X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;ds=sidebyside;f=gold%2Fresolve.cc;h=a425dc9c30d4ff3b796a56e15cc917f5291b8015;hb=5b6d1e4fa4fc6827c7b3f0e99ff120dfa14d65d2;hp=3c7c7a838246b39edc57523928f865d0c161b66f;hpb=ba4d53bf2b70e0c5adf55bd3e4f815651d372c14;p=deliverable%2Fbinutils-gdb.git diff --git a/gold/resolve.cc b/gold/resolve.cc index 3c7c7a8382..a425dc9c30 100644 --- a/gold/resolve.cc +++ b/gold/resolve.cc @@ -1,6 +1,6 @@ // resolve.cc -- symbol resolution for gold -// Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. +// Copyright (C) 2006-2020 Free Software Foundation, Inc. // Written by Ian Lance Taylor . // This file is part of gold. @@ -92,11 +92,13 @@ Symbol::override_base(const elfcpp::Sym& sym, Object* object, const char* version) { gold_assert(this->source_ == FROM_OBJECT); - this->u_.from_object.object = object; + this->u1_.object = object; this->override_version(version); - this->u_.from_object.shndx = st_shndx; + this->u2_.shndx = st_shndx; this->is_ordinary_shndx_ = is_ordinary; - this->type_ = sym.get_st_type(); + // Don't override st_type from plugin placeholder symbols. + if (object->pluginobj() == NULL) + this->type_ = sym.get_st_type(); this->binding_ = sym.get_st_bind(); this->override_visibility(sym.get_st_visibility()); this->nonvis_ = sym.get_st_nonvis(); @@ -171,7 +173,7 @@ static const unsigned int common_flag = 2 << def_undef_or_common_shift; static unsigned int symbol_to_bits(elfcpp::STB binding, bool is_dynamic, - unsigned int shndx, bool is_ordinary, elfcpp::STT type) + unsigned int shndx, bool is_ordinary) { unsigned int bits; @@ -191,11 +193,12 @@ symbol_to_bits(elfcpp::STB binding, bool is_dynamic, // table. gold_error(_("invalid STB_LOCAL symbol in external symbols")); bits = global_flag; + break; default: // Any target which wants to handle STB_LOOS, etc., needs to // define a resolve method. - gold_error(_("unsupported symbol binding")); + gold_error(_("unsupported symbol binding %d"), static_cast(binding)); bits = global_flag; } @@ -216,9 +219,7 @@ symbol_to_bits(elfcpp::STB binding, bool is_dynamic, break; default: - if (type == elfcpp::STT_COMMON) - bits |= common_flag; - else if (!is_ordinary && Symbol::is_common_shndx(shndx)) + if (!is_ordinary && Symbol::is_common_shndx(shndx)) bits |= common_flag; else bits |= def_flag; @@ -243,18 +244,53 @@ Symbol_table::resolve(Sized_symbol* to, const elfcpp::Sym& sym, unsigned int st_shndx, bool is_ordinary, unsigned int orig_st_shndx, - Object* object, const char* version) + Object* object, const char* version, + bool is_default_version) { + bool to_is_ordinary; + const unsigned int to_shndx = to->shndx(&to_is_ordinary); + + // It's possible for a symbol to be defined in an object file + // using .symver to give it a version, and for there to also be + // a linker script giving that symbol the same version. We + // don't want to give a multiple-definition error for this + // harmless redefinition. + if (to->source() == Symbol::FROM_OBJECT + && to->object() == object + && to->is_defined() + && is_ordinary + && to_is_ordinary + && to_shndx == st_shndx + && to->value() == sym.get_st_value()) + return; + + // Likewise for an absolute symbol defined twice with the same value. + if (!is_ordinary + && st_shndx == elfcpp::SHN_ABS + && !to_is_ordinary + && to_shndx == elfcpp::SHN_ABS + && to->value() == sym.get_st_value()) + return; + if (parameters->target().has_resolve()) { Sized_target* sized_target; sized_target = parameters->sized_target(); - sized_target->resolve(to, sym, object, version); - return; + if (sized_target->resolve(to, sym, object, version)) + return; } if (!object->is_dynamic()) { + if (sym.get_st_type() == elfcpp::STT_COMMON + && (is_ordinary || !Symbol::is_common_shndx(st_shndx))) + { + gold_warning(_("STT_COMMON