linux-kernel - Re: KPROBES: Instrumenting a function's call site

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Message-ID: <863e9df20709260952p3cc99b02n15e411a9b29b9fd4@mail.gmail.com>
Date:	Wed, 26 Sep 2007 22:22:04 +0530
From:	"Abhishek Sagar" <sagar.abhishek@...il.com>
To:	ananth@...ibm.com
Cc:	"Avishay Traeger" <atraeger@...sunysb.edu>, prasanna@...ibm.com,
	anil.s.keshavamurthy@...el.com, davem@...emloft.net,
	linux-kernel@...r.kernel.org
Subject: Re: KPROBES: Instrumenting a function's call site

On 9/26/07, Ananth N Mavinakayanahalli <ananth@...ibm.com> wrote:

> PS: There was a thought of providing a facility to run a handler at
> function entry even when just a kretprobe is used. Maybe we need to
> relook at that; it'd have been useful in this case.

That would be really useful. I was writing a tool to dump some
function profiling info through /proc. This would help save an extra
probe on each function's entry.

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