gdb: sparc: split real and pseudo registers.

gdb: sparc: split real and pseudo registers.

gdb/ChangeLog:

2017-01-16  Ivo Raisr  <ivo.raisr@oracle.com>

	Split real and pseudo registers.
	* sparc-tdep.h (SPARC_CORE_REGISTERS): New macro.
	(sparc32_pseudo_regnum): New enum.
	* sparc64-tdep.h (sparc64_pseudo_regnum): New enum.
	* sparc-tdep.c (SPARC32_FPU_REGISTERS): New macro.
	(SPARC32_CP0_REGISTERS): New macro.
	(sparc32_pseudo_register_name): New function.
	(sparc32_register_name): Use sparc32_pseudo_register_name.
	(sparc32_pseudo_register_type): New function.
	(sparc32_register_type): Use sparc32_pseudo_register_type.
	(sparc32_pseudo_register_read, sparc32_pseudo_register_write): Handle
	pseudo register numbers.
	* sparc64-tdep.c SPARC64_FPU_REGISTERS): New macro.
	(SPARC64_CP0_REGISTERS): New macro.
	(sparc64_pseudo_register_name): New function.
	(sparc64_register_name): Use sparc64_pseudo_register_name.
	(sparc64_pseudo_register_type): New function.
	(sparc64_register_type): Use sparc64_pseudo_register_type.
	(sparc64_pseudo_register_read, sparc64_pseudo_register_write): Handle
	pseudo register numbers.
	(sparc64_store_floating_fields, sparc64_extract_floating_fields,
	sparc64_store_arguments): Handle pseudo register numbers.