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Date:      Tue, 21 Nov 2006 14:21:59 +0000 (GMT)
From:      Robert Watson <rwatson@FreeBSD.org>
To:        Alexander Leidinger <Alexander@Leidinger.net>
Cc:        trowa-4 <trowa-4@yahoo.com.tw>, Dag-Erling =?utf-8?b?U23DuHJncmF2?= <des@des.no>, Jeremie Le Hen <jeremie@le-hen.org>, freebsd-hackers@FreeBSD.org
Subject:   Re: Process Debugging questions
Message-ID:  <20061121142005.T63599@fledge.watson.org>
In-Reply-To: <20061121150941.wlwmfw8u0w0c444k@webmail.leidinger.net>
References:  <571883.4868.qm@web72011.mail.tp2.yahoo.com> <86irhlfvg2.fsf@dwp.des.no> <20061120221026.GC20405@obiwan.tataz.chchile.org> <86d57hjhwu.fsf@dwp.des.no> <20061121115333.N50450@fledge.watson.org> <20061121150941.wlwmfw8u0w0c444k@webmail.leidinger.net>

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On Tue, 21 Nov 2006, Alexander Leidinger wrote:

> Quoting Robert Watson <rwatson@FreeBSD.org> (from Tue, 21 Nov 2006 11:55:37 
> +0000 (GMT)):
>
>> Anyone who wants to start looking at a new API should make sure they look 
>> at ptrace() and procfs across a range of platforms, and also look at Mach 
>> task ports and what they offer.  One of the things we really can't do well 
>> with ptrace() today is inspect kernel state for a running process -- things 
>> like the VM layout, etc.  We should make sure any next generation system 
>> allows this, because that feature alone is the reason why I sometimes mount 
>> procfs. :-)
>
> Can you please elaborate what features you have in mind which DTrace isn't 
> able to deliver?

/proc/curproc/map

Robert N M Watson
Computer Laboratory
University of Cambridge



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