FreeChainXenon/binutils-gdb
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* compressed_output.cc (zlib_decompress): New function.

Browse source 
(get_uncompressed_size): New function.
	(decompress_input_section): New function.
	* compressed_output.h (get_uncompressed_size): New function.
	(decompress_input_section): New function.
	* dwarf_reader.cc (Sized_dwarf_line_info::Sized_dwarf_line_info)
	Handle compressed debug sections.
	* layout.cc (is_compressed_debug_section): New function.
	(Layout::output_section_name): Map compressed section names to
	canonical names.
	* layout.h (is_compressed_debug_section): New function.
	(is_debug_info_section): Recognize compressed debug sections.
	* merge.cc: Include compressed_output.h.
	(Output_merge_data::do_add_input_section): Handle compressed
	debug sections.
	(Output_merge_string::do_add_input_section): Handle compressed
	debug sections.
	* object.cc: Include compressed_output.h.
	(Sized_relobj::Sized_relobj): Initialize new data members.
	(build_compressed_section_map): New function.
	(Sized_relobj::do_read_symbols): Handle compressed debug sections.
	* object.h (Object::section_is_compressed): New method.
	(Object::do_section_is_compressed): New method.
	(Sized_relobj::Compressed_section_map): New type.
	(Sized_relobj::do_section_is_compressed): New method.
	(Sized_relobj::compressed_sections_): New data member.
	* output.cc (Output_section::add_input_section): Handle compressed
	debug sections.
	* reloc.cc: Include compressed_output.h.
	(Sized_relobj::write_sections): Handle compressed debug sections.
This commit is contained in:
Cary Coutant 2010-07-12 17:59:58 +00:00
parent add265ae41
commit a2e4736229
11 changed files with 358 additions and 17 deletions
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40
gold/object.h
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@ -518,6 +518,13 @@ class Object
set_no_export(bool value)
{ this->no_export_ = value; }
// Return TRUE if the section is a compressed debug section, and set
// *UNCOMPRESSED_SIZE to the size of the uncompressed data.
bool
section_is_compressed(unsigned int shndx,
section_size_type* uncompressed_size) const
{ return this->do_section_is_compressed(shndx, uncompressed_size); }
protected:
// Returns NULL for Objects that are not plugin objects. This method
// is overridden in the Pluginobj class.
@ -628,6 +635,12 @@ class Object
bool
handle_split_stack_section(const char* name);
// Return TRUE if the section is a compressed debug section, and set
// *UNCOMPRESSED_SIZE to the size of the uncompressed data.
virtual bool
do_section_is_compressed(unsigned int, section_size_type*) const
{ return false; }
private:
// This class may not be copied.
Object(const Object&);
@ -1406,6 +1419,10 @@ class Reloc_symbol_changes
std::vector<Symbol*> vec_;
};
// Type for mapping section index to uncompressed size.
typedef std::map<unsigned int, section_size_type> Compressed_section_map;
// A regular object file. This is size and endian specific.
template<int size, bool big_endian>
@ -1781,7 +1798,26 @@ class Sized_relobj : public Relobj
void
set_output_local_symbol_count(unsigned int value)
{ this->output_local_symbol_count_ = value; }
// Return TRUE if the section is a compressed debug section, and set
// *UNCOMPRESSED_SIZE to the size of the uncompressed data.
bool
do_section_is_compressed(unsigned int shndx,
section_size_type* uncompressed_size) const
{
if (this->compressed_sections_ == NULL)
return false;
Compressed_section_map::const_iterator p =
this->compressed_sections_->find(shndx);
if (p != this->compressed_sections_->end())
{
if (uncompressed_size != NULL)
*uncompressed_size = p->second;
return true;
}
return false;
}
private:
// For convenience.
typedef Sized_relobj<size, big_endian> This;
@ -2024,6 +2060,8 @@ class Sized_relobj : public Relobj
std::vector<Deferred_layout> deferred_layout_;
// The list of relocation sections whose layout was deferred.
std::vector<Deferred_layout> deferred_layout_relocs_;
// For compressed debug sections, map section index to uncompressed size.
Compressed_section_map* compressed_sections_;
};
// A class to manage the list of all objects.