1 // symtab.cc -- the gold symbol table
3 // Copyright 2006, 2007 Free Software Foundation, Inc.
4 // Written by Ian Lance Taylor <iant@google.com>.
6 // This file is part of gold.
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 3 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 // MA 02110-1301, USA.
33 #include "workqueue.h"
41 // Initialize fields in Symbol. This initializes everything except u_
45 Symbol::init_fields(const char* name, const char* version,
46 elfcpp::STT type, elfcpp::STB binding,
47 elfcpp::STV visibility, unsigned char nonvis)
50 this->version_ = version;
51 this->symtab_index_ = 0;
52 this->dynsym_index_ = 0;
53 this->got_offset_ = 0;
54 this->plt_offset_ = 0;
56 this->binding_ = binding;
57 this->visibility_ = visibility;
58 this->nonvis_ = nonvis;
59 this->is_target_special_ = false;
60 this->is_def_ = false;
61 this->is_forwarder_ = false;
62 this->has_alias_ = false;
63 this->needs_dynsym_entry_ = false;
64 this->in_reg_ = false;
65 this->in_dyn_ = false;
66 this->has_got_offset_ = false;
67 this->has_plt_offset_ = false;
68 this->has_warning_ = false;
71 // Initialize the fields in the base class Symbol for SYM in OBJECT.
73 template<int size, bool big_endian>
75 Symbol::init_base(const char* name, const char* version, Object* object,
76 const elfcpp::Sym<size, big_endian>& sym)
78 this->init_fields(name, version, sym.get_st_type(), sym.get_st_bind(),
79 sym.get_st_visibility(), sym.get_st_nonvis());
80 this->u_.from_object.object = object;
81 // FIXME: Handle SHN_XINDEX.
82 this->u_.from_object.shndx = sym.get_st_shndx();
83 this->source_ = FROM_OBJECT;
84 this->in_reg_ = !object->is_dynamic();
85 this->in_dyn_ = object->is_dynamic();
88 // Initialize the fields in the base class Symbol for a symbol defined
92 Symbol::init_base(const char* name, Output_data* od, elfcpp::STT type,
93 elfcpp::STB binding, elfcpp::STV visibility,
94 unsigned char nonvis, bool offset_is_from_end)
96 this->init_fields(name, NULL, type, binding, visibility, nonvis);
97 this->u_.in_output_data.output_data = od;
98 this->u_.in_output_data.offset_is_from_end = offset_is_from_end;
99 this->source_ = IN_OUTPUT_DATA;
100 this->in_reg_ = true;
103 // Initialize the fields in the base class Symbol for a symbol defined
104 // in an Output_segment.
107 Symbol::init_base(const char* name, Output_segment* os, elfcpp::STT type,
108 elfcpp::STB binding, elfcpp::STV visibility,
109 unsigned char nonvis, Segment_offset_base offset_base)
111 this->init_fields(name, NULL, type, binding, visibility, nonvis);
112 this->u_.in_output_segment.output_segment = os;
113 this->u_.in_output_segment.offset_base = offset_base;
114 this->source_ = IN_OUTPUT_SEGMENT;
115 this->in_reg_ = true;
118 // Initialize the fields in the base class Symbol for a symbol defined
122 Symbol::init_base(const char* name, elfcpp::STT type,
123 elfcpp::STB binding, elfcpp::STV visibility,
124 unsigned char nonvis)
126 this->init_fields(name, NULL, type, binding, visibility, nonvis);
127 this->source_ = CONSTANT;
128 this->in_reg_ = true;
131 // Initialize the fields in Sized_symbol for SYM in OBJECT.
134 template<bool big_endian>
136 Sized_symbol<size>::init(const char* name, const char* version, Object* object,
137 const elfcpp::Sym<size, big_endian>& sym)
139 this->init_base(name, version, object, sym);
140 this->value_ = sym.get_st_value();
141 this->symsize_ = sym.get_st_size();
144 // Initialize the fields in Sized_symbol for a symbol defined in an
149 Sized_symbol<size>::init(const char* name, Output_data* od,
150 Value_type value, Size_type symsize,
151 elfcpp::STT type, elfcpp::STB binding,
152 elfcpp::STV visibility, unsigned char nonvis,
153 bool offset_is_from_end)
155 this->init_base(name, od, type, binding, visibility, nonvis,
157 this->value_ = value;
158 this->symsize_ = symsize;
161 // Initialize the fields in Sized_symbol for a symbol defined in an
166 Sized_symbol<size>::init(const char* name, Output_segment* os,
167 Value_type value, Size_type symsize,
168 elfcpp::STT type, elfcpp::STB binding,
169 elfcpp::STV visibility, unsigned char nonvis,
170 Segment_offset_base offset_base)
172 this->init_base(name, os, type, binding, visibility, nonvis, offset_base);
173 this->value_ = value;
174 this->symsize_ = symsize;
177 // Initialize the fields in Sized_symbol for a symbol defined as a
182 Sized_symbol<size>::init(const char* name, Value_type value, Size_type symsize,
183 elfcpp::STT type, elfcpp::STB binding,
184 elfcpp::STV visibility, unsigned char nonvis)
186 this->init_base(name, type, binding, visibility, nonvis);
187 this->value_ = value;
188 this->symsize_ = symsize;
191 // Return true if this symbol should be added to the dynamic symbol
195 Symbol::should_add_dynsym_entry() const
197 // If the symbol is used by a dynamic relocation, we need to add it.
198 if (this->needs_dynsym_entry())
201 // If exporting all symbols or building a shared library,
202 // and the symbol is defined in a regular object and is
203 // externally visible, we need to add it.
204 if ((parameters->export_dynamic() || parameters->output_is_shared())
205 && !this->is_from_dynobj()
206 && this->is_externally_visible())
212 // Return true if the final value of this symbol is known at link
216 Symbol::final_value_is_known() const
218 // If we are not generating an executable, then no final values are
219 // known, since they will change at runtime.
220 if (!parameters->output_is_executable())
223 // If the symbol is not from an object file, then it is defined, and
225 if (this->source_ != FROM_OBJECT)
228 // If the symbol is from a dynamic object, then the final value is
230 if (this->object()->is_dynamic())
233 // If the symbol is not undefined (it is defined or common), then
234 // the final value is known.
