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Message-ID: <20151005225331.GA4486@openwall.com>
Date: Tue, 6 Oct 2015 01:53:32 +0300
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: Agnieszka's GSoC formats
magnum, Agnieszka -
On Tue, Oct 06, 2015 at 12:42:53AM +0200, Agnieszka Bielec wrote:
> it segfaults when I'm casting an int array to long array
> but also when I'm creating array as long, next I'm casting it to int
> and again I'm casting to long
All of these sound like strict aliasing violations, so would be invalid
in C.
We're talking OpenCL, right? Since there's the -cl-strict-aliasing
option in OpenCL 1.0 spec, it sounds like strict aliasing isn't assumed
in OpenCL by default. However, this option is gone in 1.1+, so maybe
strict aliasing is assumed by default in 1.1+? We need to figure this
out, if we haven't already.
Related:
https://github.com/magnumripper/JohnTheRipper/issues/352
Alexander
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