Re: [Libunwind-devel] unwind user process from kernel?

[Arun Sharma]

On Mon, Sep 19, 2011 at 10:07 PM, POKHARAKAR Sandeep
<address@hidden> wrote:
> Hello Arun,
>
>
>> An alternate design for performance counters is to send a signal to
>> user space on counter overflow and do the unwinding in user space. I
>> have some sample code to share if you want to pursue this path.
>
> Could you please share the example stated above.
>

Attached is a patch against google-perftools 1.7. Look at
::RegisterThread() for an example of how you can tell Linux to send
you a signal on perf counter overflow.

 -Arun

perf-events.patch
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