ILT |
36 | this->is_def_ = false; |
37 | this->is_forwarder_ = false; | |
ead1e424 ILT |
38 | this->in_dyn_ = false; |
39 | this->has_got_offset_ = false; | |
f6ce93d6 | 40 | this->has_warning_ = false; |
ead1e424 ILT |
41 | } |
42 | ||
43 | // Initialize the fields in the base class Symbol for SYM in OBJECT. | |
44 | ||
45 | template<int size, bool big_endian> | |
46 | void | |
47 | Symbol::init_base(const char* name, const char* version, Object* object, | |
48 | const elfcpp::Sym<size, big_endian>& sym) | |
49 | { | |
50 | this->init_fields(name, version, sym.get_st_type(), sym.get_st_bind(), | |
51 | sym.get_st_visibility(), sym.get_st_nonvis()); | |
52 | this->u_.from_object.object = object; | |
53 | // FIXME: Handle SHN_XINDEX. | |
54 | this->u_.from_object.shnum = sym.get_st_shndx(); | |
55 | this->source_ = FROM_OBJECT; | |
1564db8d | 56 | this->in_dyn_ = object->is_dynamic(); |
14bfc3f5 ILT |
57 | } |
58 | ||
ead1e424 ILT |
59 | // Initialize the fields in the base class Symbol for a symbol defined |
60 | // in an Output_data. | |
61 | ||
62 | void | |
63 | Symbol::init_base(const char* name, Output_data* od, elfcpp::STT type, | |
64 | elfcpp::STB binding, elfcpp::STV visibility, | |
65 | unsigned char nonvis, bool offset_is_from_end) | |
66 | { | |
67 | this->init_fields(name, NULL, type, binding, visibility, nonvis); | |
68 | this->u_.in_output_data.output_data = od; | |
69 | this->u_.in_output_data.offset_is_from_end = offset_is_from_end; | |
70 | this->source_ = IN_OUTPUT_DATA; | |
71 | } | |
72 | ||
73 | // Initialize the fields in the base class Symbol for a symbol defined | |
74 | // in an Output_segment. | |
75 | ||
76 | void | |
77 | Symbol::init_base(const char* name, Output_segment* os, elfcpp::STT type, | |
78 | elfcpp::STB binding, elfcpp::STV visibility, | |
79 | unsigned char nonvis, Segment_offset_base offset_base) | |
80 | { | |
81 | this->init_fields(name, NULL, type, binding, visibility, nonvis); | |
82 | this->u_.in_output_segment.output_segment = os; | |
83 | this->u_.in_output_segment.offset_base = offset_base; | |
84 | this->source_ = IN_OUTPUT_SEGMENT; | |
85 | } | |
86 | ||
87 | // Initialize the fields in the base class Symbol for a symbol defined | |
88 | // as a constant. | |
89 | ||
90 | void | |
91 | Symbol::init_base(const char* name, elfcpp::STT type, | |
92 | elfcpp::STB binding, elfcpp::STV visibility, | |
93 | unsigned char nonvis) | |
94 | { | |
95 | this->init_fields(name, NULL, type, binding, visibility, nonvis); | |
96 | this->source_ = CONSTANT; | |
97 | } | |
98 | ||
99 | // Initialize the fields in Sized_symbol for SYM in OBJECT. | |
14bfc3f5 ILT |
100 | |
101 | template<int size> | |
102 | template<bool big_endian> | |
103 | void | |
104 | Sized_symbol<size>::init(const char* name, const char* version, Object* object, | |
105 | const elfcpp::Sym<size, big_endian>& sym) | |
106 | { | |
107 | this->init_base(name, version, object, sym); | |
108 | this->value_ = sym.get_st_value(); | |
ead1e424 ILT |
109 | this->symsize_ = sym.get_st_size(); |
110 | } | |
111 | ||
112 | // Initialize the fields in Sized_symbol for a symbol defined in an | |
113 | // Output_data. | |
114 | ||
115 | template<int size> | |
116 | void | |
117 | Sized_symbol<size>::init(const char* name, Output_data* od, | |
118 | Value_type value, Size_type symsize, | |
119 | elfcpp::STT type, elfcpp::STB binding, | |
120 | elfcpp::STV visibility, unsigned char nonvis, | |
121 | bool offset_is_from_end) | |
122 | { | |
123 | this->init_base(name, od, type, binding, visibility, nonvis, | |
124 | offset_is_from_end); | |
125 | this->value_ = value; | |
126 | this->symsize_ = symsize; | |
127 | } | |
128 | ||
129 | // Initialize the fields in Sized_symbol for a symbol defined in an | |
130 | // Output_segment. | |
131 | ||
132 | template<int size> | |
133 | void | |
134 | Sized_symbol<size>::init(const char* name, Output_segment* os, | |
135 | Value_type value, Size_type symsize, | |
136 | elfcpp::STT type, elfcpp::STB binding, | |
137 | elfcpp::STV visibility, unsigned char nonvis, | |
138 | Segment_offset_base offset_base) | |
139 | { | |
140 | this->init_base(name, os, type, binding, visibility, nonvis, offset_base); | |
141 | this->value_ = value; | |
142 | this->symsize_ = symsize; | |
143 | } | |
144 | ||
145 | // Initialize the fields in Sized_symbol for a symbol defined as a | |
146 | // constant. | |
147 | ||
148 | template<int size> | |
149 | void | |
150 | Sized_symbol<size>::init(const char* name, Value_type value, Size_type symsize, | |
151 | elfcpp::STT type, elfcpp::STB binding, | |
152 | elfcpp::STV visibility, unsigned char nonvis) | |
153 | { | |
154 | this->init_base(name, type, binding, visibility, nonvis); | |
155 | this->value_ = value; | |
156 | this->symsize_ = symsize; | |
14bfc3f5 ILT |
157 | } |
158 | ||
159 | // Class Symbol_table. | |
160 | ||
161 | Symbol_table::Symbol_table() | |
ead1e424 | 162 | : size_(0), saw_undefined_(0), offset_(0), table_(), namepool_(), |
f6ce93d6 | 163 | forwarders_(), commons_(), warnings_() |
14bfc3f5 ILT |
164 | { |
165 | } | |
166 | ||
167 | Symbol_table::~Symbol_table() | |
168 | { | |
169 | } | |
170 | ||
171 | // The hash function. The key is always canonicalized, so we use a | |
