linux-kernel - [RFC PATCH 0/6] uprobes/x86: fix the reprel jmp/call handling

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Message-ID: <20140406201524.GA32694@redhat.com>
Date:	Sun, 6 Apr 2014 22:15:24 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Jim Keniston <jkenisto@...ux.vnet.ibm.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Anton Arapov <aarapov@...hat.com>,
	David Long <dave.long@...aro.org>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Jonathan Lebon <jlebon@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	linux-kernel@...r.kernel.org
Subject: [RFC PATCH 0/6] uprobes/x86: fix the reprel jmp/call handling

On 04/04, Jim Keniston wrote:
>
> On Fri, 2014-04-04 at 21:32 +0200, Oleg Nesterov wrote:
> >
> > 	1. Why insn_get_displacement() doesn't work? See "HELP!!!"
> > 	   below.
>
> insn->moffset1.value seems to be what you want.

Works! Thanks a lot.

Still I can't understand why displacement.nbytes == 0 in this case...
Nevermind.

OK. Please see the RFC changes. Obviously not for inclusion yet. And
totally untested, except I verified that the test-case from 4/6 works.

Please comment.

Oleg.

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