pa.c (pa_output_function_prologue): Don't accumulate the total number of code bytes...

pa.c (pa_output_function_prologue): Don't accumulate the total number of code bytes when using TARGET_64BIT...

	* pa.c (pa_output_function_prologue): Don't accumulate the total
	number of code bytes when using TARGET_64BIT, or gas, SOM and not
	the portable runtime.
	(output_deferred_plabels): Handle 64bit plabels.
	(output_cbranch): Use $PIC_pcrel$0 for pc relative relocations when
	generating pic code using the GAS assembler for object formats that
	are not SOM (ie., ELF32 and ELF64).
	(output_millicode_call): Check attribute type if attribute length is 28.
	Likewise use $PIC_pcrel$0.  Only call get_attr_length and
	dbr_sequence_length once.
	(output_call): Likewise use $PIC_pcrel$0, and call get_attr_length and
	dbr_sequence_length once.
	* pa.h (TARGET_SOM): Define if not defined.
	* pa.md (pattern to load address of label): Likewise use $PIC_pcrel$0
	with GAS and not SOM.
	(jump, call_internal_reg, call_value_internal_reg): Likewise.
	* som.h (OBJ_SOM): Rename to TARGET_SOM.  Undefine before defining.

From-SVN: r52196