uprobes: keep thread blocked after the handler returns

[David J. Wilder]

Octavian Purdila wrote:
> Hi all,
>
> Is there a way to keep the thread blocked after the uprobe handler returns?
> The scenario in which this can be usefull is when we want to do the probing 
> from userspace.
>
> I know it can be done with utrace, but I think is more convenient to do it 
> directly from uprobes.
>
> Thanks,
> tavi
>   
Why not just prevent the handler from returning until you want the 
thread to unblock? The handler could sleep on something trigger from 
user space.