linux-kernel - Re: [RFC PATCH 0/2] Perf support to SDT markers

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Message-ID: <87ppsonohv.fsf@tassilo.jf.intel.com>
Date:	Wed, 04 Sep 2013 16:41:48 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Hemant Kumar Shaw <hkshaw@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, srikar@...ux.vnet.ibm.com,
	peterz@...radead.org, oleg@...hat.com, mingo@...hat.com,
	anton@...hat.com, systemtap@...rceware.org,
	masami.hiramatsu.pt@...achi.com
Subject: Re: [RFC PATCH 0/2] Perf support to SDT markers

Hemant Kumar Shaw <hkshaw@...ux.vnet.ibm.com> writes:

> This series adds support to perf to list and probe into the SDT markers.
> 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.

Nice feature

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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