this->symtab_index_ = 0;
this->dynsym_index_ = 0;
this->got_offset_ = 0;
+ this->plt_offset_ = 0;
this->type_ = type;
this->binding_ = binding;
this->visibility_ = visibility;
this->is_def_ = false;
this->is_forwarder_ = false;
this->needs_dynsym_entry_ = false;
+ this->in_reg_ = false;
this->in_dyn_ = false;
this->has_got_offset_ = false;
+ this->has_plt_offset_ = false;
this->has_warning_ = false;
}
// FIXME: Handle SHN_XINDEX.
this->u_.from_object.shndx = sym.get_st_shndx();
this->source_ = FROM_OBJECT;
+ this->in_reg_ = !object->is_dynamic();
this->in_dyn_ = object->is_dynamic();
}
this->u_.in_output_data.output_data = od;
this->u_.in_output_data.offset_is_from_end = offset_is_from_end;
this->source_ = IN_OUTPUT_DATA;
+ this->in_reg_ = true;
}
// Initialize the fields in the base class Symbol for a symbol defined
this->u_.in_output_segment.output_segment = os;
this->u_.in_output_segment.offset_base = offset_base;
this->source_ = IN_OUTPUT_SEGMENT;
+ this->in_reg_ = true;
}
// Initialize the fields in the base class Symbol for a symbol defined
{
this->init_fields(name, NULL, type, binding, visibility, nonvis);
this->source_ = CONSTANT;
+ this->in_reg_ = true;
}
// Initialize the fields in Sized_symbol for SYM in OBJECT.
template<int size, bool big_endian>
void
-Symbol_table::resolve(Sized_symbol<size>* to, const Sized_symbol<size>* from
- ACCEPT_SIZE_ENDIAN)
+Symbol_table::resolve(Sized_symbol<size>* to, const Sized_symbol<size>* from,
+ const char* version ACCEPT_SIZE_ENDIAN)
{
unsigned char buf[elfcpp::Elf_sizes<size>::sym_size];
elfcpp::Sym_write<size, big_endian> esym(buf);
esym.put_st_info(from->binding(), from->type());
esym.put_st_other(from->visibility(), from->nonvis());
esym.put_st_shndx(from->shndx());
- Symbol_table::resolve(to, esym.sym(), from->object());
+ Symbol_table::resolve(to, esym.sym(), from->object(), version);
+ if (from->in_reg())
+ to->set_in_reg();
+ if (from->in_dyn())
+ to->set_in_dyn();
}
// Add one symbol from OBJECT to the symbol table. NAME is symbol
was_undefined = ret->is_undefined();
was_common = ret->is_common();
- Symbol_table::resolve(ret, sym, object);
+ Symbol_table::resolve(ret, sym, object, version);
if (def)
{
insdef.first->second
SELECT_SIZE(size));
Symbol_table::resolve SELECT_SIZE_ENDIAN_NAME(size, big_endian) (
- ret, sym2 SELECT_SIZE_ENDIAN(size, big_endian));
+ ret, sym2, version SELECT_SIZE_ENDIAN(size, big_endian));
this->make_forwarder(insdef.first->second, ret);
insdef.first->second = ret;
}
if (def && !insdef.second)
{
- // We already have an entry for NAME/NULL. Make
- // NAME/VERSION point to it.
+ // We already have an entry for NAME/NULL. If we override
+ // it, then change it to NAME/VERSION.
ret = this->get_sized_symbol SELECT_SIZE_NAME(size) (
insdef.first->second
SELECT_SIZE(size));
- Symbol_table::resolve(ret, sym, object);
+ Symbol_table::resolve(ret, sym, object, version);
ins.first->second = ret;
}
else
template<int size, bool big_endian>
Sized_symbol<size>*
-Symbol_table::define_special_symbol(Target* target, const char* name,
- bool only_if_ref
+Symbol_table::define_special_symbol(const Target* target, const char* name,
+ const char* version, bool only_if_ref
ACCEPT_SIZE_ENDIAN)
{
gold_assert(this->size_ == size);
if (only_if_ref)
{
- oldsym = this->lookup(name, NULL);
+ oldsym = this->lookup(name, version);
if (oldsym == NULL || !oldsym->is_undefined())
return NULL;
sym = NULL;
- // Canonicalize NAME.
