Abort backtrace when consecutive zero PCs?

[Daniel Jacobowitz]

On Wed, Sep 15, 2004 at 01:34:21PM -0400, Andrew Cagney wrote:
> Hello,
> 
> One backtrace infinite loop case I've noticed (especially on ia64) is 
> where successive frames all have a zero PC.
> 
> While we definitly need to allow a backtrace through a single zero PC 
> (for a NULL pointer call - signull.exp) should we make GDB abort when 
> two or more consecutive frames have a zero PC?
> 
> (mumble something about a runtime option)
> 
> thoughts?

I still think that you want to reject zero PC followed by a normal
(non-signal/dummy) frame, for exactly this reason...

-- 
Daniel Jacobowitz