mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-31 02:51:26 +00:00
3d9c605257
When sighing prod images it is important to be able to reproduce them
bit for bit. Setting the manifest timestamp filed to a non-zero value
makes sure that this value is used in the header as opposed to the
current time.
Setting the value to 1 guarantees that any dev image with the same
epoch/major/minor field values will be preferred, as it would have a
later timestamp.
BRANCH=none
BUG=none
TEST=verified that two images built with this manifest are exactly the
same (they used to differ before this change).
verified that the header timestamp field is indeed set to 1:
$ od -Ax -t x1 -vd d2/cr50.bin.prod | grep -A1 004350
$ 004350 ff ff ff ff ff ff ff ff ff ff ff ff 00 00 00 00
$ 004360 00 00 00 00 11 00 00 00 01 00 00 00 00 00 00 00
location 0x435c is the epoch_ field offset, 32 bit
epoch/major/minor is set to 0/0/17 and 64 bit timestamp is set to
1.
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Change-Id: I6ea0e664fa3eab7917ca472d715824feec49eb51
Reviewed-on: https://chromium-review.googlesource.com/452956
Commit-Ready: Vadim Bendebury <vbendeb@chromium.org>
Tested-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-by: Marius Schilder <mschilder@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>