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Re: [Libreboot] Can libreboot help to escape the Intel AMT/ME nightmare?

From: Denis 'GNUtoo' Carikli
Subject: Re: [Libreboot] Can libreboot help to escape the Intel AMT/ME nightmare?
Date: Sat, 14 Feb 2015 09:32:42 +0100

On Fri, 13 Feb 2015 18:15:24 +0100
Alexander <address@hidden> wrote:

> On 02/09/2015 01:41 PM, Denis 'GNUtoo' Carikli wrote:
> > * For coreboot, we can dump it, but I guess there is no reproducible
> >   build procedure in place. So it's wroth trying to see if that can
> > be done.
> I would be very interested to know more about what makes a build
> process reproducible? My guess is that this would be if the
> components used in the building procedure are specified (so that
> there is no variation occuring i.e. simply because different
> compiler(versions) generate different code i.e. due to optimization
> patters being differnt etc.?)
Well, it's rather the opposite way. What is interesting is what makes a
build *not* reproducible.

Then making it reproducible is just removing the differences in the
build process that makes it not reproducible.

Very common examples:
* Timestamps are used in the build -> remove or fake timestamps
* machine hostname is used in the build
Such things are very useful for developers, when you are
building->testing->changing_code->building in a loop, then it helps a
lot: You can identify the code associated with the running image with
more certainty.
But then it's not a wanted feature for a release.


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