* sparc-tdep.c (sparc_extract_struct_value_address): Make it

	* sparc-tdep.c (sparc_extract_struct_value_address): Make it
	work correctly on little-endian hosts.
	(sparc_push_arguments): New function.
	(gdb_print_insn_sparc): New function.
	(_initialize_sparc_tdep): Make gdb_print_insn_sparc the default
	disassembler, so that SPARClite-specific instructions will
	be recognized.
	* sparcl-tdep.c (readchar): Print debugging information.
	(debug_serial_write): New function, a replacement for SERIAL_WRITE
	that prints debugging information.
	* config/sparc/tm-sparc.h (PUSH_ARGUMENTS): Define.
	(sparc_push_arguments): Declare.