Re: [PATCH 15/17] tracing/uprobes: Add support for full argumentaccess methods

From: Steven Rostedt
Date: Thu Jan 02 2014 - 16:02:25 EST


On Thu, 2 Jan 2014 15:58:27 -0500
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> On Mon, 16 Dec 2013 13:32:14 +0900
> Namhyung Kim <namhyung@xxxxxxxxxx> wrote:
>
> > From: Namhyung Kim <namhyung.kim@xxxxxxx>
> >
> > Enable to fetch other types of argument for the uprobes. IOW, we can
> > access stack, memory, deref, bitfield and retval from uprobes now.
> >
> > The format for the argument types are same as kprobes (but @SYMBOL
> > type is not supported for uprobes), i.e:
> >
> > @ADDR : Fetch memory at ADDR
> > $stackN : Fetch Nth entry of stack (N >= 0)
> > $stack : Fetch stack address
> > $retval : Fetch return value
> > +|-offs(FETCHARG) : Fetch memory at FETCHARG +|- offs address
> >
> > Note that the retval only can be used with uretprobes.
> >
> > Original-patch-by: Hyeoncheol Lee <cheol.lee@xxxxxxx>
>
> Where was the original patch posted? And can we get Hyeoncheol's SOB for
> this?
>

Was this the other part of patch 11? Still should have Hyeoncheol's
signed-off-by. If you already had it on the original (before the split)
then we can add it here too, as he already signed off on the code that
this was based on.

-- Steve
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