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kernel: Disable build timestamps by default for reproducibility

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To make Zephyr builds more reproducible, default to disabling build
timestamps. Expand the documentation for CONFIG_BUILD_TIMESTAMP to
explain that enabling it will make the build unreproducible.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Josh Triplett 2018-04-09 14:33:38 -07:00 • committed by Anas Nashif
commit 18cb832646
1 changed files with 4 additions and 2 deletions
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6
kernel/Kconfig
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@ -219,10 +219,12 @@ config BOOT_DELAY
config BUILD_TIMESTAMP
bool
default y
default n
prompt "Build Timestamp"
help
Build timestamp and add it to the boot banner.
Record a timestamp from the build and add it to the boot banner.
Note that this will make the build unreproducible: building
Zephyr twice will result in different binaries.
config INT_LATENCY_BENCHMARK
bool