this->has_got_offset_ = false;
this->has_plt_offset_ = false;
this->has_warning_ = false;
+ this->is_copied_from_dynobj_ = false;
}
// Initialize the fields in the base class Symbol for SYM in OBJECT.
this->symsize_ = symsize;
}
+// Return true if this symbol should be added to the dynamic symbol
+// table.
+
+inline bool
+Symbol::should_add_dynsym_entry() const
+{
+ // If the symbol is used by a dynamic relocation, we need to add it.
+ if (this->needs_dynsym_entry())
+ return true;
+
+ // If exporting all symbols or building a shared library,
+ // and the symbol is defined in a regular object and is
+ // externally visible, we need to add it.
+ if ((parameters->export_dynamic() || parameters->output_is_shared())
+ && !this->is_from_dynobj()
+ && this->is_externally_visible())
+ return true;
+
+ return false;
+}
+
// Return true if the final value of this symbol is known at link
// time.
size_t count,
const char* sym_names,
size_t sym_name_size,
- Symbol** sympointers)
+ typename Sized_relobj<size, big_endian>::Symbols* sympointers)
{
gold_assert(size == relobj->target()->get_size());
gold_assert(size == parameters->get_size());
def, *psym);
}
- *sympointers++ = res;
+ (*sympointers)[i] = res;
}
}
}
}
+// Define CSYM using a COPY reloc. POSD is the Output_data where the
+// symbol should be defined--typically a .dyn.bss section. VALUE is
+// the offset within POSD.
+
+template<int size>
+void
+Symbol_table::define_with_copy_reloc(const Target* target,
+ Sized_symbol<size>* csym,
+ Output_data* posd, uint64_t value)
+{
+ gold_assert(csym->is_from_dynobj());
+ gold_assert(!csym->is_copied_from_dynobj());
+ Object* object = csym->object();
+ gold_assert(object->is_dynamic());
+ Dynobj* dynobj = static_cast<Dynobj*>(object);
+
+ // Our copied variable has to override any variable in a shared
+ // library.
+ elfcpp::STB binding = csym->binding();
+ if (binding == elfcpp::STB_WEAK)
+ binding = elfcpp::STB_GLOBAL;
+
+ this->define_in_output_data(target, csym->name(), csym->version(),
+ posd, value, csym->symsize(),
+ csym->type(), binding,
+ csym->visibility(), csym->nonvis(),
+ false, false);
+
+ csym->set_is_copied_from_dynobj();
+ csym->set_needs_dynsym_entry();
+
+ this->copied_symbol_dynobjs_[csym] = dynobj;
+
+ // We have now defined all aliases, but we have not entered them all
+ // in the copied_symbol_dynobjs_ map.
+ if (csym->has_alias())
+ {
+ Symbol* sym = csym;
+ while (true)
+ {
+ sym = this->weak_aliases_[sym];
+ if (sym == csym)
+ break;
+ gold_assert(sym->output_data() == posd);
+
+ sym->set_is_copied_from_dynobj();
+ this->copied_symbol_dynobjs_[sym] = dynobj;
+ }
+ }
+}
+
+// SYM is defined using a COPY reloc. Return the dynamic object where
+// the original definition was found.
+
+Dynobj*
+Symbol_table::get_copy_source(const Symbol* sym) const
+{
+ gold_assert(sym->is_copied_from_dynobj());
+ Copied_symbol_dynobjs::const_iterator p =
+ this->copied_symbol_dynobjs_.find(sym);
+ gold_assert(p != this->copied_symbol_dynobjs_.end());
+ return p->second;
+}
+
// Set the dynamic symbol indexes. INDEX is the index of the first
// global dynamic symbol. Pointers to the symbols are stored into the
// vector SYMS. The names are added to DYNPOOL. This returns an
// updated dynamic symbol index.
unsigned int
-Symbol_table::set_dynsym_indexes(const General_options* options,
- const Target* target,
+Symbol_table::set_dynsym_indexes(const Target* target,
unsigned int index,
std::vector<Symbol*>* syms,
Stringpool* dynpool,
// some symbols appear more than once in the symbol table, with
// and without a version.
- if (!sym->needs_dynsym_entry()
- && (!options->export_dynamic()
- || !sym->in_reg()
- || !sym->is_externally_visible()))
+ if (!sym->should_add_dynsym_entry())
sym->set_dynsym_index(-1U);
else if (!sym->has_dynsym_index())
{
// Record any version information.
if (sym->version() != NULL)
- versions->record_version(options, dynpool, sym);
+ versions->record_version(this, dynpool, sym);
}
}
size_t count,
const char* sym_names,
size_t sym_name_size,
- Symbol** sympointers);
+ Sized_relobj<32, true>::Symbols* sympointers);
#endif
#ifdef HAVE_TARGET_32_BIG
size_t count,
const char* sym_names,
size_t sym_name_size,
- Symbol** sympointers);
+ Sized_relobj<32, false>::Symbols* sympointers);
#endif
#ifdef HAVE_TARGET_64_LITTLE
size_t count,
const char* sym_names,
size_t sym_name_size,
- Symbol** sympointers);
+ Sized_relobj<64, true>::Symbols* sympointers);
#endif
#ifdef HAVE_TARGET_64_BIG
size_t count,
const char* sym_names,
size_t sym_name_size,
- Symbol** sympointers);
+ Sized_relobj<64, false>::Symbols* sympointers);
#endif
#ifdef HAVE_TARGET_32_LITTLE
const std::vector<const char*>* version_map);
#endif
+#if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG)
+template
+void
+Symbol_table::define_with_copy_reloc<32>(const Target* target,
+ Sized_symbol<32>* sym,
+ Output_data* posd, uint64_t value);
+#endif
+
+#if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG)
+template
+void
+Symbol_table::define_with_copy_reloc<64>(const Target* target,
+ Sized_symbol<64>* sym,
+ Output_data* posd, uint64_t value);
+#endif
+
#ifdef HAVE_TARGET_32_LITTLE
template
void
size_t relnum, off_t reloffset) const;
#endif
-
} // End namespace gold.
projects / binutils-gdb.git / blobdiff