linux-kernel - Re: linux-next: add utrace tree

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Message-ID: <20100126135849.GC1764@ucw.cz>
Date:	Tue, 26 Jan 2010 14:58:50 +0100
From:	Pavel Machek <pavel@....cz>
To:	Valdis.Kletnieks@...edu
Cc:	ananth@...ibm.com, Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Peter Zijlstra <peterz@...radead.org>,
	Fr??d??ric Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	linux-next@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>,
	utrace-devel@...hat.com, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: linux-next: add utrace tree

On Fri 2010-01-22 08:43:18, Valdis.Kletnieks@...edu wrote:
> On Fri, 22 Jan 2010 10:51:39 +0530, Ananth N Mavinakayanahalli said:
> 
> > FWIW, Oleg's implementation of ptrace over utrace is 100% compatible
> > with legacy ptrace; gdb testsuite indicates that
> > (http://lkml.org/lkml/2009/12/21/98).
> 
> No, that only proves it's compatible enough for gdb to not care. The problem
> is all those *other* packages that abuse ptrace in totally crackhead ways.
> 
> (No, I can't name them - but ptrace is the sort of interface that almost
> encourages its use for things somewhere between crackhead and mad-scientist,
> so they're almost certainly out there.. WAY out there.. :)

strace, subterfugue, ltrace, ...? Plus various homegrown sandboxing tools...
									Pavel


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