Reconstructing corrupt stacks/patching frame pointers

[Michael Snyder]

Daniel Jacobowitz wrote:
> On Wed, Dec 10, 2008 at 03:16:32PM -0800, Michael Snyder wrote:
>> I presume this is a core dump from a Free BSD system.
>>
>> Unfortunately, for the most part, the folks here in the gdb
>> maintainer group don't play a very active role in maintaining
>> the bits for gdb on BSD.  Somebody may correct me if I'm wrong...
>>
>> You may need to approach the Free BSD community for this.
> 
> Well, Mark Kettenis does.  But the problem is general to all core
> files; I've seen requests to change the $sp in Linux corefiles too.

It might be possible with a normal elf core file.
I know there is a mode that allows gdb to treat a
corefile as read-write.  Lemme see... here it is:
"help set write".

Don't know whether it works for registers...

Don't know whether it works with fbsd kgdb...