symbol '%s' in %s " + "is not in a common section"), + to->demangled_name().c_str(), + to->object()->name().c_str()); + return; + } // Record that we've seen this symbol in a regular object. to->set_in_reg(); } @@ -262,15 +298,10 @@ Symbol_table::resolve(Sized_symbol* to, && (to->visibility() == elfcpp::STV_HIDDEN || to->visibility() == elfcpp::STV_INTERNAL)) { - // A dynamic object cannot reference a hidden or internal symbol - // defined in another object. - gold_warning(_("%s symbol '%s' in %s is referenced by DSO %s"), - (to->visibility() == elfcpp::STV_HIDDEN - ? "hidden" - : "internal"), - to->demangled_name().c_str(), - to->object()->name().c_str(), - object->name().c_str()); + // The symbol is hidden, so a reference from a shared object + // cannot bind to it. We tried issuing a warning in this case, + // but that produces false positives when the symbol is + // actually resolved in a different shared object (PR 15574). return; } else @@ -281,19 +312,38 @@ Symbol_table::resolve(Sized_symbol* to, // Record if we've seen this symbol in a real ELF object (i.e., the // symbol is referenced from outside the world known to the plugin). - if (object->pluginobj() == NULL) + if (object->pluginobj() == NULL && !object->is_dynamic()) to->set_in_real_elf(); // If we're processing replacement files, allow new symbols to override // the placeholders from the plugin objects. + // Treat common symbols specially since it is possible that an ELF + // file increased the size of the alignment. if (to->source() == Symbol::FROM_OBJECT) { Pluginobj* obj = to->object()->pluginobj(); if (obj != NULL && parameters->options().plugins()->in_replacement_phase()) { - this->override(to, sym, st_shndx, is_ordinary, object, version); - return; + bool adjust_common = false; + typename Sized_symbol::Size_type tosize = 0; + typename Sized_symbol::Value_type tovalue = 0; + if (to->is_common() + && !is_ordinary && Symbol::is_common_shndx(st_shndx)) + { + adjust_common = true; + tosize = to->symsize(); + tovalue = to->value(); + } + this->override(to, sym, st_shndx, is_ordinary, object, version); + if (adjust_common) + { + if (tosize > to->symsize()) + to->set_symsize(tosize); + if (tovalue > to->value()) + to->set_value(tovalue); + } + return; } } @@ -306,13 +356,12 @@ Symbol_table::resolve(Sized_symbol* to, // inline and the other is not. (Note: not all ODR violations can // be found this way, and not everything this finds is an ODR // violation. But it's helpful to warn about.) - bool to_is_ordinary; if (parameters->options().detect_odr_violations() && (sym.get_st_bind() == elfcpp::STB_WEAK || to->binding() == elfcpp::STB_WEAK) && orig_st_shndx != elfcpp::SHN_UNDEF - && to->shndx(&to_is_ordinary) != elfcpp::SHN_UNDEF && to_is_ordinary + && to_shndx != elfcpp::SHN_UNDEF && sym.get_st_size() != 0 // Ignore weird 0-sized symbols. && to->symsize() != 0 && (sym.get_st_type() != to->type() @@ -322,36 +371,71 @@ Symbol_table::resolve(Sized_symbol* to, && to->name()[0] == '_' && to->name()[1] == 'Z') { Symbol_location fromloc - = { object, orig_st_shndx, sym.get_st_value() }; - Symbol_location toloc = { to->object(), to->shndx(&to_is_ordinary), - to->value() }; + = { object, orig_st_shndx, static_cast(sym.get_st_value()) }; + Symbol_location toloc = { to->object(), to_shndx, + static_cast(to->value()) }; this->candidate_odr_violations_[to->name()].insert(fromloc); this->candidate_odr_violations_[to->name()].insert(toloc); } + // Plugins don't provide a symbol type, so adopt the existing type + // if the FROM symbol is from a plugin. + elfcpp::STT fromtype = (object->pluginobj() != NULL + ? to->type() + : sym.get_st_type()); unsigned int frombits = symbol_to_bits(sym.get_st_bind(), object->is_dynamic(), - st_shndx, is_ordinary, - sym.get_st_type()); + st_shndx, is_ordinary); bool