* incremental.cc (Incremental_inputs_header_data): Renamed from

	Incremental_input_header_data.
	(Incremental_inputs_header_data::data_size): New field.
	(Incremental_inputs_header_data::put_input_file_count): Renamed
	from input_file_count.
	(Incremental_inputs_header_data::put_command_line_offset): Renamed
	from command_line_offset.
	(Incremental_inputs_header_data::put_reserved): Renamed from
	put_reserved.
	(Incremental_inputs_entry_data): Renamed from
	Incremental_input_entry_data.
	(Incremental_inputs_entry_data::data_size): New field.
	(Incremental_inputs::report_command_line): New method.
	(Incremental_inputs::finalize): New method.
	(Incremental_inputs::create_incremental_inputs_data): New method.
	(Incremental_inputs::sized_create_incremental_inputs_data): New method.
	* incremental.h: New file.
	* layout.cc (Layout::Layout): Handle new incremental_inputs_.
       (Layout::finalize): Create incremental inputs section in
	incremental builds.
       (Layout::create_incremental_info_sections): New method.
	* layout.h (Layout::incremental_inputs): New method.
       (Layout::create_incremental_info_sections): New method.
       (Layout::incremental_inputs_): New field.
	* main.cc (main): Notify Incremental_input of the command line.

1 files changed, 15 insertions, 0 deletions

diff --git a/gold/layout.h b/gold/layout.h
index 52be1d4..0a9146b 100644
--- a/gold/layout.h
+++ b/gold/layout.h
@@ -39,6 +39,7 @@ namespace gold
 {
 
 class General_options;
+class Incremental_inputs;
 class Input_objects;
 class Mapfile;
 class Symbol_table;
@@ -368,6 +369,12 @@ class Layout
   script_options() const
   { return this->script_options_; }
 
+  // Return the object managing inputs in incremental build. NULL in
+  // non-incremental builds.
+  Incremental_inputs*
+  incremental_inputs()
+  { return this->incremental_inputs_; }
+
   // Compute and write out the build ID if needed.
   void
   write_build_id(Output_file*) const;
@@ -473,6 +480,11 @@ class Layout
   void
   create_build_id();
 
+  // Create .gnu_incremental_inputs and .gnu_incremental_strtab sections needed
+  // for the next run of incremental linking to check what has changed.
+  void
+  create_incremental_info_sections();
+
   // Find the first read-only PT_LOAD segment, creating one if
   // necessary.
   Output_segment*
@@ -717,6 +729,9 @@ class Layout
   bool any_postprocessing_sections_;
   // Whether we have resized the signatures_ hash table.
   bool resized_signatures_;
+  // In incremental build, holds information check the inputs and build the
+  // .gnu_incremental_inputs section.
+  Incremental_inputs* incremental_inputs_;
 };
 
 // This task handles writing out data in output sections which is not