172 | // simple combination of the pointers. | |
173 | ||
174 | size_t | |
175 | Symbol_table::Symbol_table_hash::operator()(const Symbol_table_key& key) const | |
176 | { | |
f0641a0b | 177 | return key.first ^ key.second; |
14bfc3f5 ILT |
178 | } |
179 | ||
180 | // The symbol table key equality function. This is only called with | |
181 | // canonicalized name and version strings, so we can use pointer | |
182 | // comparison. | |
183 | ||
184 | bool | |
185 | Symbol_table::Symbol_table_eq::operator()(const Symbol_table_key& k1, | |
186 | const Symbol_table_key& k2) const | |
187 | { | |
188 | return k1.first == k2.first && k1.second == k2.second; | |
189 | } | |
190 | ||
191 | // Make TO a symbol which forwards to FROM. | |
192 | ||
193 | void | |
194 | Symbol_table::make_forwarder(Symbol* from, Symbol* to) | |
195 | { | |
196 | assert(!from->is_forwarder() && !to->is_forwarder()); | |
197 | this->forwarders_[from] = to; | |
198 | from->set_forwarder(); | |
199 | } | |
200 | ||
61ba1cf9 ILT |
201 | // Resolve the forwards from FROM, returning the real symbol. |
202 | ||
14bfc3f5 ILT |
203 | Symbol* |
204 | Symbol_table::resolve_forwards(Symbol* from) const | |
205 | { | |
206 | assert(from->is_forwarder()); | |
207 | Unordered_map<Symbol*, Symbol*>::const_iterator p = | |
208 | this->forwarders_.find(from); | |
209 | assert(p != this->forwarders_.end()); | |
210 | return p->second; | |
211 | } | |
212 | ||
61ba1cf9 ILT |
213 | // Look up a symbol by name. |
214 | ||
215 | Symbol* | |
216 | Symbol_table::lookup(const char* name, const char* version) const | |
217 | { | |
f0641a0b ILT |
218 | Stringpool::Key name_key; |
219 | name = this->namepool_.find(name, &name_key); | |
61ba1cf9 ILT |
220 | if (name == NULL) |
221 | return NULL; | |
f0641a0b ILT |
222 | |
223 | Stringpool::Key version_key = 0; | |
61ba1cf9 ILT |
224 | if (version != NULL) |
225 | { | |
f0641a0b | 226 | version = this->namepool_.find(version, &version_key); |
61ba1cf9 ILT |
227 | if (version == NULL) |
228 | return NULL; | |
229 | } | |
230 | ||
f0641a0b | 231 | Symbol_table_key key(name_key, version_key); |
61ba1cf9 ILT |
232 | Symbol_table::Symbol_table_type::const_iterator p = this->table_.find(key); |
233 | if (p == this->table_.end()) | |
234 | return NULL; | |
235 | return p->second; | |
236 | } | |
237 | ||
14bfc3f5 ILT |
238 | // Resolve a Symbol with another Symbol. This is only used in the |
239 | // unusual case where there are references to both an unversioned | |
240 | // symbol and a symbol with a version, and we then discover that that | |
1564db8d ILT |
241 | // version is the default version. Because this is unusual, we do |
242 | // this the slow way, by converting back to an ELF symbol. | |
14bfc3f5 | 243 | |
1564db8d | 244 | template<int size, bool big_endian> |
14bfc3f5 | 245 | void |
5482377d ILT |
246 | Symbol_table::resolve(Sized_symbol<size>* to, const Sized_symbol<size>* from |
247 | ACCEPT_SIZE_ENDIAN) | |
14bfc3f5 | 248 | { |
1564db8d ILT |
249 | unsigned char buf[elfcpp::Elf_sizes<size>::sym_size]; |
250 | elfcpp::Sym_write<size, big_endian> esym(buf); | |
251 | // We don't bother to set the st_name field. | |
252 | esym.put_st_value(from->value()); | |
253 | esym.put_st_size(from->symsize()); | |
254 | esym.put_st_info(from->binding(), from->type()); | |
ead1e424 | 255 | esym.put_st_other(from->visibility(), from->nonvis()); |
1564db8d ILT |
256 | esym.put_st_shndx(from->shnum()); |
257 | Symbol_table::resolve(to, esym.sym(), from->object()); | |
14bfc3f5 ILT |
258 | } |
259 | ||
260 | // Add one symbol from OBJECT to the symbol table. NAME is symbol | |
261 | // name and VERSION is the version; both are canonicalized. DEF is | |
262 | // whether this is the default version. | |
263 | ||
264 | // If DEF is true, then this is the definition of a default version of | |
265 | // a symbol. That means that any lookup of NAME/NULL and any lookup | |
266 | // of NAME/VERSION should always return the same symbol. This is | |
267 | // obvious for references, but in particular we want to do this for | |
268 | // definitions: overriding NAME/NULL should also override | |
269 | // NAME/VERSION. If we don't do that, it would be very hard to | |
270 | // override functions in a shared library which uses versioning. | |
271 | ||
272 | // We implement this by simply making both entries in the hash table | |
273 | // point to the same Symbol structure. That is easy enough if this is | |
274 | // the first time we see NAME/NULL or NAME/VERSION, but it is possible | |
275 | // that we have seen both already, in which case they will both have | |
276 | // independent entries in the symbol table. We can't simply change | |
277 | // the symbol table entry, because we have pointers to the entries | |
278 | // attached to the object files. So we mark the entry attached to the | |
279 | // object file as a forwarder, and record it in the forwarders_ map. | |
280 | // Note that entries in the hash table will never be marked as | |
281 | // forwarders. | |
282 | ||
283 | template<int size, bool big_endian> | |
284 | Symbol* | |
f6ce93d6 | 285 | Symbol_table::add_from_object(Object* object, |
14bfc3f5 | 286 | const char *name, |
f0641a0b ILT |
287 | Stringpool::Key name_key, |
