From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [PATCH] check-experimental-syms.sh: prevent symbol
	matches on substrings
Date: Thu, 11 Oct 2018 13:59:58 +0200
Message-ID: <3543645.ZMkEL9mWDR@xps>
References: <20181010142928.11274-1-nhorman@tuxdriver.com>
 <1766289.2YrT9N83Jn@xps>
 <20181010201919.GA19761@hmswarspite.think-freely.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7Bit
Cc: dev@dpdk.org, Ferruh Yigit <ferruh.yigit@intel.com>
To: Neil Horman <nhorman@tuxdriver.com>
Return-path: <dev-bounces@dpdk.org>
Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com
 [66.111.4.27]) by dpdk.org (Postfix) with ESMTP id 87FE61B587
 for <dev@dpdk.org>; Thu, 11 Oct 2018 14:00:00 +0200 (CEST)
In-Reply-To: <20181010201919.GA19761@hmswarspite.think-freely.org>
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

10/10/2018 22:19, Neil Horman:
> On Wed, Oct 10, 2018 at 04:43:14PM +0200, Thomas Monjalon wrote:
> > 10/10/2018 16:29, Neil Horman:
> > > Thomas attempted to submit this:
> > > https://patches.dpdk.org/patch/46311/
> > > 
> > > The other day, because the other patches being submitted with it were
> > > breaking on a false positive from the check-experimental-syms check.
> > > 
> > > The problem was that the experimental symbol check script matched on the
> > > regexs "\.text.*$SYM" and "\.text\.experimental.*$SYM" which allows for
> > > substring matches, and librte_ethdev recently introduced symbols that
> > > are leading substrings of one another (e.g. symbol foo is a substring of
> > > symbol foobar), and so we would match on symbols when we shouldn't
> > > 
> > > Instead of dropping the check, fix this properly by matching
> > > additionally on the end of line so that symbols are an exact match.
> > > 
> > > Confirmed to build properly on Thomas' submitted patch set with the
> > > experimental check patch reverted (so that the checking actually
> > > happens)
> > 
> > That's great Neil!
> > I would like to push it now.
> > May I suggest to remove the details of how I (baldly) reported it?
> > 
> > I suggest this text:
> > "
> > The experimental symbol check script matched on the regexes
> > "\.text.*$SYM" and "\.text\.experimental.*$SYM" which allows for
> > substring matches.
> > If a symbol is leading substring of another one (e.g. symbol foo
> > is a substring of symbol foobar), it would match on symbols
> > when it shouldn't.
> > 
> > It is fixed by matching additionally on the end of line
> > so that symbols are an exact match.
> > "
> Sure, if you want to make that change on commit, I'm ok with it.

Applied, thanks