* incremental-dump.cc (dump_incremental_inputs): Print COMDAT groups.

	* incremental.cc (Incremental_inputs::report_input_section): Fix
	comment, indentation.
	(Incremental_inputs::report_comdat_group): New function.
	(Output_section_incremental_inputs::set_final_data_size): Adjust size
	of data for incremental input file entry.
	(Output_section_incremental_inputs::write_info_blocks): Write COMDAT
	group count, COMDAT group signatures.
	(Sized_incr_relobj::do_layout): Record kept COMDAT group info from
	an unchanged input file.
	* incremental.h (Incremental_object_entry::Incremental_object_entry):
	Initialize new data member.
	(Incremental_object_entry::add_comdat_group): New function.
	(Incremental_object_entry::get_comdat_group_count): New function.
	(Incremental_object_entry::get_comdat_signature_key): New function.
	(Incremental_object_entry::groups_): New data member.
	(Incremental_inputs::report_comdat_group): New function.
	(Incremental_input_entry_reader::get_symbol_offset): Adjust size of
	data for incremental input file entry.
	(Incremental_input_entry_reader::get_comdat_group_count): New function.
	(Incremental_input_entry_reader::get_input_section): Adjust size of
	data for incremental input file entry.
	(Incremental_input_entry_reader::get_global_symbol_reader): Likewise.
	(Incremental_input_entry_reader::get_comdat_group_signature): New
	function.
	* object.cc (Sized_relobj::include_section_group): Report kept
	COMDAT groups for incremental links.

1 files changed, 7 insertions, 0 deletions

diff --git a/gold/object.cc b/gold/object.cc
index 1160f0c..b14c85d 100644
--- a/gold/object.cc
+++ b/gold/object.cc
@@ -825,6 +825,13 @@ Sized_relobj_file<size, big_endian>::include_section_group(
       is_comdat = true;
     }
 
+  if (is_comdat && include_group)
+    {
+      Incremental_inputs* incremental_inputs = layout->incremental_inputs();
+      if (incremental_inputs != NULL)
+	incremental_inputs->report_comdat_group(this, signature.c_str());
+    }
+
   size_t count = shdr.get_sh_size() / sizeof(elfcpp::Elf_Word);
 
   std::vector<unsigned int> shndxes;