linux-kernel - Re: ptrace: gpf in syscall_trace

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Message-ID: <20140507120022.5704e5d6@gandalf.local.home>
Date:	Wed, 7 May 2014 12:00:22 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Sasha Levin <sasha.levin@...cle.com>
Cc:	Oleg Nesterov <oleg@...hat.com>, roland@...hat.com,
	LKML <linux-kernel@...r.kernel.org>,
	Dave Jones <davej@...hat.com>
Subject: Re: ptrace: gpf in syscall_trace_enter

On Wed, 07 May 2014 11:52:35 -0400
Sasha Levin <sasha.levin@...cle.com> wrote:


> > As the objdump is just of the object files and not the vmlinux, I would
> > need the offset from syscall_trace_leave of the RIP.
> 
>     2803:	41 ff 14 24          	callq  *(%r12)  <=== Here
>     2807:	49 83 c4 10          	add    $0x10,%r12
>     280b:	49 83 3c 24 00       	cmpq   $0x0,(%r12)

Yeah, after I sent the email, I figured it out from the 

  24 08 4c 89 ea 48 89 de <41> ff 14 24 49 83 c4 10 49

Thanks,

-- Steve
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