2004-03-15 Andrew Cagney <cagney@redhat.com>

2004-03-15  Andrew Cagney  <cagney@redhat.com>

	* Makefile.in (frame-unwind.o): Update dependencies.
	* frame-unwind.c: Include "gdb_obstack.h".
	(frame_unwind_init): Replace "gdbarch" parameter with an "obstack"
	parameter.
	(append_predicate): Delete function.
	(struct frame_unwind_table_entry): New structure.
	(struct frame_unwind_table): Replace "sniffer" with "head" and
	"tail".
	(frame_unwind_append_sniffer): Update.
	(frame_unwind_find_by_frame): Update.
	(_initialize_frame_unwind): Registe frame_unwind_init using
	gdbarch_data_register_pre_init.