linux-kernel - Re: [RFC PATCH v2 2/6] uprobes/x86: Emulate unconditional rip-relative jmp's

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Message-ID: <20140410134724.GE12228@redhat.com>
Date:	Thu, 10 Apr 2014 15:47:24 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Denys Vlasenko <dvlasenk@...hat.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>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Jim Keniston <jkenisto@...ibm.com>,
	Jonathan Lebon <jlebon@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 2/6] uprobes/x86: Emulate unconditional
	rip-relative jmp's

On 04/10, Denys Vlasenko wrote:
>
> On 04/09/2014 09:44 PM, Oleg Nesterov wrote:
> > uprobes/x86: Emulate unconditional rip-relative jmp's
>
> I propose "Emulate unconditional relative jmp's"

Thanks, will do. And I also agree with your reply to 0/6, will update
the code/subjects.

> 
> > +	union {
> >  #ifdef CONFIG_X86_64
> > -	unsigned long			rip_rela_target_address;
> > +		unsigned long			rip_rela_target_address;
> >  #endif
> > +		struct {
> > +			s32	disp;
>
> In x86-speak, jumps and calls have "offsets", not "displacements"

OK. s/disp/offs/.

Oleg.

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