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| author | Felix Fietkau <nbd@openwrt.org> | 2016-01-31 23:29:16 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2016-01-31 23:29:16 +0000 |
| commit | be6acba4dc5c9013a8f61fb2e9d2dbb976126aa8 (patch) | |
| tree | ae4776018ed3f2a18d6c3c0cf97bae2d14fd995b /include/kernel-build.mk | |
| parent | ad8169546cbcb5b2ed59cef332bb6b1dc5e389ef (diff) | |
| download | master-31e0f0ae-be6acba4dc5c9013a8f61fb2e9d2dbb976126aa8.tar.gz master-31e0f0ae-be6acba4dc5c9013a8f61fb2e9d2dbb976126aa8.tar.bz2 master-31e0f0ae-be6acba4dc5c9013a8f61fb2e9d2dbb976126aa8.zip | |
build system: have tar use $SOURCE_DATE_EPOCH for --mtime
The --mtime argument to 'tar' sets the modification time for all files within
the archive, which determines the timestamp files will get when they are
extracted. In this case, rootfs and other tarballs will get mtimes which
correspond to the last commit timestamp of the build system, as reported by
git/subversion.
This is a step towards reproducible image builds.
Signed-off-by: bryan newbold <bnewbold@robocracy.org>
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48586
Diffstat (limited to 'include/kernel-build.mk')
| -rw-r--r-- | include/kernel-build.mk | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/kernel-build.mk b/include/kernel-build.mk index 8bfd9c89e3..a52c90d9e7 100644 --- a/include/kernel-build.mk +++ b/include/kernel-build.mk @@ -54,7 +54,9 @@ ifdef CONFIG_COLLECT_KERNEL_DEBUG $(STAGING_DIR_ROOT)/lib/modules/$(LINUX_VERSION)/* \ $(KERNEL_BUILD_DIR)/debug/modules/ $(FIND) $(KERNEL_BUILD_DIR)/debug -type f | $(XARGS) $(KERNEL_CROSS)strip --only-keep-debug - $(TAR) c -C $(KERNEL_BUILD_DIR) debug | bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2 + $(TAR) c -C $(KERNEL_BUILD_DIR) debug \ + $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \ + | bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2 endef endif |