Hi Hemant,
On Tue, 03 Sep 2013 13:06:40 +0530, Hemant Kumar Shaw wrote:This series adds support to perf to list and probe into the SDT markers.First, thanks for your work!
The first patch implements listing of all the SDT markers present in
the ELFs (executables or libraries). The SDT markers are present in the
.note.stapsdt section of the elf. That section can be traversed to list
all the markers. Recognition of markers follows the SystemTap approach.
The second patch will allow perf to probe into these markers. This is
done by writing the marker name and its offset into the
uprobe_events file in the tracing directory.
Then, perf tools can be used to analyze perf.data file.
In fact, I was working on the same topic of support SDT markers. But I
started it by adding support for accessing arguments in uprobes [1].
The patchset is floating around the list for now but I hope it'll get
merged soon. I guess you want to have it too :).
Anyway, it'd great if you add me to CC next time.
Thanks,
Namhyung
[1] http://thread.gmane.org/gmane.linux.kernel/1555044