Messages in this thread | | | Date | Tue, 4 Aug 2009 16:06:14 +0200 | From | Matthieu CASTET <> | Subject | Re: Tracing thread name |
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Hi,
Mathieu Desnoyers a écrit : > * Matthieu CASTET (matthieu.castet@parrot.com) wrote: >> Hi Mathieu, >> >> Mathieu Desnoyers a écrit : >> Do you know if it is possible to patch my version to add such feature ? >> >> I saw that the name already change in the trace before/after an exec. >> How lltv get the new name ? >> With "fs.exec" tracepoint ? >> In that case I could fake a "fs.exec" tracepoint in set_task_comm. > > A better solution : you add a new event in both lttng and lttv, and > modify state.c to support your new event. The current event to brand > thread is named "userspace.thread_brand". Look for this in LTTV to see > all the sites that need to support the new event (there are very few). > Thanks, but I want to avoid to modify too much ltt (I use an old version for 2.6.27 and my modifications may be useless for upstream).
I added "trace_fs_exec(tsk->comm);" at the end of set_task_comm and now the thread got the correct name :)
Matthieu -- 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/
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