[oe-commits] [openembedded-core] 43/45: image-prelink.bbclass: support binary reproducibility

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rpurdie pushed a commit to branch master-next
in repository openembedded-core.

commit f6598adb498191196799304ecdad5b43ec6c16e8
Author: Juro Bystricky <juro.bystricky at intel.com>
AuthorDate: Wed Aug 9 10:48:24 2017 -0700

    image-prelink.bbclass: support binary reproducibility
    
    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.bystricky at intel.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 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 6fcd699..f3bb68b 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

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