2004-05-07 Randolph Chung <tausq@debian.org>

2004-05-07  Randolph Chung  <tausq@debian.org>

	* hppa-tdep.c (hppa_frame_prev_register_helper): New function to
	do common handling of the pcoqt register.
	(hppa_frame_prev_register, hppa_stub_frame_prev_register): Convert
	to use helper function.
	(hppa_frame_unwind_sniffer): Only use if unwind entry is present.
	(hppa_fallback_frame_cache, hppa_fallback_frame_this_id)
	(hppa_fallback_frame_prev_register, hppa_fallback_frame_unwind): New
	generic fallback unwinder when all else fails.
	(hppa_gdbarch_init): Add fallback sniffer.
	* hppa-tdep.h (hppa_frame_prev_register_helper): Prototype.
	* hppa-linux-tdep.c (hppa_linux_sigtramp_frame_prev_register): Convert
	to use helper function.