> > > PS: Hmm, how do you do timewarp for just one userland appliation with
> > > this installed?
> >
> > 1. What on earth for?
>
> Y2K testing was one previous example.
>
> > 2. How do you do it today, and why wouldn't that work?
>
> LD_PRELOAD and providing its still using a lib call it would. I dont see the
> original posters problem
LD_PRELOAD is not reliable: application may do syscall itself and find
out true time. But ptrace works currently and *is* reliable.
Problem is that vsyscalls ay take ability to use ptrace to fool apps away.
Pavel
-- Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt, details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/