Re: [PATCH v4 2/4] Add the latent_entropy gcc plugin

Kees Cook
2016-06-21T16:13:55Z

On Tue, Jun 21, 2016 at 5:58 AM, Christoph Hellwig <hch@infradead.org> wrote:
> On Mon, Jun 20, 2016 at 08:41:19PM +0200, Emese Revfy wrote:
>> --- /dev/null
>> +++ b/scripts/gcc-plugins/latent_entropy_plugin.c
>> @@ -0,0 +1,639 @@
>> +/*
>> + * Copyright 2012-2016 by the PaX Team <pageexec@freemail.hu>
>> + * Copyright 2016 by Emese Revfy <re.emese@gmail.com>
>> + * Licensed under the GPL v2
>> + *
>> + * Note: the choice of the license means that the compilation process is
>> + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
>> + * but for the kernel it doesn't matter since it doesn't link against
>> + * any of the gcc libraries
>
> I remember we used to have architectures that actually linked against
> libgcc. Isn't that the case anymore?

There are a few, but they don't (and won't) select HAVE_GCC_PLUGINS.

-Kees

--
Kees Cook
Chrome OS & Brillo Security