On Thu, May 02, 2019 at 11:14:12AM -0700, Vagrant Cascadian wrote:
Support for compressed fit-dtb.blob was added in:
commit 95f4bbd581cf ("lib: fdt: Allow LZO and GZIP DT compression in U-Boot")
When building compressed (lzop, gzip) fit-dtb.blob images, the compression tool may embed the time or umask in the image.
Work around this by manually setting the time of the source file using SOURCE_DATE_EPOCH and a hard-coded 0600 umask.
With gzip, this could be accomplished by using -n/--no-name, but lzop has no current workaround:
https://bugs.debian.org/896520
This is essentially the same fix applied to multi-dtb fit SPL images in:
commit 8664ab7debab ("Set time and umask on multi-dtb fit images to ensure reproducibile builds.")
Signed-off-by: Vagrant Cascadian vagrant@reproducible-builds.org
Applied to u-boot/master, thanks!