288 | const char *version, | |
289 | Stringpool::Key version_key, | |
290 | bool def, | |
14bfc3f5 ILT |
291 | const elfcpp::Sym<size, big_endian>& sym) |
292 | { | |
293 | Symbol* const snull = NULL; | |
294 | std::pair<typename Symbol_table_type::iterator, bool> ins = | |
f0641a0b ILT |
295 | this->table_.insert(std::make_pair(std::make_pair(name_key, version_key), |
296 | snull)); | |
14bfc3f5 ILT |
297 | |
298 | std::pair<typename Symbol_table_type::iterator, bool> insdef = | |
299 | std::make_pair(this->table_.end(), false); | |
300 | if (def) | |
301 | { | |
f0641a0b ILT |
302 | const Stringpool::Key vnull_key = 0; |
303 | insdef = this->table_.insert(std::make_pair(std::make_pair(name_key, | |
304 | vnull_key), | |
14bfc3f5 ILT |
305 | snull)); |
306 | } | |
307 | ||
308 | // ins.first: an iterator, which is a pointer to a pair. | |
309 | // ins.first->first: the key (a pair of name and version). | |
310 | // ins.first->second: the value (Symbol*). | |
311 | // ins.second: true if new entry was inserted, false if not. | |
312 | ||
1564db8d | 313 | Sized_symbol<size>* ret; |
ead1e424 ILT |
314 | bool was_undefined; |
315 | bool was_common; | |
14bfc3f5 ILT |
316 | if (!ins.second) |
317 | { | |
318 | // We already have an entry for NAME/VERSION. | |
593f47df ILT |
319 | ret = this->get_sized_symbol SELECT_SIZE_NAME(size) (ins.first->second |
320 | SELECT_SIZE(size)); | |
14bfc3f5 | 321 | assert(ret != NULL); |
ead1e424 ILT |
322 | |
323 | was_undefined = ret->is_undefined(); | |
324 | was_common = ret->is_common(); | |
325 | ||
14bfc3f5 ILT |
326 | Symbol_table::resolve(ret, sym, object); |
327 | ||
328 | if (def) | |
329 | { | |
330 | if (insdef.second) | |
331 | { | |
332 | // This is the first time we have seen NAME/NULL. Make | |
333 | // NAME/NULL point to NAME/VERSION. | |
334 | insdef.first->second = ret; | |
335 | } | |
336 | else | |
337 | { | |
338 | // This is the unfortunate case where we already have | |
339 | // entries for both NAME/VERSION and NAME/NULL. | |
274e99f9 | 340 | const Sized_symbol<size>* sym2; |
593f47df | 341 | sym2 = this->get_sized_symbol SELECT_SIZE_NAME(size) ( |
5482377d ILT |
342 | insdef.first->second |
343 | SELECT_SIZE(size)); | |
593f47df | 344 | Symbol_table::resolve SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( |
5482377d | 345 | ret, sym2 SELECT_SIZE_ENDIAN(size, big_endian)); |
14bfc3f5 ILT |
346 | this->make_forwarder(insdef.first->second, ret); |
347 | insdef.first->second = ret; | |
348 | } | |
349 | } | |
350 | } | |
351 | else | |
352 | { | |
353 | // This is the first time we have seen NAME/VERSION. | |
354 | assert(ins.first->second == NULL); | |
ead1e424 ILT |
355 | |
356 | was_undefined = false; | |
357 | was_common = false; | |
358 | ||
14bfc3f5 ILT |
359 | if (def && !insdef.second) |
360 | { | |
361 | // We already have an entry for NAME/NULL. Make | |
362 | // NAME/VERSION point to it. | |
593f47df ILT |
363 | ret = this->get_sized_symbol SELECT_SIZE_NAME(size) ( |
364 | insdef.first->second | |
365 | SELECT_SIZE(size)); | |
14bfc3f5 ILT |
366 | Symbol_table::resolve(ret, sym, object); |
367 | ins.first->second = ret; | |
368 | } | |
369 | else | |
370 | { | |
f6ce93d6 ILT |
371 | Sized_target<size, big_endian>* target = |
372 | object->sized_target SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( | |
373 | SELECT_SIZE_ENDIAN_ONLY(size, big_endian)); | |
1564db8d ILT |
374 | if (!target->has_make_symbol()) |
375 | ret = new Sized_symbol<size>(); | |
376 | else | |
14bfc3f5 | 377 | { |
1564db8d ILT |
378 | ret = target->make_symbol(); |
379 | if (ret == NULL) | |
14bfc3f5 ILT |
380 | { |
381 | // This means that we don't want a symbol table | |
382 | // entry after all. | |
383 | if (!def) | |
384 | this->table_.erase(ins.first); | |
385 | else | |
386 | { | |
387 | this->table_.erase(insdef.first); | |
388 | // Inserting insdef invalidated ins. | |
f0641a0b ILT |
389 | this->table_.erase(std::make_pair(name_key, |
390 | version_key)); | |
14bfc3f5 ILT |
391 | } |
392 | return NULL; | |
393 | } | |
394 | } | |
14bfc3f5 | 395 | |
1564db8d ILT |
396 | ret->init(name, version, object, sym); |
397 | ||
14bfc3f5 ILT |
398 | ins.first->second = ret; |
399 | if (def) | |
400 | { | |
401 | // This is the first time we have seen NAME/NULL. Point | |
402 | // it at the new entry for NAME/VERSION. | |
403 | assert(insdef.second); | |
404 | insdef.first->second = ret; | |
405 | } | |
406 | } | |
407 | } | |
408 | ||
ead1e424 ILT |
409 | // Record every time we see a new undefined symbol, to speed up |
410 | // archive groups. | |
411 | if (!was_undefined && ret->is_undefined()) | |
412 | ++this->saw_undefined_; | |
413 | ||
414 | // Keep track of common symbols, to speed up common symbol | |
415 | // allocation. | |
416 | if (!was_common && ret->is_common()) | |
417 | this->commons_.push_back(ret); | |
418 | ||
14bfc3f5 ILT |
419 | return ret; |
420 | } | |
421 | ||
f6ce93d6 | 422 | // Add all the symbols in a relocatable object to the hash table. |
14bfc3f5 ILT |
423 | |
424 | template<int size, bool big_endian> | |
425 | void | |
426 | Symbol_table::add_from_object( | |
f6ce93d6 ILT |
427 | Relobj* object, |
428 | const unsigned char* syms, | |
14bfc3f5 ILT |
