gdb/gdbserver/

gdb/gdbserver/
	* Makefile.in (clean): Remove reg-mips64.c.
	(reg-mips64.c, reg-mips64.o): New rules.
	* configure.srv: Handle mips64.  Include regset support for mips.
	* linux-mips-low.c (union mips_register): New.
	(mips_get_pc, mips_set_pc, mips_reinsert_addr): Use it.
	(mips_breakpoint, mips_breakpoint_at): Use int.
	(mips_collect_register, mips_supply_register)
	(mips_collect_register_32bit, mips_supply_register_32bit)
	(mips_fill_gregset, mips_store_gregset, mips_fill_fpregset)
	(mips_store_fpregset, target_regsets): New.
	* thread-db.c (thread_db_get_tls_address): Use uintptr_t.
gdb/
	* regformats/reg-mips64.dat: New file.