[lttng-dev] lttng view - doubt

[Muni Sekhar]

On Wed, Aug 10, 2016 at 12:41 AM, Jérémie Galarneau
<jeremie.galarneau at efficios.com> wrote:
> On Mon, Aug 8, 2016 at 2:37 AM, Muni Sekhar <munisekharrms at gmail.com> wrote:
>>  [ Please keep me in CC as I'm not subscribed to the list]
>>
>>
>> Hello,
>>
>>
>> Few lines of lttng view trace about workqueue events:
>>
>> [11:07:08.208795325] (+0.000001677) testbox irq_handler_entry: {
>> cpu_id = 1 }, { irq = 16, name = "debug_irq" }
>>
>> [11:07:08.208822703] (+0.000027378) testbox workqueue_queue_work: {
>> cpu_id = 1 }, { work = 0xFFFF8801396D4F18, function =
>> 0xFFFFFFFFC07273B0, req_cpu = 256 }
>>
>> [11:07:08.208824380] (+0.000001677) testbox workqueue_activate_work: {
>> cpu_id = 1 }, { work = 0xFFFF8801396D4F18 }
>>
>> [11:07:08.208826615] (+0.000002235) testbox irq_handler_exit: { cpu_id
>> = 1 }, { irq = 16, ret = 1 }
>>
>> [11:07:08.208831364] (+0.000004749) testbox workqueue_execute_start: {
>> cpu_id = 1 }, { work = 0xFFFF8801396D4F18, function =
>> 0xFFFFFFFFC07273B0 }
>>
>> [11:07:08.208841422] (+0.000010058) testbox workqueue_execute_end: {
>> cpu_id = 1 }, { work = 0xFFFF8801396D4F18 }
>>
>>
>>
>>
>>
>> Can it be possible to print function name instead of ‘function =
>> 0xFFFFFFFFC07273B0’?
>
> Hi Muni,
>
> Unfortunately, you need to perform that look-up manually using
> addr2line or other such tools since Babeltrace (the viewer invoked by
> lttng view) only performs the address/symbol association for user
> space code. Extending that feature would be a great idea though!
Thanks for the reply. I used the /proc/kallsyms to fetch the symbol name.

>
> I'm CC-ing the Trace Compass mailing list; perhaps this is supported
> or already in the works.
>
> Thanks!
> Jérémie
>
>>
>> --
>> Thanks,
>> Sekhar
>> _______________________________________________
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>> lttng-dev at lists.lttng.org
>> https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>
>
>
> --
> Jérémie Galarneau
> EfficiOS Inc.
> http://www.efficios.com



-- 
Thanks,
Sekhar