2007-07-09 Roland McGrath <roland@redhat.com>

2007-07-09  Roland McGrath  <roland@redhat.com>

	* elf-bfd.h (struct elf_obj_tdata): Add members
	emit_note_gnu_build_id and note_gnu_build_id_sec.
	* elf.c (_bfd_id_note_section_size): New global function.
	(read_hex, _bfd_elf_write_build_id_section): New static functions.
	(_bfd_elf_write_object_contents): Call _bfd_elf_write_build_id_section
	if emit_note_gnu_build_id is set.
	* Makefile.am (elf.lo): Update dependencies.
	* elf-bfd.h (struct elf_size_info): Add checksum_contents hook.
	(bfd_elf32_checksum_contents, bfd_elf64_checksum_contents): Declare.
	* elfcode.h (elf_checksum_contents): New macro and function.
	(NAME(_bfd_elf,size_info)): Initialize checksum_contents hook.