235 if (!this->is_undefined())
238 // If the symbol is undefined, then whether the final value is known
239 // depends on whether we are doing a static link. If we are doing a
240 // dynamic link, then the final value could be filled in at runtime.
241 // This could reasonably be the case for a weak undefined symbol.
242 return parameters->doing_static_link();
245 // Class Symbol_table.
247 Symbol_table::Symbol_table()
248 : saw_undefined_(0), offset_(0), table_(), namepool_(),
249 forwarders_(), commons_(), warnings_()
253 Symbol_table::~Symbol_table()
257 // The hash function. The key is always canonicalized, so we use a
258 // simple combination of the pointers.
261 Symbol_table::Symbol_table_hash::operator()(const Symbol_table_key& key) const
263 return key.first ^ key.second;
266 // The symbol table key equality function. This is only called with
267 // canonicalized name and version strings, so we can use pointer
271 Symbol_table::Symbol_table_eq::operator()(const Symbol_table_key& k1,
272 const Symbol_table_key& k2) const
274 return k1.first == k2.first && k1.second == k2.second;
277 // Make TO a symbol which forwards to FROM.
280 Symbol_table::make_forwarder(Symbol* from, Symbol* to)
282 gold_assert(from != to);
283 gold_assert(!from->is_forwarder() && !to->is_forwarder());
284 this->forwarders_[from] = to;
285 from->set_forwarder();
288 // Resolve the forwards from FROM, returning the real symbol.
291 Symbol_table::resolve_forwards(const Symbol* from) const
293 gold_assert(from->is_forwarder());
294 Unordered_map<const Symbol*, Symbol*>::const_iterator p =
295 this->forwarders_.find(from);
296 gold_assert(p != this->forwarders_.end());
300 // Look up a symbol by name.
303 Symbol_table::lookup(const char* name, const char* version) const
305 Stringpool::Key name_key;
306 name = this->namepool_.find(name, &name_key);
310 Stringpool::Key version_key = 0;
313 version = this->namepool_.find(version, &version_key);
318 Symbol_table_key key(name_key, version_key);
319 Symbol_table::Symbol_table_type::const_iterator p = this->table_.find(key);
320 if (p == this->table_.end())
325 // Resolve a Symbol with another Symbol. This is only used in the
326 // unusual case where there are references to both an unversioned
327 // symbol and a symbol with a version, and we then discover that that
328 // version is the default version. Because this is unusual, we do
329 // this the slow way, by converting back to an ELF symbol.
331 template<int size, bool big_endian>
333 Symbol_table::resolve(Sized_symbol<size>* to, const Sized_symbol<size>* from,
334 const char* version ACCEPT_SIZE_ENDIAN)
336 unsigned char buf[elfcpp::Elf_sizes<size>::sym_size];
337 elfcpp::Sym_write<size, big_endian> esym(buf);
338 // We don't bother to set the st_name field.
339 esym.put_st_value(from->value());
340 esym.put_st_size(from->symsize());
341 esym.put_st_info(from->binding(), from->type());
342 esym.put_st_other(from->visibility(), from->nonvis());
343 esym.put_st_shndx(from->shndx());
344 this->resolve(to, esym.sym(), from->object(), version);
351 // Add one symbol from OBJECT to the symbol table. NAME is symbol
352 // name and VERSION is the version; both are canonicalized. DEF is
353 // whether this is the default version.
355 // If DEF is true, then this is the definition of a default version of
356 // a symbol. That means that any lookup of NAME/NULL and any lookup
357 // of NAME/VERSION should always return the same symbol. This is
358 // obvious for references, but in particular we want to do this for
359 // definitions: overriding NAME/NULL should also override
360 // NAME/VERSION. If we don't do that, it would be very hard to
361 // override functions in a shared library which uses versioning.
363 // We implement this by simply making both entries in the hash table
364 // point to the same Symbol structure. That is easy enough if this is
365 // the first time we see NAME/NULL or NAME/VERSION, but it is possible
366 // that we have seen both already, in which case they will both have
367 // independent entries in the symbol table. We can't simply change
368 // the symbol table entry, because we have pointers to the entries
369 // attached to the object files. So we mark the entry attached to the
370 // object file as a forwarder, and record it in the forwarders_ map.
371 // Note that entries in the hash table will never be marked as
374 template<int size, bool big_endian>
376 Symbol_table::add_from_object(Object* object,
378 Stringpool::Key name_key,
380 Stringpool::Key version_key,
382 const elfcpp::Sym<size, big_endian>& sym)
384 Symbol* const snull = NULL;
385 std::pair<typename Symbol_table_type::iterator, bool> ins =
386 this->table_.insert(std::make_pair(std::make_pair(name_key, version_key),
389 std::pair<typename Symbol_table_type::iterator, bool> insdef =
390 std::make_pair(this->table_.end(), false);
393 const Stringpool::Key vnull_key = 0;
394 insdef = this->table_.insert(std::make_pair(std::make_pair(name_key,
399 // ins.first: an iterator, which is a pointer to a pair.
400 // ins.first->first: the key (a pair of name and version).
401 // ins.first->second: the value (Symbol*).
402 // ins.second: true if new entry was inserted, false if not.
404 Sized_symbol<size>* ret;
409 // We already have an entry for NAME/VERSION.
410 ret = this->get_sized_symbol SELECT_SIZE_NAME(size) (ins.first->second
412 gold_assert(ret != NULL);
414 was_undefined = ret->is_undefined();
415 was_common = ret->is_common();
417 this->resolve(ret, sym, object, version);
423 // This is the first time we have seen NAME/NULL. Make
424 // NAME/NULL point to NAME/VERSION.
425 insdef.first->second = ret;
427 else if (insdef.first->second != ret)
429 // This is the unfortunate case where we already have
430 // entries for both NAME/VERSION and NAME/NULL.
431 const Sized_symbol<size>* sym2;
432 sym2 = this->get_sized_symbol SELECT_SIZE_NAME(size) (
435 Symbol_table::resolve SELECT_SIZE_ENDIAN_NAME(size, big_endian) (
436 ret, sym2, version SELECT_SIZE_ENDIAN(size, big_endian));
437 this->make_forwarder(insdef.first->second, ret);
438 insdef.first->second = ret;
444 // This is the first time we have seen NAME/VERSION.
