[wip] frame_unwind_p -> frame unwind sniffer

[Andrew Cagney]

Hello,

The attached is a work-in-progress for sorting out the dwarf2 (and I 
guess other) problem of sometimes screwing up dwarf2 cfi selection.

It replaces the very simple:
	struct unwinder *XXXX_frame_p (CORE_ADDR pc);
method with the sniffer:
	struct unwinder *XXXX_sniffer (struct frame_info *next_frame);
The sniffer (name stollen from existing code) is given the next frame. 
That lets it poke around any which way it chooses to determine if CFI is 
available for this frame.  It happens to call frame_unwind_address_in_block.

comments?

Apart from needing a test run (:-^) my intent is to pull a minimal part 
of this up into the 6.0 branch.

Andrew
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: diffs
URL: <http://sourceware.org/pipermail/gdb-patches/attachments/20030710/61ce1162/attachment.ksh>