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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 26 Sep 2007 12:09:35 -0400
From:	Avishay Traeger <atraeger@...sunysb.edu>
To:	ananth@...ibm.com
Cc:	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 Wed, 2007-09-26 at 14:33 +0530, Ananth N Mavinakayanahalli wrote:
> What happens when the "call" is singlestepped is that the instruction
> pointer is moved to the call target. That explains the lower latency you
> are seeing. You'll need to do something along the lines I suggested in
> the earlier mail.

Can you please explain what you mean by this more clearly?  I'm not a
kprobes expert yet.  Specifically, using kprobes the way that I did,
what will the resulting code look like?  Also, what do you mean by
"singlestepped"?

Thanks,
Avishay

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/