A couple of thoughts/queries.

[Bill Baxter]

Cristian Vlasceanu wrote:

> An outline of how ZeroBUGS handles stack unwinding: if there is DWARF 
> information present, then look for frame-unwinding information. 
> Otherwise, assume the System V ABI for the i386 and PowerPC and Itanium 
> ABI for X86_64.
> 
> Again, do not blame the debugger for what the compiler does not produce.

I hope you have filed bugs in bugzilla about which information the 
compiler is not generating.

--bb