[gold patch] Incremental 14/18: Add soname and as_needed

[Ian Lance Taylor]

Cary Coutant <ccoutant@google.com> writes:

> 	* dynobj.h (Dynobj::do_dynobj): New function.
> 	* incremental-dump.cc (dump_incremental_inputs): Print as_needed
> 	flag and soname for shared objects.
> 	* incremental.cc (Incremental_inputs::report_object): Make
> 	either Incremental_object_entry or Incremental_dynobj_entry; add
> 	soname to string table.
> 	(Incremental_inputs::report_input_section): Add assertion.
> 	(Output_section_incremental_inputs::set_final_data_size): Adjust
> 	type of input file entry for shared libraries; adjust size of
> 	shared library info entry.
> 	(Output_section_incremental_inputs::write_input_files): Write
> 	as_needed flag for shared libraries.
> 	(Output_section_incremental_inputs::write_info_blocks): Adjust type
> 	of input file entry for shared libraries; write soname.
> 	(Sized_incr_dynobj::Sized_incr_dynobj): Read as_needed flag and
> 	soname from incremental info.
> 	* incremental.h (enum Incremental_input_flags): Add
> 	INCREMENTAL_INPUT_AS_NEEDED.
> 	(Incremental_input_entry::Incremental_input_entry): Initialize new
> 	data member.
> 	(Incremental_input_entry::set_as_needed): New function.
> 	(Incremental_input_entry::as_needed): New function.
> 	(Incremental_input_entry::do_dynobj_entry): New function.
> 	(Incremental_input_entry::as_needed_): New data member.
> 	(Incremental_object_entry::Incremental_object_entry): Don't check
> 	for shared library.
> 	(Incremental_object_entry::do_type): Likewise.
> 	(class Incremental_dynobj_entry): New class.
> 	(Incremental_input_entry_reader::as_needed): New function.
> 	(Incremental_input_entry_reader::get_soname): New function.
> 	(Incremental_input_entry_reader::get_global_symbol_count): Rewrite.
> 	(Incremental_input_entry_reader::get_output_symbol_index): Adjust
> 	size of shared library info entry.
> 	* layout.cc (Layout::finish_dynamic_section): Don't test for
> 	incremental link when adding DT_NEEDED entries.
> 	* object.h (Object::Object): Initialize new data member.
> 	(Object::dynobj): New function.
> 	(Object::set_as_needed): New function.
> 	(Object::as_needed): New function.
> 	(Object::do_dynobj): New function.
> 	(Object::as_needed_): New data member.
> 	* testsuite/object_unittest.cc (Object_test): Set default options.

This is OK.

Thanks.

Ian