429 | size_t count, |
430 | const char* sym_names, | |
431 | size_t sym_name_size, | |
432 | Symbol** sympointers) | |
433 | { | |
434 | // We take the size from the first object we see. | |
435 | if (this->get_size() == 0) | |
436 | this->set_size(size); | |
437 | ||
438 | if (size != this->get_size() || size != object->target()->get_size()) | |
439 | { | |
440 | fprintf(stderr, _("%s: %s: mixing 32-bit and 64-bit ELF objects\n"), | |
441 | program_name, object->name().c_str()); | |
442 | gold_exit(false); | |
443 | } | |
444 | ||
a783673b ILT |
445 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; |
446 | ||
f6ce93d6 | 447 | const unsigned char* p = syms; |
a783673b | 448 | for (size_t i = 0; i < count; ++i, p += sym_size) |
14bfc3f5 ILT |
449 | { |
450 | elfcpp::Sym<size, big_endian> sym(p); | |
a783673b | 451 | elfcpp::Sym<size, big_endian>* psym = &sym; |
14bfc3f5 | 452 | |
a783673b | 453 | unsigned int st_name = psym->get_st_name(); |
14bfc3f5 ILT |
454 | if (st_name >= sym_name_size) |
455 | { | |
54dc6425 ILT |
456 | fprintf(stderr, |
457 | _("%s: %s: bad global symbol name offset %u at %lu\n"), | |
14bfc3f5 ILT |
458 | program_name, object->name().c_str(), st_name, |
459 | static_cast<unsigned long>(i)); | |
460 | gold_exit(false); | |
461 | } | |
462 | ||
a783673b ILT |
463 | // A symbol defined in a section which we are not including must |
464 | // be treated as an undefined symbol. | |
465 | unsigned char symbuf[sym_size]; | |
466 | elfcpp::Sym<size, big_endian> sym2(symbuf); | |
467 | unsigned int st_shndx = psym->get_st_shndx(); | |
468 | if (st_shndx != elfcpp::SHN_UNDEF | |
469 | && st_shndx < elfcpp::SHN_LORESERVE | |
470 | && !object->is_section_included(st_shndx)) | |
471 | { | |
472 | memcpy(symbuf, p, sym_size); | |
473 | elfcpp::Sym_write<size, big_endian> sw(symbuf); | |
474 | sw.put_st_shndx(elfcpp::SHN_UNDEF); | |
475 | psym = &sym2; | |
476 | } | |
477 | ||
14bfc3f5 ILT |
478 | const char* name = sym_names + st_name; |
479 | ||
480 | // In an object file, an '@' in the name separates the symbol | |
481 | // name from the version name. If there are two '@' characters, | |
482 | // this is the default version. | |
483 | const char* ver = strchr(name, '@'); | |
484 | ||
485 | Symbol* res; | |
486 | if (ver == NULL) | |
487 | { | |
f0641a0b ILT |
488 | Stringpool::Key name_key; |
489 | name = this->namepool_.add(name, &name_key); | |
490 | res = this->add_from_object(object, name, name_key, NULL, 0, | |
491 | false, *psym); | |
14bfc3f5 ILT |
492 | } |
493 | else | |
494 | { | |
f0641a0b ILT |
495 | Stringpool::Key name_key; |
496 | name = this->namepool_.add(name, ver - name, &name_key); | |
497 | ||
14bfc3f5 ILT |
498 | bool def = false; |
499 | ++ver; | |
500 | if (*ver == '@') | |
501 | { | |
502 | def = true; | |
503 | ++ver; | |
504 | } | |
f0641a0b ILT |
505 | |
506 | Stringpool::Key ver_key; | |
507 | ver = this->namepool_.add(ver, &ver_key); | |
508 | ||
509 | res = this->add_from_object(object, name, name_key, ver, ver_key, | |
510 | def, *psym); | |
14bfc3f5 ILT |
511 | } |
512 | ||
513 | *sympointers++ = res; | |
14bfc3f5 ILT |
514 | } |
515 | } | |
516 | ||
ead1e424 ILT |
517 | // Create and return a specially defined symbol. If ONLY_IF_REF is |
518 | // true, then only create the symbol if there is a reference to it. | |
519 | ||
520 | template<int size, bool big_endian> | |
521 | Sized_symbol<size>* | |
522 | Symbol_table::define_special_symbol(Target* target, const char* name, | |
593f47df ILT |
523 | bool only_if_ref |
524 | ACCEPT_SIZE_ENDIAN) | |
ead1e424 ILT |
525 | { |
526 | assert(this->size_ == size); | |
527 | ||
528 | Symbol* oldsym; | |
529 | Sized_symbol<size>* sym; | |
530 | ||
531 | if (only_if_ref) | |
532 | { | |
533 | oldsym = this->lookup(name, NULL); | |
f6ce93d6 | 534 | if (oldsym == NULL || !oldsym->is_undefined()) |
ead1e424 ILT |
535 | return NULL; |
536 | sym = NULL; | |
537 | ||
538 | // Canonicalize NAME. | |
539 | name = oldsym->name(); | |
540 | } | |
541 | else | |
542 | { | |
543 | // Canonicalize NAME. | |
f0641a0b ILT |
544 | Stringpool::Key name_key; |
545 | name = this->namepool_.add(name, &name_key); | |
ead1e424 ILT |
546 | |
547 | Symbol* const snull = NULL; | |
f0641a0b | 548 | const Stringpool::Key ver_key = 0; |
ead1e424 | 549 | std::pair<typename Symbol_table_type::iterator, bool> ins = |
f0641a0b | 550 | this->table_.insert(std::make_pair(std::make_pair(name_key, ver_key), |
ead1e424 ILT |
551 | snull)); |
552 | ||
553 | if (!ins.second) | |
554 | { | |
555 | // We already have a symbol table entry for NAME. | |
556 | oldsym = ins.first->second; | |
557 | assert(oldsym != NULL); | |
558 | sym = NULL; | |
559 | } | |
560 | else | |
561 | { | |
562 | // We haven't seen this symbol before. | |
563 | assert(ins.first->second == NULL); | |
564 | ||
565 | if (!target->has_make_symbol()) | |
566 | sym = new Sized_symbol<size>(); | |
567 | else | |
568 | { | |
569 | assert(target->get_size() == size); | |
570 | assert(target->is_big_endian() ? big_endian : !big_endian); | |
571 | typedef Sized_target<size, big_endian> My_target; | |
572 | My_target* sized_target = static_cast<My_target*>(target); | |
573 | sym = sized_target->make_symbol(); | |
574 | if (sym == NULL) | |