adjust_common_sizes; + bool adjust_dyndef; typename Sized_symbol::Size_type tosize = to->symsize(); - if (Symbol_table::should_override(to, frombits, OBJECT, object, - &adjust_common_sizes)) + if (Symbol_table::should_override(to, frombits, fromtype, OBJECT, + object, &adjust_common_sizes, + &adjust_dyndef, is_default_version)) { + elfcpp::STB orig_tobinding = to->binding(); + typename Sized_symbol::Value_type tovalue = to->value(); this->override(to, sym, st_shndx, is_ordinary, object, version); - if (adjust_common_sizes && tosize > to->symsize()) - to->set_symsize(tosize); + if (adjust_common_sizes) + { + if (tosize > to->symsize()) + to->set_symsize(tosize); + if (tovalue > to->value()) + to->set_value(tovalue); + } + if (adjust_dyndef) + { + // We are overriding an UNDEF or WEAK UNDEF with a DYN DEF. + // Remember which kind of UNDEF it was for future reference. + to->set_undef_binding(orig_tobinding); + } } else { - if (adjust_common_sizes && sym.get_st_size() > tosize) - to->set_symsize(sym.get_st_size()); + if (adjust_common_sizes) + { + if (sym.get_st_size() > tosize) + to->set_symsize(sym.get_st_size()); + if (sym.get_st_value() > to->value()) + to->set_value(sym.get_st_value()); + } + if (adjust_dyndef) + { + // We are keeping a DYN DEF after seeing an UNDEF or WEAK UNDEF. + // Remember which kind of UNDEF it was. + to->set_undef_binding(sym.get_st_bind()); + } // The ELF ABI says that even for a reference to a symbol we // merge the visibility. to->override_visibility(sym.get_st_visibility()); } + // If we have a non-WEAK reference from a regular object to a + // dynamic object, mark the dynamic object as needed. + if (to->is_from_dynobj() && to->in_reg() && !to->is_undef_binding_weak()) + to->object()->set_is_needed(); + if (adjust_common_sizes && parameters->options().warn_common()) { if (tosize > sym.get_st_size()) @@ -380,18 +464,18 @@ Symbol_table::resolve(Sized_symbol* to, bool Symbol_table::should_override(const Symbol* to, unsigned int frombits, - Defined defined, Object* object, - bool* adjust_common_sizes) + elfcpp::STT fromtype, Defined defined, + Object* object, bool* adjust_common_sizes, + bool* adjust_dyndef, bool is_default_version) { *adjust_common_sizes = false; + *adjust_dyndef = false; unsigned int tobits; if (to->source() == Symbol::IS_UNDEFINED) - tobits = symbol_to_bits(to->binding(), false, elfcpp::SHN_UNDEF, true, - to->type()); + tobits = symbol_to_bits(to->binding(), false, elfcpp::SHN_UNDEF, true); else if (to->source() != Symbol::FROM_OBJECT) - tobits = symbol_to_bits(to->binding(), false, elfcpp::SHN_ABS, false, - to->type()); + tobits = symbol_to_bits(to->binding(), false, elfcpp::SHN_ABS, false); else { bool is_ordinary; @@ -399,11 +483,15 @@ Symbol_table::should_override(const Symbol* to, unsigned int frombits, tobits = symbol_to_bits(to->binding(), to->object()->is_dynamic(), shndx, - is_ordinary, - to->type()); + is_ordinary); } - // FIXME: Warn if either but not both of TO and SYM are STT_TLS. + if ((to->type() == elfcpp::STT_TLS) ^ (fromtype == elfcpp::STT_TLS) + && !to->is_placeholder()) + Symbol_table::report_resolve_problem(true, + _("symbol '%s' used as both __thread " + "and non-__thread"), + to, defined, object); // We use a giant switch table for symbol resolution. This code is // unwieldy, but: 1) it is efficient; 2) we definitely handle all @@ -525,57 +613,102 @@ Symbol_table::should_override(const Symbol* to, unsigned int frombits, case DEF * 16 + DYN_DEF: case WEAK_DEF * 16 + DYN_DEF: + // Ignore a dynamic definition if we already have a definition. + return false; + case DYN_DEF * 16 + DYN_DEF: case DYN_WEAK_DEF * 16 + DYN_DEF: - // Ignore a dynamic definition if we already have a definition. + // Ignore a