* config/sparc/sol2-unwind.h (sparc64_frob_update_context): Do it for
	signal frames as well.
	(MD_FALLBACK_FRAME_STATE_FOR): Do minor cleanups throughout and add the
	STACK_BIAS to the CFA offset.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@199191 138bc75d-0d04-0410-961f-82ee72b054a4