575 | return NULL; | |
576 | } | |
577 | ||
578 | ins.first->second = sym; | |
579 | oldsym = NULL; | |
580 | } | |
581 | } | |
582 | ||
583 | if (oldsym != NULL) | |
584 | { | |
585 | assert(sym == NULL); | |
586 | ||
593f47df ILT |
587 | sym = this->get_sized_symbol SELECT_SIZE_NAME(size) (oldsym |
588 | SELECT_SIZE(size)); | |
ead1e424 ILT |
589 | assert(sym->source() == Symbol::FROM_OBJECT); |
590 | const int old_shnum = sym->shnum(); | |
591 | if (old_shnum != elfcpp::SHN_UNDEF | |
592 | && old_shnum != elfcpp::SHN_COMMON | |
593 | && !sym->object()->is_dynamic()) | |
594 | { | |
595 | fprintf(stderr, "%s: linker defined: multiple definition of %s\n", | |
596 | program_name, name); | |
597 | // FIXME: Report old location. Record that we have seen an | |
598 | // error. | |
599 | return NULL; | |
600 | } | |
601 | ||
602 | // Our new definition is going to override the old reference. | |
603 | } | |
604 | ||
605 | return sym; | |
606 | } | |
607 | ||
608 | // Define a symbol based on an Output_data. | |
609 | ||
610 | void | |
611 | Symbol_table::define_in_output_data(Target* target, const char* name, | |
612 | Output_data* od, | |
613 | uint64_t value, uint64_t symsize, | |
614 | elfcpp::STT type, elfcpp::STB binding, | |
615 | elfcpp::STV visibility, | |
616 | unsigned char nonvis, | |
617 | bool offset_is_from_end, | |
618 | bool only_if_ref) | |
619 | { | |
620 | assert(target->get_size() == this->size_); | |
621 | if (this->size_ == 32) | |
622 | this->do_define_in_output_data<32>(target, name, od, value, symsize, | |
623 | type, binding, visibility, nonvis, | |
624 | offset_is_from_end, only_if_ref); | |
625 | else if (this->size_ == 64) | |
626 | this->do_define_in_output_data<64>(target, name, od, value, symsize, | |
627 | type, binding, visibility, nonvis, | |
628 | offset_is_from_end, only_if_ref); | |
629 | else | |
630 | abort(); | |
631 | } | |
632 | ||
633 | // Define a symbol in an Output_data, sized version. | |
634 | ||
635 | template<int size> | |
636 | void | |
637 | Symbol_table::do_define_in_output_data( | |
638 | Target* target, | |
639 | const char* name, | |
640 | Output_data* od, | |
641 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
642 | typename elfcpp::Elf_types<size>::Elf_WXword symsize, | |
643 | elfcpp::STT type, | |
644 | elfcpp::STB binding, | |
645 | elfcpp::STV visibility, | |
646 | unsigned char nonvis, | |
647 | bool offset_is_from_end, | |
648 | bool only_if_ref) | |
649 | { | |
650 | Sized_symbol<size>* sym; | |
651 | ||
652 | if (target->is_big_endian()) | |
593f47df ILT |
653 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) ( |
654 | target, name, only_if_ref | |
655 | SELECT_SIZE_ENDIAN(size, true)); | |
ead1e424 | 656 | else |
593f47df ILT |
657 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) ( |
658 | target, name, only_if_ref | |
659 | SELECT_SIZE_ENDIAN(size, false)); | |
ead1e424 ILT |
660 | |
661 | if (sym == NULL) | |
662 | return; | |
663 | ||
664 | sym->init(name, od, value, symsize, type, binding, visibility, nonvis, | |
665 | offset_is_from_end); | |
666 | } | |
667 | ||
668 | // Define a symbol based on an Output_segment. | |
669 | ||
670 | void | |
671 | Symbol_table::define_in_output_segment(Target* target, const char* name, | |
672 | Output_segment* os, | |
673 | uint64_t value, uint64_t symsize, | |
674 | elfcpp::STT type, elfcpp::STB binding, | |
675 | elfcpp::STV visibility, | |
676 | unsigned char nonvis, | |
677 | Symbol::Segment_offset_base offset_base, | |
678 | bool only_if_ref) | |
679 | { | |
680 | assert(target->get_size() == this->size_); | |
681 | if (this->size_ == 32) | |
682 | this->do_define_in_output_segment<32>(target, name, os, value, symsize, | |
683 | type, binding, visibility, nonvis, | |
684 | offset_base, only_if_ref); | |
685 | else if (this->size_ == 64) | |
686 | this->do_define_in_output_segment<64>(target, name, os, value, symsize, | |
687 | type, binding, visibility, nonvis, | |
688 | offset_base, only_if_ref); | |
689 | else | |
690 | abort(); | |
691 | } | |
692 | ||
693 | // Define a symbol in an Output_segment, sized version. | |
694 | ||
695 | template<int size> | |
696 | void | |
697 | Symbol_table::do_define_in_output_segment( | |
698 | Target* target, | |
699 | const char* name, | |
700 | Output_segment* os, | |
701 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
702 | typename elfcpp::Elf_types<size>::Elf_WXword symsize, | |
703 | elfcpp::STT type, | |
704 | elfcpp::STB binding, | |
705 | elfcpp::STV visibility, | |
706 | unsigned char nonvis, | |
707 | Symbol::Segment_offset_base offset_base, | |
708 | bool only_if_ref) | |
709 | { | |
710 | Sized_symbol<size>* sym; | |
711 | ||
712 | if (target->is_big_endian()) | |
593f47df ILT |
713 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) ( |
714 | target, name, only_if_ref | |
715 | SELECT_SIZE_ENDIAN(size, true)); | |
ead1e424 | 716 | else |
593f47df ILT |
717 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) ( |
718 | target, name, only_if_ref | |
719 | SELECT_SIZE_ENDIAN(size, false)); | |
ead1e424 ILT |
720 | |
721 | if (sym == NULL) | |
722 | return; | |
723 | ||
724 | sym->init(name, os, value, symsize, type, binding, visibility, nonvis, | |
725 | offset_base); | |
