2009-10-09 Doug Kwan <dougkwan@google.com>

	* layout.cc (Layout::make_output_section): Call target hook to make
	ordinary output section.
	(Layout::finalize): Adjust parameter list of call the
	Target::may_relax().
	* layout.h (class Layout::section_list): New method.
	* merge.h (Output_merge_base::entsize): Change visibility to public.
	(Output_merge_base::is_string, Output_merge_base::do_is_string):
	New methods.
	(Output_merge_string::do_is_string): New method.
	* object.cc (Sized_relobj::do_setup): renamed from
	Sized_relobj::set_up.
	* object.h (Sized_relobj::adjust_shndx,
	Sized_relobj::initializ_input_to_output_maps,
	Sized_relobj::free_input_to_output_maps): Change visibilities to
	protected.
	(Sized_relobj::setup): Virtualize.
	(Sized_relobj::do_setup): New method declaration.
	(Sized_relobj::invalidate_section_offset,
	Sized_relobj::do_invalidate_section_offset): New method decfinitions.
	(Sized_relobj::elf_file, Sized_relobj::local_values): New methods.
	* options.cc (parse_int): New function.
	* options.h (parse_int): New declaration.
	(DEFINE_int): New macro.
	(stub_group_size): New option.
	* output.cc (Output_section::Output_section): Initialize memebers
	merge_section_map_, merge_section_by_properties_map_,
	relaxed_input_section_map_, is_relaxed_input_section_map_valid_.
	(Output_section::add_input_section): Handled deferred code-fill
	generation and remove an old comment.
	(Output_section::add_relaxed_input_section): New method definition.
	(Output_section::add_merge_input_section): Use merge section by
	properties map to speed to search.  Update merge section maps
	as appropriate.
	(Output_section::build_relaxation_map): New method definition.
	(Output_section::convert_input_sections_in_list_to_relaxed_sections):
	Same.
	(Output_section::relax_input_section): Renamed to
	Output_section::convert_input_sections_to_relaxed_sections and change
	interface to take a vector of pointers to relaxed sections.
	(Output_section::find_merge_section,
	Output_section::find_relaxed_input_section): New method definitions.
	(Output_section::is_input_address_mapped,
	Output_section::output_offset, Output_section::output_address):
	Use output section data maps to speed up searching.
	(Output_section::find_starting_output_address): Add comments.
	(Output_section::do_write,
	Output_section::write_to_postprocessing_buffer): Do code-fill
	generation as appropriate.
	(Output_section::get_input_sections): Invalidate relaxed input section
	map.
	(Output_section::restore_states): Adjust type of checkpoint .
	Invalidate relaxed input section map.
	* output.h (Output_merge_base): New class declaration.
	(Input_section_specifier): New class defintion.
	(class Output_relaxed_input_section) Change base class to
	Output_section_data_build.
	(Output_relaxed_input_section::Output_relaxed_input_section): Adjust
	base class initializer.
	(Output_section::add_relaxed_input_section): New method declaration.
	(Output_section::Input_section): Change visibility to protected.
     	(Output_section::Input_section::relobj,
	Output_section::Input_section::shndx): Handle relaxed input sections.
	Output_section::input_sections) Change visibility to protected.  Also
	define overload to return a non-const pointer.
	(Output_section::Merge_section_properties): New class defintion.
	(Output_section::Merge_section_by_properties_map,
	Output_section::Output_section_data_by_input_section_map,
	Output_section::Relaxation_map): New types.
	(Output_section::relax_input_section): Rename method to
	Output_section::convert_input_sections_to_relaxed_sections and change
	interface to take a vector of relaxed section pointers.
	(Output_section::find_merge_section,
	Output_section::find_relaxed_input_section,
	Output_section::build_relaxation_map,
	Output_section::convert_input_sections_in_list_to_relaxed_sections):
	New method declarations.
	(Output_section::merge_section_map_
	Output_section::merge_section_by_properties_map_,
	Output_section::relaxed_input_section_map_,
	Output_section::is_relaxed_input_section_map_valid_,
	Output_section::generate_code_fills_at_write_): New data members.
	* script-sections.cc
	(Output_section_element_input::set_section_addresses): Call
	current_data_size and addralign methods of relaxed input sections.
	(Orphan_output_section::set_section_addresses): Call current_data_size
	and addralign methods of relaxed input sections.
	* symtab.cc (Symbol_table::compute_final_value): Extract template
	from the body of Symbol_table::sized_finalize_symbol.
	(Symbol_table::sized_finalized_symbol): Call
	Symbol_table::compute_final_value.
	* symtab.h (Symbol_table::Compute_final_value_status): New enum type.
	(Symbol_table::compute_final_value): New templated method declaration.
	* target.cc (Target::do_make_output_section): New method defintion.
	* target.h (Target::make_output_section): New method declaration.
	(Target::relax): Add more parameters for input objects, symbol table
	and layout.  Adjust call to do_relax.
	(Target::do_make_output_section): New method declaration.
	(Target::do_relax): Add parameters for input objects, symbol table
	and layout.

1 files changed, 16 insertions, 4 deletions

diff --git a/gold/target.h b/gold/target.h
index 68d89dc..67397c3 100644
--- a/gold/target.h
+++ b/gold/target.h
@@ -242,6 +242,12 @@ class Target
 		  off_t offset, const elfcpp::Ehdr<size, big_endian>& ehdr)
   { return this->do_make_elf_object(name, input_file, offset, ehdr); }
 
+  // Make an output section.
+  Output_section*
+  make_output_section(const char* name, elfcpp::Elf_Word type,
+		      elfcpp::Elf_Xword flags)
+  { return this->do_make_output_section(name, type, flags); }
+
   // Return true if target wants to perform relaxation.
   bool
   may_relax() const
@@ -255,14 +261,15 @@ class Target
 
   // Perform a relaxation pass.  Return true if layout may be changed.
   bool
-  relax(int pass)
+  relax(int pass, const Input_objects* input_objects, Symbol_table* symtab,
+	Layout* layout)
   {
     // Run the dummy relaxation pass twice if relaxation debugging is enabled.
     if (is_debugging_enabled(DEBUG_RELAXATION))
       return pass < 2;
 
-    return this->do_relax(pass);
-  }
+    return this->do_relax(pass, input_objects, symtab, layout);
+  } 
 
  protected:
   // This struct holds the constant information for a child class.  We
@@ -386,6 +393,11 @@ class Target
 		     off_t offset, const elfcpp::Ehdr<64, true>& ehdr);
 #endif
 
+  // Virtual functions which may be overriden by the child class.
+  virtual Output_section*
+  do_make_output_section(const char* name, elfcpp::Elf_Word type,
+			 elfcpp::Elf_Xword flags);
+
   // Virtual function which may be overriden by the child class.
   virtual bool
   do_may_relax() const
@@ -393,7 +405,7 @@ class Target
 
   // Virtual function which may be overriden by the child class.
   virtual bool
-  do_relax(int)
+  do_relax(int, const Input_objects*, Symbol_table*, Layout*)
   { return false; }
 
   // A function for targets to call.  Return whether BYTES/LEN matches