On Wed, Jan 07, 2015 at 08:58:04AM -0800, Mike Stump wrote:
> On Jan 7, 2015, at 12:23 AM, Jakub Jelinek <[email protected]> wrote:
> > But I really don't like the busy waiting.
>
> We’ve already determined that sched_sleep isn’t intercepted and can be used
> to non-busy wait. Any reason not to use it?
>
> > As tsan is only supported on x86_64-linux
>
> So, I hate hardening the code to be overly non-portable when it doesn’t have
> to be that. There is something enticing to me about the simplicity of
> sched_sleep.
Well, pthread_barrier_wait and dlopen/dlsym are already used by libtsan and
therefore have to be supported on all the architectures that support tsan.
So that method is as portable as libtsan itself.
Jakub
