From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Cagney <ac131313@cygnus.com>
To: Daniel Berlin <dan@cgsoftware.com>
Cc: gdb@sources.redhat.com
Subject: Re: Integrating DWARF2 CFA info
Date: Thu, 10 May 2001 08:33:00 -0000
Message-id: <3AFA0E37.3020906@cygnus.com>
References: <87ae4p3rkz.fsf@dynamic-addr-83-177.resnet.rochester.edu>
X-SW-Source: 2001-05/msg00214.html

> So i've got the dwarf2 CFA info being used now, when available, to
> find the location of a register.

(What exactly does CFA mean.  I know what you're refering to, just not 
the acronym).


> gdbarch functions aren't stackable, so i can't just implement a
> dwarf2_get_saved_register that uses the dwarf2 cfa info, and if it's
> not available, calls the next lower level get_saved_register function.

I don't think a stack is applicable here.  As you move between frames 
the debug info could change and the get_saved_register() functions 
should adapt accordingly.  Having a stack would imply a specific 
heirichy and that isn't correct in this case.

	Andrew