ChangeLog entry:
2016-12-07  Ivo Raisr  <ivo.raisr@oracle.com>

	PR tdep/20936
	Provide and use sparc32 and sparc64 target description XML files.
	* sparc32-cp0.xml, sparc32-cpu.xml, sparc32-fpu.xml: New files for
	sparc 32-bit.
	* sparc64-cp0.xml, sparc64-cpu.xml, sparc64-fpu.xml: New files
	for sparc 64-bit.
	* sparc32-solaris.xml, sparc64-solaris.xml: New files for sparc32
	and sparc64 on Solaris.
	* sparc-solaris.c, sparc64-solaris.c: Generated.
	* sparc-tdep.h: Deal with sparc32 and sparc64 differences
	in target descriptions. Separate real and pseudo registers.
	* sparc-tdep.c: Validate and use registers of the target description.
	Pseudo registers are numbered after all real registers from the target
	description; deal with it.
	* sparc64-tdep.h: Separate real and pseudo registers.
	* sparc64-tdep.c: Pseudo registers are numbered after all real
	registers from the target description; deal with it.
	* gdb.texinfo: New node "Sparc Features".