linux-kernel - Re: [PATCH] Extend core dump note section to contain file names of mapped files

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Date:	Sun, 1 Apr 2012 11:44:25 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Jan Kratochvil <jan.kratochvil@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Extend core dump note section to contain file names of mapped files

On Sat, Mar 31, 2012 at 08:20:18PM -0700, H. Peter Anvin wrote:
> On 03/31/2012 08:13 PM, Andi Kleen wrote:
> >> I propose to save this information in core dump, as a new note
> >> in note segment.
> > 
> > Seems like a good idea but rather than write complicated code i would just reuse
> > the /proc/*/maps code and dump it in that format?
> > 
> 
> Does /proc/*/maps handle oddball characters in filenames?

It doesn't handle new lines well, but then if someone does that they 
break all programs that parse maps for other reasons (and likely
a lot of other things too) anyways.

Other than that it should be ok: the file name is just the last component
on the line.

-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only.
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