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Message-ID: <20150806121818.GA17399@openwall.com>
Date: Thu, 6 Aug 2015 15:18:18 +0300
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: JtR on ARM (NEON)
On Mon, Aug 03, 2015 at 05:34:34PM +0800, Lei Zhang wrote:
> The links you posted discussed scalar load/stores. As we are not writing ARM assemblies in JtR, the compiler should be able to take care of scalar variables' alignment for us.
For variables, yes. But if we have pointer arithmetic and typecasts, it
is technically possible for our C source code to invoke unaligned accesses.
This is something we should avoid, except when ARCH_ALLOWS_UNALIGNED,
which we shouldn't enable for ARM.
Alexander
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