+ // Canonicalize NAME and VERSION.
name = oldsym->name();
+ version = oldsym->version();
}
else
{
- // Canonicalize NAME.
+ // Canonicalize NAME and VERSION.
Stringpool::Key name_key;
name = this->namepool_.add(name, &name_key);
+ Stringpool::Key version_key = 0;
+ if (version != NULL)
+ version = this->namepool_.add(version, &version_key);
+
Symbol* const snull = NULL;
- const Stringpool::Key ver_key = 0;
std::pair<typename Symbol_table_type::iterator, bool> ins =
- this->table_.insert(std::make_pair(std::make_pair(name_key, ver_key),
+ this->table_.insert(std::make_pair(std::make_pair(name_key,
+ version_key),
snull));
if (!ins.second)
{
- // We already have a symbol table entry for NAME.
+ // We already have a symbol table entry for NAME/VERSION.
oldsym = ins.first->second;
gold_assert(oldsym != NULL);
sym = NULL;
gold_assert(target->get_size() == size);
gold_assert(target->is_big_endian() ? big_endian : !big_endian);
typedef Sized_target<size, big_endian> My_target;
- My_target* sized_target = static_cast<My_target*>(target);
+ const My_target* sized_target =
+ static_cast<const My_target*>(target);
sym = sized_target->make_symbol();
if (sym == NULL)
return NULL;
// Define a symbol based on an Output_data.
-void
-Symbol_table::define_in_output_data(Target* target, const char* name,
- Output_data* od,
+Symbol*
+Symbol_table::define_in_output_data(const Target* target, const char* name,
+ const char* version, Output_data* od,
uint64_t value, uint64_t symsize,
elfcpp::STT type, elfcpp::STB binding,
elfcpp::STV visibility,
{
gold_assert(target->get_size() == this->size_);
if (this->size_ == 32)
- this->do_define_in_output_data<32>(target, name, od, value, symsize,
- type, binding, visibility, nonvis,
- offset_is_from_end, only_if_ref);
+ return this->do_define_in_output_data<32>(target, name, version, od, value,
+ symsize, type, binding,
+ visibility, nonvis,
+ offset_is_from_end, only_if_ref);
else if (this->size_ == 64)
- this->do_define_in_output_data<64>(target, name, od, value, symsize,
- type, binding, visibility, nonvis,
- offset_is_from_end, only_if_ref);
+ return this->do_define_in_output_data<64>(target, name, version, od, value,
+ symsize, type, binding,
+ visibility, nonvis,
+ offset_is_from_end, only_if_ref);
else
gold_unreachable();
}
// Define a symbol in an Output_data, sized version.
template<int size>
-void
+Sized_symbol<size>*
Symbol_table::do_define_in_output_data(
- Target* target,
+ const Target* target,
const char* name,
+ const char* version,
Output_data* od,
typename elfcpp::Elf_types<size>::Elf_Addr value,
typename elfcpp::Elf_types<size>::Elf_WXword symsize,
if (target->is_big_endian())
sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) (
- target, name, only_if_ref
+ target, name, version, only_if_ref
SELECT_SIZE_ENDIAN(size, true));
else
sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) (
- target, name, only_if_ref
+ target, name, version, only_if_ref
SELECT_SIZE_ENDIAN(size, false));
if (sym == NULL)
- return;
+ return NULL;
sym->init(name, od, value, symsize, type, binding, visibility, nonvis,
offset_is_from_end);
+
+ return sym;
}
// Define a symbol based on an Output_segment.
