// dynobj.h -- dynamic object support for gold -*- C++ -*-
-// Copyright 2006, 2007 Free Software Foundation, Inc.
+// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
namespace gold
{
-class General_options;
class Version_script_info;
// A dynamic object (ET_DYN). This is an abstract base class itself.
class Sized_dynobj : public Dynobj
{
public:
+ typedef typename Sized_relobj<size, big_endian>::Symbols Symbols;
+
Sized_dynobj(const std::string& name, Input_file* input_file, off_t offset,
const typename elfcpp::Ehdr<size, big_endian>&);
- // Set up the object file based on the ELF header.
+ // Set up the object file based on TARGET.
void
- setup(const typename elfcpp::Ehdr<size, big_endian>&);
+ setup();
// Read the symbols.
void
// Add the symbols to the symbol table.
void
- do_add_symbols(Symbol_table*, Read_symbols_data*);
+ do_add_symbols(Symbol_table*, Read_symbols_data*, Layout*);
// Get the size of a section.
uint64_t
do_section_flags(unsigned int shndx)
{ return this->elf_file_.section_flags(shndx); }
+ // Not used for dynobj.
+ uint64_t
+ do_section_entsize(unsigned int )
+ { gold_unreachable(); }
+
+ // Return section address.
+ uint64_t
+ do_section_address(unsigned int shndx)
+ { return this->elf_file_.section_addr(shndx); }
+
// Return section type.
unsigned int
do_section_type(unsigned int shndx)
do_section_addralign(unsigned int shndx)
{ return this->elf_file_.section_addralign(shndx); }
+ // Return the Xindex structure to use.
+ Xindex*
+ do_initialize_xindex();
+
+ // Get symbol counts.
+ void
+ do_get_global_symbol_counts(const Symbol_table*, size_t*, size_t*) const;
+
private:
// For convenience.
typedef Sized_dynobj<size, big_endian> This;
typedef elfcpp::Shdr<size, big_endian> Shdr;
typedef elfcpp::Dyn<size, big_endian> Dyn;
+ // Adjust a section index if necessary.
+ unsigned int
+ adjust_shndx(unsigned int shndx)
+ {
+ if (shndx >= elfcpp::SHN_LORESERVE)
+ shndx += this->elf_file_.large_shndx_offset();
+ return shndx;
+ }
+
// Find the dynamic symbol table and the version sections, given the
// section headers.
void
find_dynsym_sections(const unsigned char* pshdrs,
- unsigned int* pdynshm_shndx,
unsigned int* pversym_shndx,
unsigned int* pverdef_shndx,
unsigned int* pverneed_shndx,
// General access to the ELF file.
elfcpp::Elf_file<size, big_endian, Object> elf_file_;
+ // The section index of the dynamic symbol table.
+ unsigned int dynsym_shndx_;
+ // The entries in the symbol table for the symbols. We only keep
+ // this if we need it to print symbol information.
+ Symbols* symbols_;
+ // Number of defined symbols.
+ size_t defined_count_;
};
// A base class for Verdef and Verneed_version which just handles the
// Set the version index.
void
- set_index(unsigned int index)
+ set_index(unsigned int vindex)
{
gold_assert(this->index_ == -1U);
- this->index_ = index;
+ this->index_ = vindex;
}
// Clear the weak flag in a version definition.
class Verdef : public Version_base
{
public:
- Verdef(const char* name, const std::vector<std::string>& deps,
- bool is_base, bool is_weak, bool is_symbol_created)
- : name_(name), deps_(deps), is_base_(is_base), is_weak_(is_weak),
- is_symbol_created_(is_symbol_created)
+ Verdef(const char* vname, const std::vector<std::string>& deps,
+ bool is_base, bool vis_weak, bool vis_symbol_created)
+ : name_(vname), deps_(deps), is_base_(is_base), is_weak_(vis_weak),
+ is_symbol_created_(vis_symbol_created)
{ }
// Return the version name.
// Add a dependency to this version. The NAME should be
// canonicalized in the dynamic Stringpool.
void
- add_dependency(const char* name)
- { this->deps_.push_back(name); }
+ add_dependency(const char* dname)
+ { this->deps_.push_back(dname); }
// Return whether this definition is weak.
bool
// Write contents to buffer.
template<int size, bool big_endian>
unsigned char*
- write(const Stringpool*, bool is_last, unsigned char*
- ACCEPT_SIZE_ENDIAN) const;
+ write(const Stringpool*, bool is_last, unsigned char*) const;
private:
Verdef(const Verdef&);
class Verneed_version : public Version_base
{
public:
- Verneed_version(const char* version)
- : version_(version)
+ Verneed_version(const char* ver)
+ : version_(ver)
{ }
// Return the version name.
class Verneed
{
public:
- Verneed(const char* filename)
- : filename_(filename), need_versions_()
+ Verneed(const char* fname)
+ : filename_(fname), need_versions_()
{ }
~Verneed();
// Write contents to buffer.
template<int size, bool big_endian>
unsigned char*
- write(const Stringpool*, bool is_last, unsigned char*
- ACCEPT_SIZE_ENDIAN) const;
+ write(const Stringpool*, bool is_last, unsigned char*) const;
private:
Verneed(const Verneed&);
class Versions
{
public:
- Versions(const General_options&, Stringpool*);
+ Versions(const Version_script_info&, Stringpool*);
~Versions();
symbol_section_contents(const Symbol_table*, const Stringpool*,
unsigned int local_symcount,
const std::vector<Symbol*>& syms,
- unsigned char**, unsigned int*
- ACCEPT_SIZE_ENDIAN) const;
+ unsigned char**, unsigned int*) const;
// Build an allocated buffer holding the contents of the version
// definition section (.gnu.version_d).
template<int size, bool big_endian>
void
def_section_contents(const Stringpool*, unsigned char**,
- unsigned int* psize, unsigned int* pentries
- ACCEPT_SIZE_ENDIAN) const;
+ unsigned int* psize, unsigned int* pentries) const;
// Build an allocated buffer holding the contents of the version
// reference section (.gnu.version_r).
template<int size, bool big_endian>
void
need_section_contents(const Stringpool*, unsigned char**,
- unsigned int* psize, unsigned int* pentries
- ACCEPT_SIZE_ENDIAN) const;
+ unsigned int* psize, unsigned int* pentries) const;
const Version_script_info&
version_script() const
{ return this->version_script_; }
-
+
private:
Versions(const Versions&);
Versions& operator=(const Versions&);
version_index(const Symbol_table*, const Stringpool*,
const Symbol* sym) const;
+ // Define the base version of a shared library.
+ void
+ define_base_version(Stringpool* dynpool);
+
// We keep a hash table mapping canonicalized name/version pairs to
// a version base.
typedef std::pair<Stringpool::Key, Stringpool::Key> Key;
bool is_finalized_;
// Contents of --version-script, if passed, or NULL.
const Version_script_info& version_script_;
+ // Whether we need to insert a base version. This is only used for
+ // shared libaries and is cleared when the base version is defined.
+ bool needs_base_version_;
};
} // End namespace gold.