[U-Boot] [Reproducible-builds] [PATCH] build: create time and date independent binary

[Vagrant Cascadian]

On 2015-07-19, Holger Levsen wrote:
>> > All this said, if you send me patches, I will probably deploy them as I'm
>> > very curious and more reproducibility efforts are good :-) We can can
>> > always decide to remove or move them later.
>> 
>> I wish to make all contributions upstream. What would really help at
>> first would be to have all targets built regularly to see where work is
>> needed. This is where I think the Debian infrastructure could help, in a
>> similar way as what was started for Coreboot.

FWIW, I was planning on including this patch to u-boot in the next
upload to Debian:

  https://anonscm.debian.org/cgit/collab-maint/u-boot.git/tree/debian/patches/use-date-from-debian-changelog.patch?h=experimental-2015.07

I *think* that actually makes u-boot build reproducibly with Debian's
reproducible builds toolchain when SOURCE_DATE_EPOCH is set, but I
haven't tested it fully. I might have missed some other sources of
non-determinism...


Hoping to get some armhf buildd nodes up an running soonish... although
it should also be buildable with the cross-toolchains, if the
reproducible buildds coulld be made to support that.


live well,
  vagrant
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