[Buildroot] [PATCH 05/34] reproducibility/linux: override build timestamp
Gilles Chanteperdrix
gilles.chanteperdrix at xenomai.org
Sat Apr 30 07:49:01 UTC 2016
with SOURCE_DATE_EPOCH
---
linux/linux.mk | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/linux/linux.mk b/linux/linux.mk
index 9507837..d882702 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -74,6 +74,14 @@ LINUX_MAKE_ENV = \
$(TARGET_MAKE_ENV) \
BR_BINARIES_DIR=$(BINARIES_DIR)
+ifeq ($(BR2_REPRODUCIBLE),y)
+LINUX_MAKE_ENV += \
+ KBUILD_BUILD_VERSION=1 \
+ KBUILD_BUILD_USER=buildroot \
+ KBUILD_BUILD_HOST=buildroot \
+ KBUILD_BUILD_TIMESTAMP="$(shell TZ=UTC LANG=C LC_ALL=C date -d @$(SOURCE_DATE_EPOCH))"
+endif
+
# Get the real Linux version, which tells us where kernel modules are
# going to be installed in the target filesystem.
LINUX_VERSION_PROBED = `$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelrelease 2>/dev/null`
--
2.7.4
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