726 | } | |
727 | ||
728 | // Define a special symbol with a constant value. It is a multiple | |
729 | // definition error if this symbol is already defined. | |
730 | ||
731 | void | |
732 | Symbol_table::define_as_constant(Target* target, const char* name, | |
733 | uint64_t value, uint64_t symsize, | |
734 | elfcpp::STT type, elfcpp::STB binding, | |
735 | elfcpp::STV visibility, unsigned char nonvis, | |
736 | bool only_if_ref) | |
737 | { | |
738 | assert(target->get_size() == this->size_); | |
739 | if (this->size_ == 32) | |
740 | this->do_define_as_constant<32>(target, name, value, symsize, | |
741 | type, binding, visibility, nonvis, | |
742 | only_if_ref); | |
743 | else if (this->size_ == 64) | |
744 | this->do_define_as_constant<64>(target, name, value, symsize, | |
745 | type, binding, visibility, nonvis, | |
746 | only_if_ref); | |
747 | else | |
748 | abort(); | |
749 | } | |
750 | ||
751 | // Define a symbol as a constant, sized version. | |
752 | ||
753 | template<int size> | |
754 | void | |
755 | Symbol_table::do_define_as_constant( | |
756 | Target* target, | |
757 | const char* name, | |
758 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
759 | typename elfcpp::Elf_types<size>::Elf_WXword symsize, | |
760 | elfcpp::STT type, | |
761 | elfcpp::STB binding, | |
762 | elfcpp::STV visibility, | |
763 | unsigned char nonvis, | |
764 | bool only_if_ref) | |
765 | { | |
766 | Sized_symbol<size>* sym; | |
767 | ||
768 | if (target->is_big_endian()) | |
593f47df ILT |
769 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) ( |
770 | target, name, only_if_ref | |
771 | SELECT_SIZE_ENDIAN(size, true)); | |
ead1e424 | 772 | else |
593f47df ILT |
773 | sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) ( |
774 | target, name, only_if_ref | |
775 | SELECT_SIZE_ENDIAN(size, false)); | |
ead1e424 ILT |
776 | |
777 | if (sym == NULL) | |
778 | return; | |
779 | ||
780 | sym->init(name, value, symsize, type, binding, visibility, nonvis); | |
781 | } | |
782 | ||
783 | // Define a set of symbols in output sections. | |
784 | ||
785 | void | |
786 | Symbol_table::define_symbols(const Layout* layout, Target* target, int count, | |
787 | const Define_symbol_in_section* p) | |
788 | { | |
789 | for (int i = 0; i < count; ++i, ++p) | |
790 | { | |
791 | Output_section* os = layout->find_output_section(p->output_section); | |
792 | if (os != NULL) | |
793 | this->define_in_output_data(target, p->name, os, p->value, p->size, | |
794 | p->type, p->binding, p->visibility, | |
795 | p->nonvis, p->offset_is_from_end, | |
796 | p->only_if_ref); | |
797 | else | |
798 | this->define_as_constant(target, p->name, 0, p->size, p->type, | |
799 | p->binding, p->visibility, p->nonvis, | |
800 | p->only_if_ref); | |
801 | } | |
802 | } | |
803 | ||
804 | // Define a set of symbols in output segments. | |
805 | ||
806 | void | |
807 | Symbol_table::define_symbols(const Layout* layout, Target* target, int count, | |
808 | const Define_symbol_in_segment* p) | |
809 | { | |
810 | for (int i = 0; i < count; ++i, ++p) | |
811 | { | |
812 | Output_segment* os = layout->find_output_segment(p->segment_type, | |
813 | p->segment_flags_set, | |
814 | p->segment_flags_clear); | |
815 | if (os != NULL) | |
816 | this->define_in_output_segment(target, p->name, os, p->value, p->size, | |
817 | p->type, p->binding, p->visibility, | |
818 | p->nonvis, p->offset_base, | |
819 | p->only_if_ref); | |
820 | else | |
821 | this->define_as_constant(target, p->name, 0, p->size, p->type, | |
822 | p->binding, p->visibility, p->nonvis, | |
823 | p->only_if_ref); | |
824 | } | |
825 | } | |
826 | ||
75f65a3e ILT |
827 | // Set the final values for all the symbols. Record the file offset |
828 | // OFF. Add their names to POOL. Return the new file offset. | |
54dc6425 | 829 | |
75f65a3e ILT |
830 | off_t |
831 | Symbol_table::finalize(off_t off, Stringpool* pool) | |
54dc6425 | 832 | { |
f6ce93d6 ILT |
833 | off_t ret; |
834 | ||
75f65a3e | 835 | if (this->size_ == 32) |
f6ce93d6 | 836 | ret = this->sized_finalize<32>(off, pool); |
61ba1cf9 | 837 | else if (this->size_ == 64) |
f6ce93d6 | 838 | ret = this->sized_finalize<64>(off, pool); |
61ba1cf9 ILT |
839 | else |
840 | abort(); | |
f6ce93d6 ILT |
841 | |
842 | // Now that we have the final symbol table, we can reliably note | |
843 | // which symbols should get warnings. | |
844 | this->warnings_.note_warnings(this); | |
845 | ||
846 | return ret; | |
75f65a3e ILT |
847 | } |
848 | ||
ead1e424 ILT |
849 | // Set the final value for all the symbols. This is called after |
850 | // Layout::finalize, so all the output sections have their final | |
851 | // address. | |
75f65a3e ILT |
852 | |
853 | template<int size> | |
854 | off_t | |
855 | Symbol_table::sized_finalize(off_t off, Stringpool* pool) | |
856 | { | |
ead1e424 | 857 | off = align_address(off, size >> 3); |
75f65a3e ILT |
858 | this->offset_ = off; |
859 | ||
860 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; | |
861 | Symbol_table_type::iterator p = this->table_.begin(); | |
61ba1cf9 | 862 | size_t count = 0; |
75f65a3e | 863 | while (p != this->table_.end()) |
54dc6425 | 864 | { |
75f65a3e | 865 | Sized_symbol<size>* sym = static_cast<Sized_symbol<size>*>(p->second); |
