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

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Message-ID: <20140408162850.GC31460@redhat.com>
Date:	Tue, 8 Apr 2014 18:28:50 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	Jim Keniston <jkenisto@...ux.vnet.ibm.com>,
	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>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 0/6] uprobes/x86: fix the reprel jmp/call handling

On 04/08, Masami Hiramatsu wrote:
>
> (2014/04/07 5:15), Oleg Nesterov wrote:
> >
> > Still I can't understand why displacement.nbytes == 0 in this case...
> > Nevermind.
>
> I guess that you misunderstanding what the displacement means.

You are kidding ;) It is not that I misunderstood ->displacement in
particular, so far I understand almost nothing in this area!

> insn->displacement means
> [... snip ...]

Thanks a lot for your explanation,

> In that case, you should use insn->immediate, instead of insn->moffset1

OK... bu I'm afraid I'll ask a stupid question before I update this
series accordinly.

Thanks.

Oleg.

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