Conditionally support binary reproducibility in built images.
If BUILD_REPRODUCIBLE_BINARIES = 1 then:
1. Do not randomize library addresses
2. Set/export PRELINK_TIMESTAMP to a reproducible value.
If REPRODUCIBLE_TIMESTAMP_ROOTFS is specified, then the value will
be used. Otherwise the timestamp will be derived from the top git commit.
Signed-off-by: Juro Bystricky <juro.bystri...@intel.com>
---
meta/classes/image-prelink.bbclass | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/meta/classes/image-prelink.bbclass
b/meta/classes/image-prelink.bbclass
index 4157df0..e833d47 100644
--- a/meta/classes/image-prelink.bbclass
+++ b/meta/classes/image-prelink.bbclass
@@ -36,7 +36,17 @@ prelink_image () {
dynamic_loader=$(linuxloader)
# prelink!
- ${STAGING_SBINDIR_NATIVE}/prelink --root ${IMAGE_ROOTFS} -amR -N -c
${sysconfdir}/prelink.conf --dynamic-linker $dynamic_loader
+ if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
+ bbnote " prelink: BUILD_REPRODUCIBLE_BINARIES..."
+ if [ "$REPRODUCIBLE_TIMESTAMP_ROOTFS" = "" ]; then
+ export PRELINK_TIMESTAMP=`git log -1 --pretty=%ct `
+ else
+ export PRELINK_TIMESTAMP=$REPRODUCIBLE_TIMESTAMP_ROOTFS
+ fi
+ ${STAGING_SBINDIR_NATIVE}/prelink --root ${IMAGE_ROOTFS} -am -N
-c ${sysconfdir}/prelink.conf --dynamic-linker $dynamic_loader
+ else
+ ${STAGING_SBINDIR_NATIVE}/prelink --root ${IMAGE_ROOTFS} -amR
-N -c ${sysconfdir}/prelink.conf --dynamic-linker $dynamic_loader
+ fi
# Remove the prelink.conf if we had to add it.
if [ "$dummy_prelink_conf" = "true" ]; then
--
2.7.4
--
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