linux-kernel - Re: Smatch v1.56 released

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Message-ID: <4F53BDCA.3030003@gmail.com>
Date:	Sun, 04 Mar 2012 20:08:58 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Joe Perches <joe@...ches.com>
CC:	Dan Carpenter <dan.carpenter@...cle.com>,
	linux-kernel@...r.kernel.org, smatch@...r.kernel.org
Subject: Re: Smatch v1.56 released

On 03/04/2012 07:38 PM, Joe Perches wrote:
> On Sun, 2012-03-04 at 21:04 +0300, Dan Carpenter wrote:
>> Smatch still produces a lot of false positives.  Also as bugs get
>> fixed in the kernel, the false positive to real bug ratio gets
>> worse and worse.  But it does find real bugs as well.
> 
> Perhaps a database of known false positives and a mechanism
> to use it to see only new instances could be created.

Yes, this is actually what xgcc has been doing. See [1] to see how to do
it more-or-less reliably.

[1] A system and language for building system-specific, static analyses,
Hallem, S. and Chelf, B. and Xie, Y. and Engler, D.

regards,
-- 
js
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