dynamic definition if we already have a definition, + // unless the existing definition is an unversioned definition + // in the same dynamic object, and the new definition is a + // default version. + if (to->object() == object + && to->version() == NULL + && is_default_version) + return true; + // Or, if the existing definition is in an unused --as-needed library, + // and the reference is weak, let the new definition override. + if (to->in_reg() + && to->is_undef_binding_weak() + && to->object()->as_needed() + && !to->object()->is_needed()) + return true; return false; case UNDEF * 16 + DYN_DEF: - case WEAK_UNDEF * 16 + DYN_DEF: case DYN_UNDEF * 16 + DYN_DEF: case DYN_WEAK_UNDEF * 16 + DYN_DEF: // Use a dynamic definition if we have a reference. return true; + case WEAK_UNDEF * 16 + DYN_DEF: + // When overriding a weak undef by a dynamic definition, + // we need to remember that the original undef was weak. + *adjust_dyndef = true; + return true; + case COMMON * 16 + DYN_DEF: case WEAK_COMMON * 16 + DYN_DEF: - case DYN_COMMON * 16 + DYN_DEF: - case DYN_WEAK_COMMON * 16 + DYN_DEF: // Ignore a dynamic definition if we already have a common // definition. return false; case DEF * 16 + DYN_WEAK_DEF: case WEAK_DEF * 16 + DYN_WEAK_DEF: - case DYN_DEF * 16 + DYN_WEAK_DEF: - case DYN_WEAK_DEF * 16 + DYN_WEAK_DEF: // Ignore a weak dynamic definition if we already have a // definition. return false; case UNDEF * 16 + DYN_WEAK_DEF: - case WEAK_UNDEF * 16 + DYN_WEAK_DEF: + // When overriding an undef by a dynamic weak definition, + // we need to remember that the original undef was not weak. + *adjust_dyndef = true; + return true; + case DYN_UNDEF * 16 + DYN_WEAK_DEF: case DYN_WEAK_UNDEF * 16 + DYN_WEAK_DEF: // Use a weak dynamic definition if we have a reference. return true; + case WEAK_UNDEF * 16 + DYN_WEAK_DEF: + // When overriding a weak undef by a dynamic definition, + // we need to remember that the original undef was weak. + *adjust_dyndef = true; + return true; + case COMMON * 16 + DYN_WEAK_DEF: case WEAK_COMMON * 16 + DYN_WEAK_DEF: - case DYN_COMMON * 16 + DYN_WEAK_DEF: - case DYN_WEAK_COMMON * 16 + DYN_WEAK_DEF: // Ignore a weak dynamic definition if we already have a common // definition. return false; + case DYN_COMMON * 16 + DYN_DEF: + case DYN_WEAK_COMMON * 16 + DYN_DEF: + case DYN_DEF * 16 + DYN_WEAK_DEF: + case DYN_WEAK_DEF * 16 + DYN_WEAK_DEF: + case DYN_COMMON * 16 + DYN_WEAK_DEF: + case DYN_WEAK_COMMON * 16 + DYN_WEAK_DEF: + // If the existing definition is in an unused --as-needed library, + // and the reference is weak, let a new dynamic definition override. + if (to->in_reg() + && to->is_undef_binding_weak() + && to->object()->as_needed() + && !to->object()->is_needed()) + return true; + return false; + case DEF * 16 + UNDEF: case WEAK_DEF * 16 + UNDEF: - case DYN_DEF * 16 + UNDEF: - case DYN_WEAK_DEF * 16 + UNDEF: case UNDEF * 16 + UNDEF: // A new undefined reference tells us nothing. return false; + case DYN_DEF * 16 + UNDEF: + case DYN_WEAK_DEF * 16 + UNDEF: + // For a dynamic def, we need to remember which kind of undef we see. + *adjust_dyndef = true; + return false; + case WEAK_UNDEF * 16 + UNDEF: case DYN_UNDEF * 16 + UNDEF: case DYN_WEAK_UNDEF * 16 + UNDEF: @@ -591,17 +724,28 @@ Symbol_table::should_override(const Symbol* to, unsigned int frombits, case DEF * 16 + WEAK_UNDEF: case WEAK_DEF * 16 + WEAK_UNDEF: - case DYN_DEF * 16 + WEAK_UNDEF: - case DYN_WEAK_DEF * 16 + WEAK_UNDEF: case UNDEF * 16 + WEAK_UNDEF: case WEAK_UNDEF * 16 + WEAK_UNDEF: case DYN_UNDEF * 16 + WEAK_UNDEF: - case DYN_WEAK_UNDEF * 16 + WEAK_UNDEF: case COMMON * 16 + WEAK_UNDEF: case WEAK_COMMON * 16 + WEAK_UNDEF: case DYN_COMMON * 16 + WEAK_UNDEF: case DYN_WEAK_COMMON * 16 + WEAK_UNDEF: - // A new weak undefined reference