445 gold_assert(ins.first->second == NULL);
447 was_undefined = false;
450 if (def && !insdef.second)
452 // We already have an entry for NAME/NULL. If we override
453 // it, then change it to NAME/VERSION.
454 ret = this->get_sized_symbol SELECT_SIZE_NAME(size) (
457 this->resolve(ret, sym, object, version);
458 ins.first->second = ret;
462 Sized_target<size, big_endian>* target =
463 object->sized_target SELECT_SIZE_ENDIAN_NAME(size, big_endian) (
464 SELECT_SIZE_ENDIAN_ONLY(size, big_endian));
465 if (!target->has_make_symbol())
466 ret = new Sized_symbol<size>();
469 ret = target->make_symbol();
472 // This means that we don't want a symbol table
475 this->table_.erase(ins.first);
478 this->table_.erase(insdef.first);
479 // Inserting insdef invalidated ins.
480 this->table_.erase(std::make_pair(name_key,
487 ret->init(name, version, object, sym);
489 ins.first->second = ret;
492 // This is the first time we have seen NAME/NULL. Point
493 // it at the new entry for NAME/VERSION.
494 gold_assert(insdef.second);
495 insdef.first->second = ret;
500 // Record every time we see a new undefined symbol, to speed up
502 if (!was_undefined && ret->is_undefined())
503 ++this->saw_undefined_;
505 // Keep track of common symbols, to speed up common symbol
507 if (!was_common && ret->is_common())
508 this->commons_.push_back(ret);
513 // Add all the symbols in a relocatable object to the hash table.
515 template<int size, bool big_endian>
517 Symbol_table::add_from_relobj(
518 Sized_relobj<size, big_endian>* relobj,
519 const unsigned char* syms,
521 const char* sym_names,
522 size_t sym_name_size,
523 Symbol** sympointers)
525 gold_assert(size == relobj->target()->get_size());
526 gold_assert(size == parameters->get_size());
528 const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
530 const unsigned char* p = syms;
531 for (size_t i = 0; i < count; ++i, p += sym_size)
533 elfcpp::Sym<size, big_endian> sym(p);
534 elfcpp::Sym<size, big_endian>* psym = &sym;
536 unsigned int st_name = psym->get_st_name();
537 if (st_name >= sym_name_size)
539 relobj->error(_("bad global symbol name offset %u at %zu"),
544 const char* name = sym_names + st_name;
546 // A symbol defined in a section which we are not including must
547 // be treated as an undefined symbol.
548 unsigned char symbuf[sym_size];
549 elfcpp::Sym<size, big_endian> sym2(symbuf);
550 unsigned int st_shndx = psym->get_st_shndx();
551 if (st_shndx != elfcpp::SHN_UNDEF
552 && st_shndx < elfcpp::SHN_LORESERVE
553 && !relobj->is_section_included(st_shndx))
555 memcpy(symbuf, p, sym_size);
556 elfcpp::Sym_write<size, big_endian> sw(symbuf);
557 sw.put_st_shndx(elfcpp::SHN_UNDEF);
561 // In an object file, an '@' in the name separates the symbol
562 // name from the version name. If there are two '@' characters,
563 // this is the default version.
564 const char* ver = strchr(name, '@');
566 Sized_symbol<size>* res;
569 Stringpool::Key name_key;
570 name = this->namepool_.add(name, true, &name_key);
571 res = this->add_from_object(relobj, name, name_key, NULL, 0,
576 Stringpool::Key name_key;
577 name = this->namepool_.add_prefix(name, ver - name, &name_key);
587 Stringpool::Key ver_key;
588 ver = this->namepool_.add(ver, true, &ver_key);
590 res = this->add_from_object(relobj, name, name_key, ver, ver_key,
594 *sympointers++ = res;
598 // Add all the symbols in a dynamic object to the hash table.
600 template<int size, bool big_endian>
602 Symbol_table::add_from_dynobj(
603 Sized_dynobj<size, big_endian>* dynobj,
604 const unsigned char* syms,
606 const char* sym_names,
607 size_t sym_name_size,
608 const unsigned char* versym,
610 const std::vector<const char*>* version_map)
612 gold_assert(size == dynobj->target()->get_size());
613 gold_assert(size == parameters->get_size());
615 if (versym != NULL && versym_size / 2 < count)
617 dynobj->error(_("too few symbol versions"));
621 const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
623 // We keep a list of all STT_OBJECT symbols, so that we can resolve
624 // weak aliases. This is necessary because if the dynamic object
625 // provides the same variable under two names, one of which is a
626 // weak definition, and the regular object refers to the weak
627 // definition, we have to put both the weak definition and the
628 // strong definition into the dynamic symbol table. Given a weak
629 // definition, the only way that we can find the corresponding
630 // strong definition, if any, is to search the symbol table.
631 std::vector<Sized_symbol<size>*> object_symbols;
633 const unsigned char* p = syms;
634 const unsigned char* vs = versym;
635 for (size_t i = 0; i < count; ++i, p += sym_size, vs += 2)
637 elfcpp::Sym<size, big_endian> sym(p);
639 // Ignore symbols with local binding.
640 if (sym.get_st_bind() == elfcpp::STB_LOCAL)
643 unsigned int st_name = sym.get_st_name();
644 if (st_name >= sym_name_size)
646 dynobj->error(_("bad symbol name offset %u at %zu"),
651 const char* name = sym_names + st_name;
653 Sized_symbol<size>* res;
657 Stringpool::Key name_key;
658 name = this->namepool_.add(name, true, &name_key);
659 res = this->add_from_object(dynobj, name, name_key, NULL, 0,
664 // Read the version information.
666 unsigned int v = elfcpp::Swap<16, big_endian>::readval(vs);
668 bool hidden = (v & elfcpp::VERSYM_HIDDEN) != 0;
669 v &= elfcpp::VERSYM_VERSION;
671 // The Sun documentation says that V can be VER_NDX_LOCAL,
672 // or VER_NDX_GLOBAL, or a version index. The meaning of
673 // VER_NDX_LOCAL is defined as "Symbol has local scope."
674 // The old GNU linker will happily generate VER_NDX_LOCAL
675 // for an undefined symbol. I don't know what the Sun
676 // linker will generate.
678 if (v == static_cast<unsigned int>(elfcpp::VER_NDX_LOCAL)
679 && sym.get_st_shndx() != elfcpp::SHN_UNDEF)
681 // This symbol should not be visible outside the object.