-void
-Symbol_table::define_in_output_segment(Target* target, const char* name,
- Output_segment* os,
+Symbol*
+Symbol_table::define_in_output_segment(const Target* target, const char* name,
+ const char* version, Output_segment* os,
uint64_t value, uint64_t symsize,
elfcpp::STT type, elfcpp::STB binding,
elfcpp::STV visibility,
{
gold_assert(target->get_size() == this->size_);
if (this->size_ == 32)
- this->do_define_in_output_segment<32>(target, name, os, value, symsize,
- type, binding, visibility, nonvis,
- offset_base, only_if_ref);
+ return this->do_define_in_output_segment<32>(target, name, version, os,
+ value, symsize, type, binding,
+ visibility, nonvis,
+ offset_base, only_if_ref);
else if (this->size_ == 64)
- this->do_define_in_output_segment<64>(target, name, os, value, symsize,
- type, binding, visibility, nonvis,
- offset_base, only_if_ref);
+ return this->do_define_in_output_segment<64>(target, name, version, os,
+ value, symsize, type, binding,
+ visibility, nonvis,
+ offset_base, only_if_ref);
else
gold_unreachable();
}
// Define a symbol in an Output_segment, sized version.
template<int size>
-void
+Sized_symbol<size>*
Symbol_table::do_define_in_output_segment(
- Target* target,
+ const Target* target,
const char* name,
+ const char* version,
Output_segment* os,
typename elfcpp::Elf_types<size>::Elf_Addr value,
typename elfcpp::Elf_types<size>::Elf_WXword symsize,
if (target->is_big_endian())
sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) (
- target, name, only_if_ref
+ target, name, version, only_if_ref
SELECT_SIZE_ENDIAN(size, true));
else
sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) (
- target, name, only_if_ref
+ target, name, version, only_if_ref
SELECT_SIZE_ENDIAN(size, false));
if (sym == NULL)
- return;
+ return NULL;
sym->init(name, os, value, symsize, type, binding, visibility, nonvis,
offset_base);
+
+ return sym;
}
// Define a special symbol with a constant value. It is a multiple
// definition error if this symbol is already defined.
-void
-Symbol_table::define_as_constant(Target* target, const char* name,
- uint64_t value, uint64_t symsize,
- elfcpp::STT type, elfcpp::STB binding,
- elfcpp::STV visibility, unsigned char nonvis,
- bool only_if_ref)
+Symbol*
+Symbol_table::define_as_constant(const Target* target, const char* name,
+ const char* version, uint64_t value,
+ uint64_t symsize, elfcpp::STT type,
+ elfcpp::STB binding, elfcpp::STV visibility,
+ unsigned char nonvis, bool only_if_ref)
{
gold_assert(target->get_size() == this->size_);
if (this->size_ == 32)
- this->do_define_as_constant<32>(target, name, value, symsize,
- type, binding, visibility, nonvis,
- only_if_ref);
+ return this->do_define_as_constant<32>(target, name, version, value,
+ symsize, type, binding, visibility,
+ nonvis, only_if_ref);
else if (this->size_ == 64)
- this->do_define_as_constant<64>(target, name, value, symsize,
- type, binding, visibility, nonvis,
- only_if_ref);
+ return this->do_define_as_constant<64>(target, name, version, value,
+ symsize, type, binding, visibility,
+ nonvis, only_if_ref);
else
gold_unreachable();
}
// Define a symbol as a constant, sized version.
template<int size>
-void
+Sized_symbol<size>*
Symbol_table::do_define_as_constant(
- Target* target,
+ const Target* target,
const char* name,
+ const char* version,
typename elfcpp::Elf_types<size>::Elf_Addr value,
typename elfcpp::Elf_types<size>::Elf_WXword symsize,
elfcpp::STT type,
if (target->is_big_endian())
sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, true) (
- target, name, only_if_ref
+ target, name, version, only_if_ref
SELECT_SIZE_ENDIAN(size, true));
else
sym = this->define_special_symbol SELECT_SIZE_ENDIAN_NAME(size, false) (
- target, name, only_if_ref
+ target, name, version, only_if_ref
SELECT_SIZE_ENDIAN(size, false));
if (sym == NULL)
- return;
+ return NULL;
sym->init(name, value, symsize, type, binding, visibility, nonvis);
+
+ return sym;
}
// Define a set of symbols in output sections.
