new warning with 2.19

[Alan Modra]

On Wed, Dec 03, 2008 at 08:20:17AM -0600, Joel Sherrill wrote:
> warning: cannot find entry symbol _start; defaulting to 00000000
[snip]
> Is there something wrong with the check that generates
> this warning? 

I doubt it.

> I have tried to produce a cutdown but so far have not
> had any luck. 

Sounds like memory corruption.  Run ld under gdb with a hardware
watchpoint on entry_symbol.name.

-- 
Alan Modra
Australia Development Lab, IBM