libSegFault and just in time debugging

[Michael Snyder]

> > > FYI, cygwin already does this, too; it can invoke dumper (to generate
core
> > > dumps) or GDB.
> >
> > By Cygwin does this using a Windows-specific technique, doesn't it?
>
> Sure.  But LD_PRELOAD is a Unix-specific technique.  I don't think
> there's any way around it - when you want to deal with program crashes
> and exceptions, you do something at least a bit platform specific.

Either way, right now we don't have a JIT debugging technique
for Unix.  The question is, is it worth having one?