linux-kernel - Re: [RFC] arm: use built-in byte swap function

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-id: <alpine.LFD.2.03.1302200905300.6419@syhkavp.arg>
Date:	Wed, 20 Feb 2013 09:06:47 -0500 (EST)
From:	Nicolas Pitre <nico@...xnic.net>
To:	"Woodhouse, David" <david.woodhouse@...el.com>
Cc:	Kim Phillips <kim.phillips@...escale.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Borislav Petkov <bp@...en8.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Daniel Santos <daniel.santos@...ox.com>,
	David Rientjes <rientjes@...gle.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Rob Herring <robherring2@...il.com>
Subject: Re: [RFC] arm: use built-in byte swap function

On Wed, 20 Feb 2013, Woodhouse, David wrote:

> On Wed, 2013-02-20 at 08:36 -0500, Nicolas Pitre wrote:
> > You'll have the same issue wrt the above whether or not the source
> > file is C or assembly.
> 
> Hm, true. I was thinking of the code itself (which is
> position-independent anyway), rather than the flags in the object file.
> 
> So just ship a .S file and for the decompressor (if we need it at all)
> rebuild it just the same as we do the *other* libgcc code like ashldi3.S
> etc.

... in which case there is no harm shipping a .c file and trivially 
enforcing -O2, the rest being equal.


Nicolas
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/