// symtab.cc -- the gold symbol table
-// Copyright (C) 2006-2015 Free Software Foundation, Inc.
+// Copyright (C) 2006-2016 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
template<int size>
void
Sized_symbol<size>::init_undefined(const char* name, const char* version,
- elfcpp::STT type, elfcpp::STB binding,
- elfcpp::STV visibility, unsigned char nonvis)
+ Value_type value, elfcpp::STT type,
+ elfcpp::STB binding, elfcpp::STV visibility,
+ unsigned char nonvis)
{
this->init_base_undefined(name, version, type, binding, visibility, nonvis);
- this->value_ = 0;
+ this->value_ = value;
this->symsize_ = 0;
}
: saw_undefined_(0), offset_(0), table_(count), namepool_(),
forwarders_(), commons_(), tls_commons_(), small_commons_(),
large_commons_(), forced_locals_(), warnings_(),
- version_script_(version_script), gc_(NULL), icf_(NULL)
+ version_script_(version_script), gc_(NULL), icf_(NULL),
+ target_symbols_()
{
namepool_.reserve(count);
}
ret = new Sized_symbol<size>();
else
{
- ret = target->make_symbol();
+ ret = target->make_symbol(name, sym.get_st_type(), object,
+ st_shndx, sym.get_st_value());
if (ret == NULL)
{
// This means that we don't want a symbol table
const char* name = sym_names + st_name;
- if (strcmp (name, "__gnu_lto_slim") == 0)
+ if (!parameters->options().relocatable()
+ && strcmp (name, "__gnu_lto_slim") == 0)
gold_info(_("%s: plugin needed to handle lto object"),
relobj->name().c_str());
// A protected symbol in a shared library must be treated as a
// normal symbol when viewed from outside the shared library.
// Implement this by overriding the visibility here.
+ // Likewise, an IFUNC symbol in a shared library must be treated
+ // as a normal FUNC symbol.
elfcpp::Sym<size, big_endian>* psym = &sym;
unsigned char symbuf[sym_size];
elfcpp::Sym<size, big_endian> sym2(symbuf);
- if (sym.get_st_visibility() == elfcpp::STV_PROTECTED)
+ if (sym.get_st_visibility() == elfcpp::STV_PROTECTED
+ || sym.get_st_type() == elfcpp::STT_GNU_IFUNC)
{
memcpy(symbuf, p, sym_size);
elfcpp::Sym_write<size, big_endian> sw(symbuf);
- sw.put_st_other(elfcpp::STV_DEFAULT, sym.get_st_nonvis());
+ if (sym.get_st_visibility() == elfcpp::STV_PROTECTED)
+ sw.put_st_other(elfcpp::STV_DEFAULT, sym.get_st_nonvis());
+ if (sym.get_st_type() == elfcpp::STT_GNU_IFUNC)
+ sw.put_st_info(sym.get_st_bind(), elfcpp::STT_FUNC);
psym = &sym2;
}
{
Sized_target<size, big_endian>* sized_target =
parameters->sized_target<size, big_endian>();
- sym = sized_target->make_symbol();
+ sym = sized_target->make_symbol(*pname, elfcpp::STT_NOTYPE,
+ NULL, elfcpp::SHN_UNDEF, 0);
if (sym == NULL)
return NULL;
}
return sym;
else
{
- if (binding == elfcpp::STB_LOCAL
- || this->version_script_.symbol_is_local(name))
+ if (defined == PREDEFINED
+ && (binding == elfcpp::STB_LOCAL
+ || this->version_script_.symbol_is_local(name)))
this->force_local(oldsym);
delete sym;
return oldsym;
gold_assert(oldsym == NULL);
- sym->init_undefined(name, version, elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL,
+ sym->init_undefined(name, version, 0, elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL,
elfcpp::STV_DEFAULT, 0);
++this->saw_undefined_;
}
// symbols.
index = versions->finalize(this, index, syms);
+ // Process target-specific symbols.
+ for (std::vector<Symbol*>::iterator p = this->target_symbols_.begin();
+ p != this->target_symbols_.end();
+ ++p)
+ {
+ (*p)->set_dynsym_index(index);
+ ++index;
+ syms->push_back(*p);
+ dynpool->add((*p)->name(), false, NULL);
+ }
+
return index;
}
this->add_to_final_symtab<size>(sym, pool, &index, &off);
}
+ // Now do target-specific symbols.