685 // At this point we are definitely going to add this symbol.
686 Stringpool::Key name_key;
687 name = this->namepool_.add(name, true, &name_key);
689 if (v == static_cast<unsigned int>(elfcpp::VER_NDX_LOCAL)
690 || v == static_cast<unsigned int>(elfcpp::VER_NDX_GLOBAL))
692 // This symbol does not have a version.
693 res = this->add_from_object(dynobj, name, name_key, NULL, 0,
698 if (v >= version_map->size())
700 dynobj->error(_("versym for symbol %zu out of range: %u"),
705 const char* version = (*version_map)[v];
708 dynobj->error(_("versym for symbol %zu has no name: %u"),
713 Stringpool::Key version_key;
714 version = this->namepool_.add(version, true, &version_key);
716 // If this is an absolute symbol, and the version name
717 // and symbol name are the same, then this is the
718 // version definition symbol. These symbols exist to
719 // support using -u to pull in particular versions. We
720 // do not want to record a version for them.
721 if (sym.get_st_shndx() == elfcpp::SHN_ABS
722 && name_key == version_key)
723 res = this->add_from_object(dynobj, name, name_key, NULL, 0,
727 const bool def = (!hidden
728 && (sym.get_st_shndx()
729 != elfcpp::SHN_UNDEF));
730 res = this->add_from_object(dynobj, name, name_key, version,
731 version_key, def, sym);
736 if (sym.get_st_shndx() != elfcpp::SHN_UNDEF
737 && sym.get_st_type() == elfcpp::STT_OBJECT)
738 object_symbols.push_back(res);
741 this->record_weak_aliases(&object_symbols);
744 // This is used to sort weak aliases. We sort them first by section
745 // index, then by offset, then by weak ahead of strong.
748 class Weak_alias_sorter
751 bool operator()(const Sized_symbol<size>*, const Sized_symbol<size>*) const;
756 Weak_alias_sorter<size>::operator()(const Sized_symbol<size>* s1,
757 const Sized_symbol<size>* s2) const
759 if (s1->shndx() != s2->shndx())
760 return s1->shndx() < s2->shndx();
761 if (s1->value() != s2->value())
762 return s1->value() < s2->value();
763 if (s1->binding() != s2->binding())
765 if (s1->binding() == elfcpp::STB_WEAK)
767 if (s2->binding() == elfcpp::STB_WEAK)
770 return std::string(s1->name()) < std::string(s2->name());
773 // SYMBOLS is a list of object symbols from a dynamic object. Look
774 // for any weak aliases, and record them so that if we add the weak
775 // alias to the dynamic symbol table, we also add the corresponding
780 Symbol_table::record_weak_aliases(std::vector<Sized_symbol<size>*>* symbols)
782 // Sort the vector by section index, then by offset, then by weak
784 std::sort(symbols->begin(), symbols->end(), Weak_alias_sorter<size>());
786 // Walk through the vector. For each weak definition, record
788 for (typename std::vector<Sized_symbol<size>*>::const_iterator p =
793 if ((*p)->binding() != elfcpp::STB_WEAK)
796 // Build a circular list of weak aliases. Each symbol points to
797 // the next one in the circular list.
799 Sized_symbol<size>* from_sym = *p;
800 typename std::vector<Sized_symbol<size>*>::const_iterator q;
801 for (q = p + 1; q != symbols->end(); ++q)
803 if ((*q)->shndx() != from_sym->shndx()
804 || (*q)->value() != from_sym->value())
807 this->weak_aliases_[from_sym] = *q;
808 from_sym->set_has_alias();
814 this->weak_aliases_[from_sym] = *p;
815 from_sym->set_has_alias();
822 // Create and return a specially defined symbol. If ONLY_IF_REF is
823 // true, then only create the symbol if there is a reference to it.
824 // If this does not return NULL, it sets *POLDSYM to the existing
825 // symbol if there is one. This canonicalizes *PNAME and *PVERSION.
827 template<int size, bool big_endian>
829 Symbol_table::define_special_symbol(const Target* target, const char** pname,
830 const char** pversion, bool only_if_ref,
831 Sized_symbol<size>** poldsym
835 Sized_symbol<size>* sym;
836 bool add_to_table = false;
837 typename Symbol_table_type::iterator add_loc = this->table_.end();
841 oldsym = this->lookup(*pname, *pversion);
842 if (oldsym == NULL || !oldsym->is_undefined())
845 *pname = oldsym->name();
846 *pversion = oldsym->version();
850 // Canonicalize NAME and VERSION.
851 Stringpool::Key name_key;
852 *pname = this->namepool_.add(*pname, true, &name_key);
854 Stringpool::Key version_key = 0;
855 if (*pversion != NULL)
856 *pversion = this->namepool_.add(*pversion, true, &version_key);
858 Symbol* const snull = NULL;
859 std::pair<typename Symbol_table_type::iterator, bool> ins =
860 this->table_.insert(std::make_pair(std::make_pair(name_key,
866 // We already have a symbol table entry for NAME/VERSION.
867 oldsym = ins.first->second;
868 gold_assert(oldsym != NULL);
872 // We haven't seen this symbol before.
873 gold_assert(ins.first->second == NULL);
880 if (!target->has_make_symbol())
881 sym = new Sized_symbol<size>();
884 gold_assert(target->get_size() == size);
885 gold_assert(target->is_big_endian() ? big_endian : !big_endian);
886 typedef Sized_target<size, big_endian> My_target;
887 const My_target* sized_target =
888 static_cast<const My_target*>(target);
889 sym = sized_target->make_symbol();
895 add_loc->second = sym;
897 gold_assert(oldsym != NULL);
899 *poldsym = this->get_sized_symbol SELECT_SIZE_NAME(size) (oldsym
905 // Define a symbol based on an Output_data.
908 Symbol_table::define_in_output_data(const Target* target, const char* name,
909 const char* version, Output_data* od,
910 uint64_t value, uint64_t symsize,
911 elfcpp::STT type, elfcpp::STB binding,
912 elfcpp::STV visibility,
913 unsigned char nonvis,
914 bool offset_is_from_end,
917 if (parameters->get_size() == 32)
919 #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG)
920 return this->do_define_in_output_data<32>(target, name, version, od,
921 value, symsize, type, binding,
929 else if (parameters->get_size() == 64)
931 #if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG)
932 return this->do_define_in_output_data<64>(target, name, version, od,
933 value, symsize, type, binding,
945 // Define a symbol in an Output_data, sized version.