54dc6425 | 866 | |
75f65a3e ILT |
867 | // FIXME: Here we need to decide which symbols should go into |
868 | // the output file. | |
869 | ||
ead1e424 | 870 | typename Sized_symbol<size>::Value_type value; |
75f65a3e | 871 | |
ead1e424 | 872 | switch (sym->source()) |
75f65a3e | 873 | { |
ead1e424 ILT |
874 | case Symbol::FROM_OBJECT: |
875 | { | |
876 | unsigned int shnum = sym->shnum(); | |
877 | ||
878 | // FIXME: We need some target specific support here. | |
879 | if (shnum >= elfcpp::SHN_LORESERVE | |
880 | && shnum != elfcpp::SHN_ABS) | |
881 | { | |
882 | fprintf(stderr, _("%s: %s: unsupported symbol section 0x%x\n"), | |
883 | program_name, sym->name(), shnum); | |
884 | gold_exit(false); | |
885 | } | |
886 | ||
f6ce93d6 ILT |
887 | Object* symobj = sym->object(); |
888 | if (symobj->is_dynamic()) | |
889 | { | |
890 | value = 0; | |
891 | shnum = elfcpp::SHN_UNDEF; | |
892 | } | |
893 | else if (shnum == elfcpp::SHN_UNDEF) | |
ead1e424 ILT |
894 | value = 0; |
895 | else if (shnum == elfcpp::SHN_ABS) | |
896 | value = sym->value(); | |
897 | else | |
898 | { | |
f6ce93d6 | 899 | Relobj* relobj = static_cast<Relobj*>(symobj); |
ead1e424 | 900 | off_t secoff; |
f6ce93d6 | 901 | Output_section* os = relobj->output_section(shnum, &secoff); |
ead1e424 ILT |
902 | |
903 | if (os == NULL) | |
904 | { | |
905 | // We should be able to erase this symbol from the | |
906 | // symbol table, but at least with gcc 4.0.2 | |
907 | // std::unordered_map::erase doesn't appear to return | |
908 | // the new iterator. | |
909 | // p = this->table_.erase(p); | |
910 | ++p; | |
911 | continue; | |
912 | } | |
913 | ||
914 | value = sym->value() + os->address() + secoff; | |
915 | } | |
916 | } | |
917 | break; | |
918 | ||
919 | case Symbol::IN_OUTPUT_DATA: | |
920 | { | |
921 | Output_data* od = sym->output_data(); | |
922 | value = sym->value() + od->address(); | |
923 | if (sym->offset_is_from_end()) | |
924 | value += od->data_size(); | |
925 | } | |
926 | break; | |
927 | ||
928 | case Symbol::IN_OUTPUT_SEGMENT: | |
929 | { | |
930 | Output_segment* os = sym->output_segment(); | |
931 | value = sym->value() + os->vaddr(); | |
932 | switch (sym->offset_base()) | |
933 | { | |
934 | case Symbol::SEGMENT_START: | |
935 | break; | |
936 | case Symbol::SEGMENT_END: | |
937 | value += os->memsz(); | |
938 | break; | |
939 | case Symbol::SEGMENT_BSS: | |
940 | value += os->filesz(); | |
941 | break; | |
942 | default: | |
943 | abort(); | |
944 | } | |
945 | } | |
946 | break; | |
947 | ||
948 | case Symbol::CONSTANT: | |
949 | value = sym->value(); | |
950 | break; | |
951 | ||
952 | default: | |
953 | abort(); | |
54dc6425 | 954 | } |
ead1e424 ILT |
955 | |
956 | sym->set_value(value); | |
f0641a0b | 957 | pool->add(sym->name(), NULL); |
ead1e424 ILT |
958 | ++count; |
959 | off += sym_size; | |
960 | ++p; | |
54dc6425 | 961 | } |
75f65a3e | 962 | |
61ba1cf9 ILT |
963 | this->output_count_ = count; |
964 | ||
75f65a3e | 965 | return off; |
54dc6425 ILT |
966 | } |
967 | ||
61ba1cf9 ILT |
968 | // Write out the global symbols. |
969 | ||
970 | void | |
971 | Symbol_table::write_globals(const Target* target, const Stringpool* sympool, | |
972 | Output_file* of) const | |
973 | { | |
974 | if (this->size_ == 32) | |
975 | { | |
976 | if (target->is_big_endian()) | |
977 | this->sized_write_globals<32, true>(target, sympool, of); | |
978 | else | |
979 | this->sized_write_globals<32, false>(target, sympool, of); | |
980 | } | |
981 | else if (this->size_ == 64) | |
982 | { | |
983 | if (target->is_big_endian()) | |
984 | this->sized_write_globals<64, true>(target, sympool, of); | |
985 | else | |
986 | this->sized_write_globals<64, false>(target, sympool, of); | |
987 | } | |
988 | else | |
989 | abort(); | |
990 | } | |
991 | ||
992 | // Write out the global symbols. | |
993 | ||
994 | template<int size, bool big_endian> | |
995 | void | |
996 | Symbol_table::sized_write_globals(const Target*, | |
997 | const Stringpool* sympool, | |
998 | Output_file* of) const | |
999 | { | |
1000 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; | |
1001 | unsigned char* psyms = of->get_output_view(this->offset_, | |
1002 | this->output_count_ * sym_size); | |
1003 | unsigned char* ps = psyms; | |
1004 | for (Symbol_table_type::const_iterator p = this->table_.begin(); | |
1005 | p != this->table_.end(); | |
1006 | ++p) | |
1007 | { | |
1008 | Sized_symbol<size>* sym = static_cast<Sized_symbol<size>*>(p->second); | |
1009 | ||
ead1e424 ILT |
1010 | unsigned int shndx; |
1011 | switch (sym->source()) | |
1012 | { | |
1013 | case Symbol::FROM_OBJECT: | |
1014 | { | |
1015 | unsigned int shnum = sym->shnum(); | |
1016 | ||
1017 | // FIXME: We need some target specific support here. | |
1018 | if (shnum >= elfcpp::SHN_LORESERVE | |
1019 | && shnum != elfcpp::SHN_ABS) | |
1020 | { | |
1021 | fprintf(stderr, _("%s: %s: unsupported symbol section 0x%x\n"), | |
1022 | program_name, sym->name(), sym->shnum()); | |
1023 | gold_exit(false); | |
1024 | } | |
1025 | ||
f6ce93d6 ILT |
1026 | Object* symobj = sym->object(); |
1027 | if (symobj->is_dynamic()) | |
1028 | { | |
1029 | // FIXME. | |
1030 | shndx = elfcpp::SHN_UNDEF; | |
1031 | } | |
