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From: matwey.kornilov@gmail.com (Matwey V. Kornilov)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Need help with tracepoints
Date: Sat, 29 Apr 2017 15:50:46 +0300	[thread overview]
Message-ID: <oe2270$5gp$1@blaine.gmane.org> (raw)
In-Reply-To: <oe1r9b$n26$1@blaine.gmane.org>

29.04.2017 13:52, Matwey V. Kornilov ?????:
> Hello,
> 
> I am following trace/tracepoints.txt guide to add some tracepoints to
> already existing kernel module.
> 
> I've created include/trace/events/mysubsys.h
> and added
> 
> #include <trace/events/mysubsys.h>
> 
> #define CREATE_TRACE_POINTS
> DEFINE_TRACE(mysubsys_event1);
> EXPORT_TRACEPOINT_SYMBOL_GPL(mysubsys_event1);
> 
> to the module sources. There are symbols *_mysubsys_event1 in module ko
> file.
> 
> The issue is that I don't see my events in /sys/kernel/debug/tracing/events
> Not even ./mysubsys path here.
> 

Ok. I found. I had to use TRACE_EVENT() macro to use
/sys/kernel/debug/tracing/events interface

      parent reply	other threads:[~2017-04-29 12:50 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-29 10:52 Need help with tracepoints Matwey V. Kornilov
2017-04-29 11:46 ` Peter Senna Tschudin
2017-04-29 11:47   ` Peter Senna Tschudin
2017-04-29 12:50 ` Matwey V. Kornilov [this message]

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