949 Symbol_table::do_define_in_output_data(
950 const Target* target,
954 typename elfcpp::Elf_types<size>::Elf_Addr value,
955 typename elfcpp::Elf_types<size>::Elf_WXword symsize,
958 elfcpp::STV visibility,
959 unsigned char nonvis,
960 bool offset_is_from_end,
963 Sized_symbol<size>* sym;
964 Sized_symbol<size>* oldsym;
966 if (parameters->is_big_endian())
968 #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG)
969 sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) (
970 target, &name, &version, only_if_ref, &oldsym
971 SELECT_SIZE_ENDIAN(size, true));
978 #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE)
979 sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) (
980 target, &name, &version, only_if_ref, &oldsym
981 SELECT_SIZE_ENDIAN(size, false));
990 gold_assert(version == NULL || oldsym != NULL);
991 sym->init(name, od, value, symsize, type, binding, visibility, nonvis,
995 && Symbol_table::should_override_with_special(oldsym))
996 this->override_with_special(oldsym, sym);
1001 // Define a symbol based on an Output_segment.
1004 Symbol_table::define_in_output_segment(const Target* target, const char* name,
1005 const char* version, Output_segment* os,
1006 uint64_t value, uint64_t symsize,
1007 elfcpp::STT type, elfcpp::STB binding,
1008 elfcpp::STV visibility,
1009 unsigned char nonvis,
1010 Symbol::Segment_offset_base offset_base,
1013 if (parameters->get_size() == 32)
1015 #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG)
1016 return this->do_define_in_output_segment<32>(target, name, version, os,
1017 value, symsize, type,
1018 binding, visibility, nonvis,
1019 offset_base, only_if_ref);
1024 else if (parameters->get_size() == 64)
1026 #if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG)
1027 return this->do_define_in_output_segment<64>(target, name, version, os,
1028 value, symsize, type,
1029 binding, visibility, nonvis,
1030 offset_base, only_if_ref);
1039 // Define a symbol in an Output_segment, sized version.
1043 Symbol_table::do_define_in_output_segment(
1044 const Target* target,
1046 const char* version,
1048 typename elfcpp::Elf_types<size>::Elf_Addr value,
1049 typename elfcpp::Elf_types<size>::Elf_WXword symsize,
1051 elfcpp::STB binding,
1052 elfcpp::STV visibility,
1053 unsigned char nonvis,
1054 Symbol::Segment_offset_base offset_base,
1057 Sized_symbol<size>* sym;
1058 Sized_symbol<size>* oldsym;
1060 if (parameters->is_big_endian())
1062 #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG)
1063 sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) (
1064 target, &name, &version, only_if_ref, &oldsym
1065 SELECT_SIZE_ENDIAN(size, true));
1072 #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE)
1073 sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) (
1074 target, &name, &version, only_if_ref, &oldsym
1075 SELECT_SIZE_ENDIAN(size, false));
1084 gold_assert(version == NULL || oldsym != NULL);
1085 sym->init(name, os, value, symsize, type, binding, visibility, nonvis,
1089 && Symbol_table::should_override_with_special(oldsym))
1090 this->override_with_special(oldsym, sym);
1095 // Define a special symbol with a constant value. It is a multiple
1096 // definition error if this symbol is already defined.
1099 Symbol_table::define_as_constant(const Target* target, const char* name,
1100 const char* version, uint64_t value,
1101 uint64_t symsize, elfcpp::STT type,
1102 elfcpp::STB binding, elfcpp::STV visibility,
1103 unsigned char nonvis, bool only_if_ref)
1105 if (parameters->get_size() == 32)
1107 #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG)
1108 return this->do_define_as_constant<32>(target, name, version, value,
1109 symsize, type, binding,
1110 visibility, nonvis, only_if_ref);
1115 else if (parameters->get_size() == 64)
1117 #if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG)
1118 return this->do_define_as_constant<64>(target, name, version, value,
1119 symsize, type, binding,
1120 visibility, nonvis, only_if_ref);
1129 // Define a symbol as a constant, sized version.
1133 Symbol_table::do_define_as_constant(
1134 const Target* target,
1136 const char* version,
1137 typename elfcpp::Elf_types<size>::Elf_Addr value,
1138 typename elfcpp::Elf_types<size>::Elf_WXword symsize,
1140 elfcpp::STB binding,
1141 elfcpp::STV visibility,
1142 unsigned char nonvis,
1145 Sized_symbol<size>* sym;
1146 Sized_symbol<size>* oldsym;
1148 if (parameters->is_big_endian())
1150 #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG)
1151 sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) (
1152 target, &name, &version, only_if_ref, &oldsym
1153 SELECT_SIZE_ENDIAN(size, true));
1160 #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE)
1161 sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) (
1162 target, &name, &version, only_if_ref, &oldsym
1163 SELECT_SIZE_ENDIAN(size, false));
1172 gold_assert(version == NULL || oldsym != NULL);
1173 sym->init(name, value, symsize, type, binding, visibility, nonvis);
1176 && Symbol_table::should_override_with_special(oldsym))
1177 this->override_with_special(oldsym, sym);
1182 // Define a set of symbols in output sections.
1185 Symbol_table::define_symbols(const Layout* layout, const Target* target,
1186 int count, const Define_symbol_in_section* p)
1188 for (int i = 0; i < count; ++i, ++p)
1190 Output_section* os = layout->find_output_section(p->output_section);
1192 this->define_in_output_data(target, p->name, NULL, os, p->value,
1193 p->size, p->type, p->binding,
1194 p->visibility, p->nonvis,
1195 p->offset_is_from_end, p->only_if_ref);
1197 this->define_as_constant(target, p->name, NULL, 0, p->size, p->type,
1198 p->binding, p->visibility, p->nonvis,
1203 // Define a set of symbols in output segments.
