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authorJoshua Watt <JPEWhacker@gmail.com>2020-05-12 16:19:24 -0500
committerRichard Purdie <richard.purdie@linuxfoundation.org>2020-05-14 14:13:50 +0100
commit5c6a472c82a9b3c122fc54d3ee7171508c643a8b (patch)
tree4b6f46c09511df658fad35459ee9fe164020d3f1
parent09fa9dabe17f69db71f3773f8808af745fb8ed4a (diff)
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classes/kernel: Generate reproducible kernel module tarball
If reproducible binaries are requested, generate the kernel modules tarball in a reproducible way. Namely, sort the tarball contents, clamp the mtime to the source date epoch, compress the archive with a consistent compression level (9), and don't include the name and timestamp in the compressed file. [YOCTO #12719] Signed-off-by: Joshua Watt <JPEWhacker@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/classes/kernel.bbclass8
1 files changed, 7 insertions, 1 deletions
diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index a724645466..6846d6040d 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -691,7 +691,13 @@ kernel_do_deploy() {
if [ ${MODULE_TARBALL_DEPLOY} = "1" ] && (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
mkdir -p ${D}${root_prefix}/lib
- tar -cvzf $deployDir/modules-${MODULE_TARBALL_NAME}.tgz -C ${D}${root_prefix} lib
+ if [ -n "${SOURCE_DATE_EPOCH}" ]; then
+ TAR_ARGS="--sort=name --clamp-mtime --mtime=@${SOURCE_DATE_EPOCH}"
+ else
+ TAR_ARGS=""
+ fi
+ tar $TAR_ARGS -cv -C ${D}${root_prefix} lib | gzip -9n > $deployDir/modules-${MODULE_TARBALL_NAME}.tgz
+
ln -sf modules-${MODULE_TARBALL_NAME}.tgz $deployDir/modules-${MODULE_TARBALL_LINK_NAME}.tgz
fi