From 54865c7c1eff7de0dde358f54614c11ea3fc98ac Mon Sep 17 00:00:00 2001 From: Joshua Watt Date: Tue, 12 May 2020 16:19:24 -0500 Subject: 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] (From OE-Core rev: 5c6a472c82a9b3c122fc54d3ee7171508c643a8b) Signed-off-by: Joshua Watt Signed-off-by: Richard Purdie --- meta/classes/kernel.bbclass | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'meta') 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 -- cgit v1.2.3-54-g00ecf