Re: [Xen-devel] [PATCH 2/2] hvmloader: remove timestamp from vgabios

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2015-02-03 at 16:17 +0000, Jan Beulich wrote:
> >>> On 03.02.15 at 17:06, <andrew.cooper3@xxxxxxxxxx> wrote:
> > On 03/02/15 15:54, Olaf Hering wrote:
> >> Including a timestamp into the binary makes it impossible to get
> >> reproducible binaries. Remove the timestamp because it carries no
> >> valuable info.
> >>
> >> Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
> >> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> >> Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> >> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
> >> Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
> > 
> > In this case, it would appear that the vgabios_date symbol is completely
> > unused inside the binary.  Good riddance!
> 
> Let's hope there are no tools scanning the BIOS image for a date
> string.

That occurred to me too and I forgot to mention it, it looks vaguely
like this stuff is trying to conform to something or other (e.g.
specific offset and some things which look a bit like signatures),
probably some ancient PC spec?

Ian.


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