tells us nothing. + // A new weak undefined reference tells us nothing unless the + // exisiting symbol is a dynamic weak reference. + return false; + + case DYN_WEAK_UNDEF * 16 + WEAK_UNDEF: + // A new weak reference overrides an existing dynamic weak reference. + // This is necessary because a dynamic weak reference remembers + // the old binding, which may not be weak. If we keeps the existing + // dynamic weak reference, the weakness may be dropped in the output. + return true; + + case DYN_DEF * 16 + WEAK_UNDEF: + case DYN_WEAK_DEF * 16 + WEAK_UNDEF: + // For a dynamic def, we need to remember which kind of undef we see. + *adjust_dyndef = true; return false; case DEF * 16 + DYN_UNDEF: @@ -783,6 +927,7 @@ Symbol_table::report_resolve_problem(bool is_error, const char* msg, objname = _("linker script"); break; case PREDEFINED: + case INCREMENTAL_BASE: objname = _("linker defined"); break; default: @@ -803,18 +948,77 @@ Symbol_table::report_resolve_problem(bool is_error, const char* msg, gold_info("%s: %s: previous definition here", program_name, objname); } +// Completely override existing symbol. Everything bar name_, +// version_, and is_forced_local_ flag are copied. version_ is +// cleared if from->version_ is clear. Returns true if this symbol +// should be forced local. +bool +Symbol::clone(const Symbol* from) +{ + // Don't allow cloning after dynamic linking info is attached to symbols. + // We aren't prepared to merge such. + gold_assert(!this->has_symtab_index() && !from->has_symtab_index()); + gold_assert(!this->has_dynsym_index() && !from->has_dynsym_index()); + gold_assert(this->got_offset_list() == NULL + && from->got_offset_list() == NULL); + gold_assert(!this->has_plt_offset() && !from->has_plt_offset()); + + if (!from->version_) + this->version_ = from->version_; + this->u1_ = from->u1_; + this->u2_ = from->u2_; + this->type_ = from->type_; + this->binding_ = from->binding_; + this->visibility_ = from->visibility_; + this->nonvis_ = from->nonvis_; + this->source_ = from->source_; + this->is_def_ = from->is_def_; + this->is_forwarder_ = from->is_forwarder_; + this->has_alias_ = from->has_alias_; + this->needs_dynsym_entry_ = from->needs_dynsym_entry_; + this->in_reg_ = from->in_reg_; + this->in_dyn_ = from->in_dyn_; + this->needs_dynsym_value_ = from->needs_dynsym_value_; + this->has_warning_ = from->has_warning_; + this->is_copied_from_dynobj_ = from->is_copied_from_dynobj_; + this->is_ordinary_shndx_ = from->is_ordinary_shndx_; + this->in_real_elf_ = from->in_real_elf_; + this->is_defined_in_discarded_section_ + = from->is_defined_in_discarded_section_; + this->undef_binding_set_ = from->undef_binding_set_; + this->undef_binding_weak_ = from->undef_binding_weak_; + this->is_predefined_ = from->is_predefined_; + this->is_protected_ = from->is_protected_; + this->non_zero_localentry_ = from->non_zero_localentry_; + + return !this->is_forced_local_ && from->is_forced_local_; +} + +template +bool +Sized_symbol::clone(const Sized_symbol* from) +{ + this->value_ = from->value_; + this->symsize_ = from->symsize_; + return Symbol::clone(from); +} + // A special case of should_override which is only called for a strong // defined symbol from a regular object file. This is used when // defining special symbols. bool -Symbol_table::should_override_with_special(const Symbol* to, Defined defined) +Symbol_table::should_override_with_special(const Symbol* to, + elfcpp::STT fromtype, + Defined defined) { bool adjust_common_sizes; + bool adjust_dyn_def; unsigned int frombits = global_flag | regular_flag | def_flag; - bool ret = Symbol_table::should_override(to, frombits, defined, NULL, - &adjust_common_sizes); - gold_assert(!adjust_common_sizes); + bool ret = Symbol_table::should_override(to, frombits, fromtype, defined, + NULL, &adjust_common_sizes, + &adjust_dyn_def, false); + gold_assert(!adjust_common_sizes && !adjust_dyn_def); return ret; } @@ -823,19 +1027,21 @@ Symbol_table::should_override_with_special(const Symbol* to, Defined defined) void Symbol::override_base_with_special(const Symbol* from) { - gold_assert(this->name_ == from->name_ || this->has_alias()); + bool same_name = this->name_ == from->name_; + gold_assert(same_name || this->has_alias()); + + // If we are overriding an undef, remember the original binding. + if (this->is_undefined()) + this->set_undef_binding(this->binding_); this->source_ = from->source_; switch (from->source_) { case FROM_OBJECT: - this->u_.from_object = from->u_.from_object; - break; case IN_OUTPUT_DATA: - this->u_.in_output_data = from->u_.in_output_data; - break; case IN_OUTPUT_SEGMENT: - this->u_.in_output_segment = from->u_.in_output_segment; + this->u1_ = from->u1_; + this->u2_ = from->u2_; break; case IS_CONSTANT: case IS_UNDEFINED: @@ -845,7 +1051,16 @@ Symbol::override_base_with_special(const Symbol* from) break; } - this->override_version(from->version_); + if (same_name) + { + // When overriding a versioned symbol with a special symbol, we + // may be changing the version. This will happen if we see a + // special symbol such as "_end" defined in a shared object with + // one version (from a version script), but we want to define it + // here with a different version (from a different version + // script). + this->version_ = from->version_; + } this->type_ = from->type_; this->binding_ = from->binding_; this->override_visibility(from->visibility_); @@ -859,6 +1074,8 @@ Symbol::override_base_with_special(const Symbol* from) if (from->needs_dynsym_value_) this->needs_dynsym_value_ = true; + this->is_predefined_ = from->is_predefined_; + // We shouldn't see these flags. If we do, we need to handle them // somehow. gold_assert(!from->is_forwarder_); @@ -916,7 +1133,10 @@ Symbol_table::override_with_special(Sized_symbol* tosym, // script to restrict this to only the ones needed for implemented // targets. -#ifdef HAVE_TARGET_32_LITTLE +// We have to instantiate both big and little endian versions because +// these are used by other templates that depends on size only. + +#if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG) template void Symbol_table::resolve<32, false>( @@ -926,10 +1146,9 @@ Symbol_table::resolve<32, false>( bool is_ordinary, unsigned int orig_st_shndx, Object* object, - const char* version); -#endif + const char* version, + bool is_default_version); -#ifdef HAVE_TARGET_32_BIG template void Symbol_table::resolve<32, true>( @@ -939,10 +1158,11 @@ Symbol_table::resolve<32, true>( bool is_ordinary, unsigned int orig_st_shndx, Object* object, - const char* version); + const char* version, + bool is_default_version); #endif -#ifdef HAVE_TARGET_64_LITTLE +#if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG) template void Symbol_table::resolve<64, false>( @@ -952,10 +1172,9 @@ Symbol_table::resolve<64, false>( bool is_ordinary, unsigned int orig_st_shndx, Object* object, - const char* version); -#endif + const char* version, + bool is_default_version); -#ifdef HAVE_TARGET_64_BIG template void Symbol_table::resolve<64, true>( @@ -965,7 +1184,8 @@ Symbol_table::resolve<64, true>( bool is_ordinary, unsigned int orig_st_shndx, Object* object, - const char* version); + const char* version, + bool is_default_version); #endif #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG) @@ -982,4 +1202,11 @@ Symbol_table::override_with_special<64>(Sized_symbol<64>*, const Sized_symbol<64>*); #endif +template +bool +Sized_symbol<32>::clone(const Sized_symbol<32>*); + +template +bool +Sized_symbol<64>::clone(const Sized_symbol<64>*); } // End namespace gold.