* layout.cc (Layout::set_segment_offsets): Don't realign text

	* layout.cc (Layout::set_segment_offsets): Don't realign text
	segment if -Ttext was specified.
	* object.cc (Sized_relobj_file::Sized_relobj_file): Store the ELF
	file type.
	* object.h (Sized_relobj_file::e_type): New function.
	(Sized_relobj_file::e_type_): New data member.
	* symtab.cc (Symbol_table::add_from_relobj): Don't add section
	base address for ET_EXEC files.
	* target.cc (Target::do_make_elf_object_implementation): Allow
	ET_EXEC files with --just-symbols option.