1206 Symbol_table::define_symbols(const Layout* layout, const Target* target,
1207 int count, const Define_symbol_in_segment* p)
1209 for (int i = 0; i < count; ++i, ++p)
1211 Output_segment* os = layout->find_output_segment(p->segment_type,
1212 p->segment_flags_set,
1213 p->segment_flags_clear);
1215 this->define_in_output_segment(target, p->name, NULL, os, p->value,
1216 p->size, p->type, p->binding,
1217 p->visibility, p->nonvis,
1218 p->offset_base, p->only_if_ref);
1220 this->define_as_constant(target, p->name, NULL, 0, p->size, p->type,
1221 p->binding, p->visibility, p->nonvis,
1226 // Set the dynamic symbol indexes. INDEX is the index of the first
1227 // global dynamic symbol. Pointers to the symbols are stored into the
1228 // vector SYMS. The names are added to DYNPOOL. This returns an
1229 // updated dynamic symbol index.
1232 Symbol_table::set_dynsym_indexes(const General_options* options,
1233 const Target* target,
1235 std::vector<Symbol*>* syms,
1236 Stringpool* dynpool,
1239 for (Symbol_table_type::iterator p = this->table_.begin();
1240 p != this->table_.end();
1243 Symbol* sym = p->second;
1245 // Note that SYM may already have a dynamic symbol index, since
1246 // some symbols appear more than once in the symbol table, with
1247 // and without a version.
1249 if (!sym->should_add_dynsym_entry())
1250 sym->set_dynsym_index(-1U);
1251 else if (!sym->has_dynsym_index())
1253 sym->set_dynsym_index(index);
1255 syms->push_back(sym);
1256 dynpool->add(sym->name(), false, NULL);
1258 // Record any version information.
1259 if (sym->version() != NULL)
1260 versions->record_version(options, dynpool, sym);
1264 // Finish up the versions. In some cases this may add new dynamic
1266 index = versions->finalize(target, this, index, syms);
1271 // Set the final values for all the symbols. The index of the first
1272 // global symbol in the output file is INDEX. Record the file offset
1273 // OFF. Add their names to POOL. Return the new file offset.
1276 Symbol_table::finalize(unsigned int index, off_t off, off_t dynoff,
1277 size_t dyn_global_index, size_t dyncount,
1282 gold_assert(index != 0);
1283 this->first_global_index_ = index;
1285 this->dynamic_offset_ = dynoff;
1286 this->first_dynamic_global_index_ = dyn_global_index;
1287 this->dynamic_count_ = dyncount;
1289 if (parameters->get_size() == 32)
1291 #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_32_LITTLE)
1292 ret = this->sized_finalize<32>(index, off, pool);
1297 else if (parameters->get_size() == 64)
1299 #if defined(HAVE_TARGET_64_BIG) || defined(HAVE_TARGET_64_LITTLE)
1300 ret = this->sized_finalize<64>(index, off, pool);
1308 // Now that we have the final symbol table, we can reliably note
1309 // which symbols should get warnings.
1310 this->warnings_.note_warnings(this);
1315 // Set the final value for all the symbols. This is called after
1316 // Layout::finalize, so all the output sections have their final
1321 Symbol_table::sized_finalize(unsigned index, off_t off, Stringpool* pool)
1323 off = align_address(off, size >> 3);
1324 this->offset_ = off;
1326 size_t orig_index = index;
1328 const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
1329 for (Symbol_table_type::iterator p = this->table_.begin();
1330 p != this->table_.end();
1333 Sized_symbol<size>* sym = static_cast<Sized_symbol<size>*>(p->second);
1335 // FIXME: Here we need to decide which symbols should go into
1336 // the output file, based on --strip.
1338 // The default version of a symbol may appear twice in the
1339 // symbol table. We only need to finalize it once.
1340 if (sym->has_symtab_index())
1345 gold_assert(!sym->has_symtab_index());
1346 sym->set_symtab_index(-1U);
1347 gold_assert(sym->dynsym_index() == -1U);
1351 typename Sized_symbol<size>::Value_type value;
1353 switch (sym->source())
1355 case Symbol::FROM_OBJECT:
1357 unsigned int shndx = sym->shndx();
1359 // FIXME: We need some target specific support here.
1360 if (shndx >= elfcpp::SHN_LORESERVE
1361 && shndx != elfcpp::SHN_ABS)
1363 gold_error(_("%s: unsupported symbol section 0x%x"),
1364 sym->name(), shndx);
1365 shndx = elfcpp::SHN_UNDEF;
1368 Object* symobj = sym->object();
1369 if (symobj->is_dynamic())
1372 shndx = elfcpp::SHN_UNDEF;
1374 else if (shndx == elfcpp::SHN_UNDEF)
1376 else if (shndx == elfcpp::SHN_ABS)
1377 value = sym->value();
1380 Relobj* relobj = static_cast<Relobj*>(symobj);
1382 Output_section* os = relobj->output_section(shndx, &secoff);
1386 sym->set_symtab_index(-1U);
1387 gold_assert(sym->dynsym_index() == -1U);
1391 value = sym->value() + os->address() + secoff;
1396 case Symbol::IN_OUTPUT_DATA:
1398 Output_data* od = sym->output_data();
1399 value = sym->value() + od->address();
1400 if (sym->offset_is_from_end())
1401 value += od->data_size();
1405 case Symbol::IN_OUTPUT_SEGMENT:
1407 Output_segment* os = sym->output_segment();
1408 value = sym->value() + os->vaddr();
1409 switch (sym->offset_base())
1411 case Symbol::SEGMENT_START:
1413 case Symbol::SEGMENT_END:
1414 value += os->memsz();
1416 case Symbol::SEGMENT_BSS:
1417 value += os->filesz();
1425 case Symbol::CONSTANT:
1426 value = sym->value();
1433 sym->set_value(value);
1435 if (parameters->strip_all())
1436 sym->set_symtab_index(-1U);
1439 sym->set_symtab_index(index);
1440 pool->add(sym->name(), false, NULL);
1446 this->output_count_ = index - orig_index;
1451 // Write out the global symbols.
1454 Symbol_table::write_globals(const Target* target, const Stringpool* sympool,
1455 const Stringpool* dynpool, Output_file* of) const
1457 if (parameters->get_size() == 32)
1459 if (parameters->is_big_endian())
1461 #ifdef HAVE_TARGET_32_BIG
1462 this->sized_write_globals<32, true>(target, sympool, dynpool, of);
1469 #ifdef HAVE_TARGET_32_LITTLE
1470 this->sized_write_globals<32, false>(target, sympool, dynpool, of);
1476 else if (parameters->get_size() == 64)
1478 if (parameters->is_big_endian())
1480 #ifdef HAVE_TARGET_64_BIG
1481 this->sized_write_globals<64, true>(target, sympool, dynpool, of);
1488 #ifdef HAVE_TARGET_64_LITTLE
1489 this->sized_write_globals<64, false>(target, sympool, dynpool, of);
1499 // Write out the global symbols.
