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 <jpewhac...@gmail.com>
---
meta/classes/kernel.bbclass | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index a724645466..c124645643 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -691,7 +691,15 @@ 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 [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
+ TAR_ARGS="--sort=name --clamp-mtime
--mtime=@${SOURCE_DATE_EPOCH}"
+ GZIP_ARGS="-9n"
+ else
+ TAR_ARGS=""
+ GZIP_ARGS=""
+ fi
+ tar $TAR_ARGS -cv -C ${D}${root_prefix} lib | gzip $GZIP_ARGS >
$deployDir/modules-${MODULE_TARBALL_NAME}.tgz
+
ln -sf modules-${MODULE_TARBALL_NAME}.tgz
$deployDir/modules-${MODULE_TARBALL_LINK_NAME}.tgz
fi
--
2.17.1
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