* sparc-linux-tdep.c (sparc32_linux_sigframe_init): New function.

	* sparc-linux-tdep.c (sparc32_linux_sigframe_init): New function.
	(sparc32_linux_sigframe, sparc32_linux_rt_sigframe): New tramp_frames.
	(sparc_linux_sigtramp_start, sparc32_linux_sigtramp_start,
	sparc32_linux_rt_sigtramp_start, sparc32_linux_sigtramp_p,
	sparc32_linux_sigtramp_frame_cache,
	sparc32_linux_sigtramp_frame_this_id,
	sparc32_linux_sigtramp_frame_prev_register,
	sparc32_linux_sigtramp_frame_unwind,
	sparc32_linux_sigtramp_frame_sniffer): Delete.
	(sparc32_linux_init_abi): Register new tramp unwinders.  Kill
	register of old sigtramp sniffer.
	* sparc64-linux-tdep.c (sparc64_linux_sigframe_init): New
	function.
	(sparc64_linux_rt_sigframe): New tramp frame.
	(sparc64_linux_sigtramp_start, sparc64_linux_sigtramp_p,
	sparc64_linux_sigtramp_frame_cache,
	sparc64_linux_sigtramp_frame_this_id,
	sparc64_linux_sigtramp_frame_prev_register,
	sparc64_linux_sigtramp_frame_unwind,
	sparc64_linux_sigtramp_frame_sniffer): Delete.
	(sparc64_linux_init_abi): Register new tramp unwinders.  Kill
	register of old sigtramp sniffer.
	Makefile.in (sparc64-linux-tdep.o): Update dependencies.
	(sparc-linux-tdep.o): Likewise.