1501 template<int size, bool big_endian>
1503 Symbol_table::sized_write_globals(const Target* target,
1504 const Stringpool* sympool,
1505 const Stringpool* dynpool,
1506 Output_file* of) const
1508 const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
1509 unsigned int index = this->first_global_index_;
1510 const off_t oview_size = this->output_count_ * sym_size;
1511 unsigned char* const psyms = of->get_output_view(this->offset_, oview_size);
1513 unsigned int dynamic_count = this->dynamic_count_;
1514 off_t dynamic_size = dynamic_count * sym_size;
1515 unsigned int first_dynamic_global_index = this->first_dynamic_global_index_;
1516 unsigned char* dynamic_view;
1517 if (this->dynamic_offset_ == 0)
1518 dynamic_view = NULL;
1520 dynamic_view = of->get_output_view(this->dynamic_offset_, dynamic_size);
1522 unsigned char* ps = psyms;
1523 for (Symbol_table_type::const_iterator p = this->table_.begin();
1524 p != this->table_.end();
1527 Sized_symbol<size>* sym = static_cast<Sized_symbol<size>*>(p->second);
1529 unsigned int sym_index = sym->symtab_index();
1530 unsigned int dynsym_index;
1531 if (dynamic_view == NULL)
1534 dynsym_index = sym->dynsym_index();
1536 if (sym_index == -1U && dynsym_index == -1U)
1538 // This symbol is not included in the output file.
1542 if (sym_index == index)
1544 else if (sym_index != -1U)
1546 // We have already seen this symbol, because it has a
1548 gold_assert(sym_index < index);
1549 if (dynsym_index == -1U)
1555 typename elfcpp::Elf_types<32>::Elf_Addr value = sym->value();
1556 switch (sym->source())
1558 case Symbol::FROM_OBJECT:
1560 unsigned int in_shndx = sym->shndx();
1562 // FIXME: We need some target specific support here.
1563 if (in_shndx >= elfcpp::SHN_LORESERVE
1564 && in_shndx != elfcpp::SHN_ABS)
1566 gold_error(_("%s: unsupported symbol section 0x%x"),
1567 sym->name(), in_shndx);
1572 Object* symobj = sym->object();
1573 if (symobj->is_dynamic())
1575 if (sym->needs_dynsym_value())
1576 value = target->dynsym_value(sym);
1577 shndx = elfcpp::SHN_UNDEF;
1579 else if (in_shndx == elfcpp::SHN_UNDEF
1580 || in_shndx == elfcpp::SHN_ABS)
1584 Relobj* relobj = static_cast<Relobj*>(symobj);
1586 Output_section* os = relobj->output_section(in_shndx,
1588 gold_assert(os != NULL);
1589 shndx = os->out_shndx();
1595 case Symbol::IN_OUTPUT_DATA:
1596 shndx = sym->output_data()->out_shndx();
1599 case Symbol::IN_OUTPUT_SEGMENT:
1600 shndx = elfcpp::SHN_ABS;
1603 case Symbol::CONSTANT:
1604 shndx = elfcpp::SHN_ABS;
1611 if (sym_index != -1U)
1613 this->sized_write_symbol SELECT_SIZE_ENDIAN_NAME(size, big_endian) (
1614 sym, sym->value(), shndx, sympool, ps
1615 SELECT_SIZE_ENDIAN(size, big_endian));
1619 if (dynsym_index != -1U)
1621 dynsym_index -= first_dynamic_global_index;
1622 gold_assert(dynsym_index < dynamic_count);
1623 unsigned char* pd = dynamic_view + (dynsym_index * sym_size);
1624 this->sized_write_symbol SELECT_SIZE_ENDIAN_NAME(size, big_endian) (
1625 sym, value, shndx, dynpool, pd
1626 SELECT_SIZE_ENDIAN(size, big_endian));
1630 gold_assert(ps - psyms == oview_size);
1632 of->write_output_view(this->offset_, oview_size, psyms);
1633 if (dynamic_view != NULL)
1634 of->write_output_view(this->dynamic_offset_, dynamic_size, dynamic_view);
1637 // Write out the symbol SYM, in section SHNDX, to P. POOL is the
1638 // strtab holding the name.
1640 template<int size, bool big_endian>
1642 Symbol_table::sized_write_symbol(
1643 Sized_symbol<size>* sym,
1644 typename elfcpp::Elf_types<size>::Elf_Addr value,
1646 const Stringpool* pool,
1648 ACCEPT_SIZE_ENDIAN) const
1650 elfcpp::Sym_write<size, big_endian> osym(p);
1651 osym.put_st_name(pool->get_offset(sym->name()));
1652 osym.put_st_value(value);
1653 osym.put_st_size(sym->symsize());
1654 osym.put_st_info(elfcpp::elf_st_info(sym->binding(), sym->type()));
1655 osym.put_st_other(elfcpp::elf_st_other(sym->visibility(), sym->nonvis()));
1656 osym.put_st_shndx(shndx);
1659 // Write out a section symbol. Return the update offset.
1662 Symbol_table::write_section_symbol(const Output_section *os,
1666 if (parameters->get_size() == 32)
1668 if (parameters->is_big_endian())
1670 #ifdef HAVE_TARGET_32_BIG
1671 this->sized_write_section_symbol<32, true>(os, of, offset);
1678 #ifdef HAVE_TARGET_32_LITTLE
1679 this->sized_write_section_symbol<32, false>(os, of, offset);
1685 else if (parameters->get_size() == 64)
1687 if (parameters->is_big_endian())
1689 #ifdef HAVE_TARGET_64_BIG
1690 this->sized_write_section_symbol<64, true>(os, of, offset);
1697 #ifdef HAVE_TARGET_64_LITTLE
1698 this->sized_write_section_symbol<64, false>(os, of, offset);
1708 // Write out a section symbol, specialized for size and endianness.