1032 | else if (shnum == elfcpp::SHN_UNDEF || shnum == elfcpp::SHN_ABS) | |
ead1e424 ILT |
1033 | shndx = shnum; |
1034 | else | |
1035 | { | |
f6ce93d6 | 1036 | Relobj* relobj = static_cast<Relobj*>(symobj); |
ead1e424 | 1037 | off_t secoff; |
f6ce93d6 | 1038 | Output_section* os = relobj->output_section(shnum, &secoff); |
ead1e424 ILT |
1039 | if (os == NULL) |
1040 | continue; | |
1041 | ||
1042 | shndx = os->out_shndx(); | |
1043 | } | |
1044 | } | |
1045 | break; | |
1046 | ||
1047 | case Symbol::IN_OUTPUT_DATA: | |
1048 | shndx = sym->output_data()->out_shndx(); | |
1049 | break; | |
1050 | ||
1051 | case Symbol::IN_OUTPUT_SEGMENT: | |
1052 | shndx = elfcpp::SHN_ABS; | |
1053 | break; | |
1054 | ||
1055 | case Symbol::CONSTANT: | |
1056 | shndx = elfcpp::SHN_ABS; | |
1057 | break; | |
1058 | ||
1059 | default: | |
1060 | abort(); | |
1061 | } | |
61ba1cf9 ILT |
1062 | |
1063 | elfcpp::Sym_write<size, big_endian> osym(ps); | |
1064 | osym.put_st_name(sympool->get_offset(sym->name())); | |
1065 | osym.put_st_value(sym->value()); | |
1066 | osym.put_st_size(sym->symsize()); | |
1067 | osym.put_st_info(elfcpp::elf_st_info(sym->binding(), sym->type())); | |
ead1e424 ILT |
1068 | osym.put_st_other(elfcpp::elf_st_other(sym->visibility(), |
1069 | sym->nonvis())); | |
1070 | osym.put_st_shndx(shndx); | |
61ba1cf9 ILT |
1071 | |
1072 | ps += sym_size; | |
1073 | } | |
1074 | ||
1075 | of->write_output_view(this->offset_, this->output_count_ * sym_size, psyms); | |
1076 | } | |
1077 | ||
f6ce93d6 ILT |
1078 | // Warnings functions. |
1079 | ||
1080 | // Add a new warning. | |
1081 | ||
1082 | void | |
1083 | Warnings::add_warning(Symbol_table* symtab, const char* name, Object* obj, | |
1084 | unsigned int shndx) | |
1085 | { | |
1086 | name = symtab->canonicalize_name(name); | |
1087 | this->warnings_[name].set(obj, shndx); | |
1088 | } | |
1089 | ||
1090 | // Look through the warnings and mark the symbols for which we should | |
1091 | // warn. This is called during Layout::finalize when we know the | |
1092 | // sources for all the symbols. | |
1093 | ||
1094 | void | |
1095 | Warnings::note_warnings(Symbol_table* symtab) | |
1096 | { | |
1097 | for (Warning_table::iterator p = this->warnings_.begin(); | |
1098 | p != this->warnings_.end(); | |
1099 | ++p) | |
1100 | { | |
1101 | Symbol* sym = symtab->lookup(p->first, NULL); | |
1102 | if (sym != NULL | |
1103 | && sym->source() == Symbol::FROM_OBJECT | |
1104 | && sym->object() == p->second.object) | |
1105 | { | |
1106 | sym->set_has_warning(); | |
1107 | ||
1108 | // Read the section contents to get the warning text. It | |
1109 | // would be nicer if we only did this if we have to actually | |
1110 | // issue a warning. Unfortunately, warnings are issued as | |
1111 | // we relocate sections. That means that we can not lock | |
1112 | // the object then, as we might try to issue the same | |
1113 | // warning multiple times simultaneously. | |
1114 | const unsigned char* c; | |
1115 | off_t len; | |
1116 | c = p->second.object->section_contents(p->second.shndx, &len); | |
1117 | p->second.set_text(reinterpret_cast<const char*>(c), len); | |
1118 | } | |
1119 | } | |
1120 | } | |
1121 | ||
1122 | // Issue a warning. This is called when we see a relocation against a | |
1123 | // symbol for which has a warning. | |
1124 | ||
1125 | void | |
1126 | Warnings::issue_warning(Symbol* sym, const std::string& location) const | |
1127 | { | |
1128 | assert(sym->has_warning()); | |
1129 | Warning_table::const_iterator p = this->warnings_.find(sym->name()); | |
1130 | assert(p != this->warnings_.end()); | |
1131 | fprintf(stderr, _("%s: %s: warning: %s\n"), program_name, location.c_str(), | |
1132 | p->second.text.c_str()); | |
1133 | } | |
1134 | ||
14bfc3f5 ILT |
1135 | // Instantiate the templates we need. We could use the configure |
1136 | // script to restrict this to only the ones needed for implemented | |
1137 | // targets. | |
1138 | ||
1139 | template | |
1140 | void | |
1141 | Symbol_table::add_from_object<32, true>( | |
f6ce93d6 ILT |
1142 | Relobj* object, |
1143 | const unsigned char* syms, | |
14bfc3f5 ILT |
1144 | size_t count, |
1145 | const char* sym_names, | |
1146 | size_t sym_name_size, | |
1147 | Symbol** sympointers); | |
1148 | ||
1149 | template | |
1150 | void | |
1151 | Symbol_table::add_from_object<32, false>( | |
f6ce93d6 ILT |
1152 | Relobj* object, |
1153 | const unsigned char* syms, | |
14bfc3f5 ILT |
1154 | size_t count, |
1155 | const char* sym_names, | |
1156 | size_t sym_name_size, | |
1157 | Symbol** sympointers); | |
1158 | ||
1159 | template | |
1160 | void | |
1161 | Symbol_table::add_from_object<64, true>( | |
f6ce93d6 ILT |
1162 | Relobj* object, |
1163 | const unsigned char* syms, | |
14bfc3f5 ILT |
1164 | size_t count, |
1165 | const char* sym_names, | |
1166 | size_t sym_name_size, | |
1167 | Symbol** sympointers); | |
1168 | ||
1169 | template | |
1170 | void | |
1171 | Symbol_table::add_from_object<64, false>( | |
f6ce93d6 ILT |
1172 | Relobj* object, |
1173 | const unsigned char* syms, | |
14bfc3f5 ILT |
1174 | size_t count, |
1175 | const char* sym_names, | |
1176 | size_t sym_name_size, | |
1177 | Symbol** sympointers); | |
1178 | ||
1179 | } // End namespace gold. |