Hi,

this patch adds gdbarch to register_name callback in rs6000-tdep.c. Also this patch replaces some trivial occurences of current_gdbarch. 
To do this alivec_register_p now has gdbarch as a parameter.

Is this ok to commit?

ChangeLog: 


	* rs6000-tdep.c (rs6000_register_name): Add gdbarch parameter. Replace
	current_gdbarch by gdbarch.
	(ppc_dwarf2_frame_init_reg): Replace current_gdbarch by gdbarch.

	(altivec_register_p): Add gdbarch parameter.
	* ppc-tdep.h (altivec_register_p): Likewise.
	* ppc-linux-nat.c (store_register. fetch_register, supply_vrregset)
	(fetch_ppc_registers, store_altivec_register, store_spe_register): Use
	get_regcache_arch to get at the current architecture by regcache.
	(store_register, fetch_register): Add gdbarch to altivec_register_p
	call.



-- 
Markus Deuling
GNU Toolchain for Linux on Cell BE
deuling@de.ibm.com