2002-04-20 David S. Miller <davem@redhat.com>

2002-04-20  David S. Miller  <davem@redhat.com>

	* sparc-tdep.h: New file.
	* sparc-tdep.c (elf-bfd.h): Include.
	(SPARC_HAS_FPU, FP_REGISTER_BYTES, FP_MAX_REGNUM,
	SPARC_INTREG_SIZE, DUMMY_REG_SAVE_OFFSET, gdbarch_tdep,
	CALL_DUMMY_CALL_OFFSET): Move out to sparc-tdep.h
	(sparc_dump_tdep): New function.
	(_initialize_sparc_tdep): Use gdbarch_register instead of
	register_gdbarch_init which is deprecated.
	(process_note_abi_tag_sections, sparc_abi_handler,
	sparc_abi_handler_list, sparc_gdbarch_register_os_abi): New.
	(sparc_gdbarch_init): Determine elf os ident key based upon
	either the elf header or by using process_note_abi_tag_sections.
	Fix 'gdbarch already exists' test by comparing os_ident as well.
	As the last action, invoke OS abi_handler if installed.