1710 template<int size, bool big_endian>
1712 Symbol_table::sized_write_section_symbol(const Output_section* os,
1716 const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
1718 unsigned char* pov = of->get_output_view(offset, sym_size);
1720 elfcpp::Sym_write<size, big_endian> osym(pov);
1721 osym.put_st_name(0);
1722 osym.put_st_value(os->address());
1723 osym.put_st_size(0);
1724 osym.put_st_info(elfcpp::elf_st_info(elfcpp::STB_LOCAL,
1725 elfcpp::STT_SECTION));
1726 osym.put_st_other(elfcpp::elf_st_other(elfcpp::STV_DEFAULT, 0));
1727 osym.put_st_shndx(os->out_shndx());
1729 of->write_output_view(offset, sym_size, pov);
1732 // Warnings functions.
1734 // Add a new warning.
1737 Warnings::add_warning(Symbol_table* symtab, const char* name, Object* obj,
1740 name = symtab->canonicalize_name(name);
1741 this->warnings_[name].set(obj, shndx);
1744 // Look through the warnings and mark the symbols for which we should
1745 // warn. This is called during Layout::finalize when we know the
1746 // sources for all the symbols.
1749 Warnings::note_warnings(Symbol_table* symtab)
1751 for (Warning_table::iterator p = this->warnings_.begin();
1752 p != this->warnings_.end();
1755 Symbol* sym = symtab->lookup(p->first, NULL);
1757 && sym->source() == Symbol::FROM_OBJECT
1758 && sym->object() == p->second.object)
1760 sym->set_has_warning();
1762 // Read the section contents to get the warning text. It
1763 // would be nicer if we only did this if we have to actually
1764 // issue a warning. Unfortunately, warnings are issued as
1765 // we relocate sections. That means that we can not lock
1766 // the object then, as we might try to issue the same
1767 // warning multiple times simultaneously.
1769 Task_locker_obj<Object> tl(*p->second.object);
1770 const unsigned char* c;
1772 c = p->second.object->section_contents(p->second.shndx, &len,
1774 p->second.set_text(reinterpret_cast<const char*>(c), len);
1780 // Issue a warning. This is called when we see a relocation against a
1781 // symbol for which has a warning.
1783 template<int size, bool big_endian>
1785 Warnings::issue_warning(const Symbol* sym,
1786 const Relocate_info<size, big_endian>* relinfo,
1787 size_t relnum, off_t reloffset) const
1789 gold_assert(sym->has_warning());
1790 Warning_table::const_iterator p = this->warnings_.find(sym->name());
1791 gold_assert(p != this->warnings_.end());
1792 gold_warning_at_location(relinfo, relnum, reloffset,
1793 "%s", p->second.text.c_str());
1796 // Instantiate the templates we need. We could use the configure
1797 // script to restrict this to only the ones needed for implemented
1800 #ifdef HAVE_TARGET_32_LITTLE
1803 Symbol_table::add_from_relobj<32, false>(
1804 Sized_relobj<32, false>* relobj,
1805 const unsigned char* syms,
1807 const char* sym_names,
1808 size_t sym_name_size,
1809 Symbol** sympointers);
1812 #ifdef HAVE_TARGET_32_BIG
1815 Symbol_table::add_from_relobj<32, true>(
1816 Sized_relobj<32, true>* relobj,
1817 const unsigned char* syms,
1819 const char* sym_names,
1820 size_t sym_name_size,
1821 Symbol** sympointers);
1824 #ifdef HAVE_TARGET_64_LITTLE
1827 Symbol_table::add_from_relobj<64, false>(
1828 Sized_relobj<64, false>* relobj,
1829 const unsigned char* syms,
1831 const char* sym_names,
1832 size_t sym_name_size,
1833 Symbol** sympointers);
1836 #ifdef HAVE_TARGET_64_BIG
1839 Symbol_table::add_from_relobj<64, true>(
1840 Sized_relobj<64, true>* relobj,
1841 const unsigned char* syms,
1843 const char* sym_names,
1844 size_t sym_name_size,
1845 Symbol** sympointers);
1848 #ifdef HAVE_TARGET_32_LITTLE
1851 Symbol_table::add_from_dynobj<32, false>(
1852 Sized_dynobj<32, false>* dynobj,
1853 const unsigned char* syms,
1855 const char* sym_names,
1856 size_t sym_name_size,
1857 const unsigned char* versym,
1859 const std::vector<const char*>* version_map);
1862 #ifdef HAVE_TARGET_32_BIG
1865 Symbol_table::add_from_dynobj<32, true>(
1866 Sized_dynobj<32, true>* dynobj,
1867 const unsigned char* syms,
1869 const char* sym_names,
1870 size_t sym_name_size,
1871 const unsigned char* versym,
1873 const std::vector<const char*>* version_map);
1876 #ifdef HAVE_TARGET_64_LITTLE
1879 Symbol_table::add_from_dynobj<64, false>(
1880 Sized_dynobj<64, false>* dynobj,
1881 const unsigned char* syms,
1883 const char* sym_names,
1884 size_t sym_name_size,
1885 const unsigned char* versym,
1887 const std::vector<const char*>* version_map);
1890 #ifdef HAVE_TARGET_64_BIG
1893 Symbol_table::add_from_dynobj<64, true>(
1894 Sized_dynobj<64, true>* dynobj,
1895 const unsigned char* syms,
1897 const char* sym_names,
1898 size_t sym_name_size,
1899 const unsigned char* versym,
1901 const std::vector<const char*>* version_map);
1904 #ifdef HAVE_TARGET_32_LITTLE
1907 Warnings::issue_warning<32, false>(const Symbol* sym,
1908 const Relocate_info<32, false>* relinfo,
1909 size_t relnum, off_t reloffset) const;
1912 #ifdef HAVE_TARGET_32_BIG
1915 Warnings::issue_warning<32, true>(const Symbol* sym,
1916 const Relocate_info<32, true>* relinfo,
1917 size_t relnum, off_t reloffset) const;
1920 #ifdef HAVE_TARGET_64_LITTLE
1923 Warnings::issue_warning<64, false>(const Symbol* sym,
1924 const Relocate_info<64, false>* relinfo,
1925 size_t relnum, off_t reloffset) const;
1928 #ifdef HAVE_TARGET_64_BIG
1931 Warnings::issue_warning<64, true>(const Symbol* sym,
1932 const Relocate_info<64, true>* relinfo,
1933 size_t relnum, off_t reloffset) const;
1937 } // End namespace gold.