void
-Symbol_table::define_symbols(const Layout* layout, Target* target, int count,
- const Define_symbol_in_section* p)
+Symbol_table::define_symbols(const Layout* layout, const Target* target,
+ int count, const Define_symbol_in_section* p)
{
for (int i = 0; i < count; ++i, ++p)
{
Output_section* os = layout->find_output_section(p->output_section);
if (os != NULL)
- this->define_in_output_data(target, p->name, os, p->value, p->size,
- p->type, p->binding, p->visibility,
- p->nonvis, p->offset_is_from_end,
- p->only_if_ref);
+ this->define_in_output_data(target, p->name, NULL, os, p->value,
+ p->size, p->type, p->binding,
+ p->visibility, p->nonvis,
+ p->offset_is_from_end, p->only_if_ref);
else
- this->define_as_constant(target, p->name, 0, p->size, p->type,
+ this->define_as_constant(target, p->name, NULL, 0, p->size, p->type,
p->binding, p->visibility, p->nonvis,
p->only_if_ref);
}
// Define a set of symbols in output segments.
void
-Symbol_table::define_symbols(const Layout* layout, Target* target, int count,
- const Define_symbol_in_segment* p)
+Symbol_table::define_symbols(const Layout* layout, const Target* target,
+ int count, const Define_symbol_in_segment* p)
{
for (int i = 0; i < count; ++i, ++p)
{
p->segment_flags_set,
p->segment_flags_clear);
if (os != NULL)
- this->define_in_output_segment(target, p->name, os, p->value, p->size,
- p->type, p->binding, p->visibility,
- p->nonvis, p->offset_base,
- p->only_if_ref);
+ this->define_in_output_segment(target, p->name, NULL, os, p->value,
+ p->size, p->type, p->binding,
+ p->visibility, p->nonvis,
+ p->offset_base, p->only_if_ref);
else
- this->define_as_constant(target, p->name, 0, p->size, p->type,
+ this->define_as_constant(target, p->name, NULL, 0, p->size, p->type,
p->binding, p->visibility, p->nonvis,
p->only_if_ref);
}
// updated dynamic symbol index.
unsigned int
-Symbol_table::set_dynsym_indexes(unsigned int index,
+Symbol_table::set_dynsym_indexes(const General_options* options,
+ const Target* target,
+ unsigned int index,
std::vector<Symbol*>* syms,
- Stringpool* dynpool)
+ Stringpool* dynpool,
+ Versions* versions)
{
for (Symbol_table_type::iterator p = this->table_.begin();
p != this->table_.end();
// some symbols appear more than once in the symbol table, with
// and without a version.
- if (!sym->needs_dynsym_entry())
+ if (!sym->needs_dynsym_entry()
+ && (!options->export_dynamic()
+ || !sym->in_reg()
+ || !sym->is_externally_visible()))
sym->set_dynsym_index(-1U);
else if (!sym->has_dynsym_index())
{
++index;
syms->push_back(sym);
dynpool->add(sym->name(), NULL);
+
+ // Record any version information.
+ if (sym->version() != NULL)
+ versions->record_version(options, dynpool, sym);
}
}
+ // Finish up the versions. In some cases this may add new dynamic
+ // symbols.
+ index = versions->finalize(target, this, index, syms);
+
return index;
}
if (sym->has_symtab_index())
continue;
+ if (!sym->in_reg())
+ {
+ gold_assert(!sym->has_symtab_index());
+ sym->set_symtab_index(-1U);
+ gold_assert(sym->dynsym_index() == -1U);
+ continue;
+ }
+
typename Sized_symbol<size>::Value_type value;
switch (sym->source())