+ for (std::vector<Symbol*>::iterator p = this->target_symbols_.begin();
+ p != this->target_symbols_.end();
+ ++p)
+ {
+ this->add_to_final_symtab<size>(*p, pool, &index, &off);
+ }
+
this->output_count_ = index - orig_index;
return off;
}
}
+ // Write the target-specific symbols.
+ for (std::vector<Symbol*>::const_iterator p = this->target_symbols_.begin();
+ p != this->target_symbols_.end();
+ ++p)
+ {
+ Sized_symbol<size>* sym = static_cast<Sized_symbol<size>*>(*p);
+
+ unsigned int sym_index = sym->symtab_index();
+ unsigned int dynsym_index;
+ if (dynamic_view == NULL)
+ dynsym_index = -1U;
+ else
+ dynsym_index = sym->dynsym_index();
+
+ unsigned int shndx;
+ switch (sym->source())
+ {
+ case Symbol::IS_CONSTANT:
+ shndx = elfcpp::SHN_ABS;
+ break;
+ case Symbol::IS_UNDEFINED:
+ shndx = elfcpp::SHN_UNDEF;
+ break;
+ default:
+ gold_unreachable();
+ }
+
+ if (sym_index != -1U)
+ {
+ sym_index -= first_global_index;
+ gold_assert(sym_index < output_count);
+ unsigned char* ps = psyms + (sym_index * sym_size);
+ this->sized_write_symbol<size, big_endian>(sym, sym->value(), shndx,
+ sym->binding(), sympool,
+ ps);
+ }
+
+ if (dynsym_index != -1U)
+ {
+ dynsym_index -= first_dynamic_global_index;
+ gold_assert(dynsym_index < dynamic_count);
+ unsigned char* pd = dynamic_view + (dynsym_index * sym_size);
+ this->sized_write_symbol<size, big_endian>(sym, sym->value(), shndx,
+ sym->binding(), dynpool,
+ pd);
+ }
+ }
+
of->write_output_view(this->offset_, oview_size, psyms);
if (dynamic_view != NULL)
of->write_output_view(this->dynamic_offset_, dynamic_size, dynamic_view);
else
osym.put_st_size(sym->symsize());
elfcpp::STT type = sym->type();
- // Turn IFUNC symbols from shared libraries into normal FUNC symbols.
- if (type == elfcpp::STT_GNU_IFUNC
- && sym->is_from_dynobj())
- type = elfcpp::STT_FUNC;
+ gold_assert(type != elfcpp::STT_GNU_IFUNC || !sym->is_from_dynobj());
// A version script may have overridden the default binding.
if (sym->is_forced_local())
osym.put_st_info(elfcpp::elf_st_info(elfcpp::STB_LOCAL, type));
unsigned char nonvis,
bool offset_is_from_end,
bool is_predefined);
+
+template
+void
+Sized_symbol<32>::init_constant(const char* name, const char* version,
+ Value_type value, Size_type symsize,
+ elfcpp::STT type, elfcpp::STB binding,
+ elfcpp::STV visibility, unsigned char nonvis,
+ bool is_predefined);
+
+template
+void
+Sized_symbol<32>::init_undefined(const char* name, const char* version,
+ Value_type value, elfcpp::STT type,
+ elfcpp::STB binding, elfcpp::STV visibility,
+ unsigned char nonvis);
#endif
#if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG)
unsigned char nonvis,
bool offset_is_from_end,
bool is_predefined);
+
+template
+void
+Sized_symbol<64>::init_constant(const char* name, const char* version,
+ Value_type value, Size_type symsize,
+ elfcpp::STT type, elfcpp::STB binding,
+ elfcpp::STV visibility, unsigned char nonvis,
+ bool is_predefined);
+
+template
+void
+Sized_symbol<64>::init_undefined(const char* name, const char* version,
+ Value_type value, elfcpp::STT type,
+ elfcpp::STB binding, elfcpp::STV visibility,
+ unsigned char nonvis);
#endif
#ifdef HAVE_TARGET_32_LITTLE
projects / deliverable / binutils-gdb.git / blobdiff