linux-kernel - Re: [PATCH] Move kprobes examples to samples/ (resend)

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Message-ID: <20071113125326.GA16455@Krystal>
Date:	Tue, 13 Nov 2007 07:53:26 -0500
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	David Miller <davem@...emloft.net>
Cc:	akpm@...ux-foundation.org, ananth@...ibm.com,
	linux-kernel@...r.kernel.org, hch@...radead.org,
	randy.dunlap@...cle.com, anil.s.keshavamurthy@...el.com,
	prasanna@...ibm.com
Subject: Re: [PATCH] Move kprobes examples to samples/ (resend)

* David Miller (davem@...emloft.net) wrote:
> From: Andrew Morton <akpm@...ux-foundation.org>
> Date: Tue, 13 Nov 2007 04:00:45 -0800
> 
> > On Sun, 21 Oct 2007 18:09:19 +0530 Ananth N Mavinakayanahalli <ananth@...ibm.com> wrote:
> > 
> > > Move kprobes examples from Documentation/kprobes.txt to under samples/.
> > > Patch originally by Randy Dunlap.
> > > 
> > > In addition, I have
> > > 
> > > o Updated the patch to apply on 2.6.23-mm1
> > > o Modified examples code to build on multiple architectures. Currently,
> > >   the examples code works for x86_64, x86_32 and powerpc
> > > o Cleaned up unneeded #includes
> > 
> > Could you please take a look at what's needed to get this working on sparc64?
> > 
> > samples/kprobes/kretprobe_example.c: In function `ret_handler':
> > samples/kprobes/kretprobe_example.c:19: error: implicit declaration of function `regs_return_value'
> 
> kretprobes support most likely, it's on my todo list to implement
> but it will take a while since I'm busy fixing networking bugs
> but I can stop doing that if you like.
> 
> :-)

I wonder if compiling this example makes sense when
ARCH_SUPPORTS_KRETPROBES is not defined ? We could just use a
obj-$ARCH_SUPPORTS_KRETPROBES to compile the example conditionally.

Mathieu


-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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