12719 2018-04-27 13:32:53 +0000 Support reproducible build for kernel modules tarball 2026-10-01 15:48:11 +0000 1 1 7 Build System, Metadata & Runtime OE-Core core 2.5 x86 Multiple NEW Medium enhancement 6.2 1 juro.bystricky richard.purdie bluelightning meta.mr.watcher meta.watcher randy.macleod richard.purdie stephano --- --- Don't know oldest_to_newest 80447 0 juro.bystricky 2018-04-27 13:32:53 +0000 The goal of this enhancement is to build reproducible modules-qemux86.tgz tarballs for: $ MACHINE=qemux86 bitbake core-image-minimal The resulting tarballs of this build are placed in the folder <builddir>/tmp/deploy/images/qemux86 Repeating the build in a different folder will place the tarballs in: <builddir-different>/tmp/deploy/images/qemux86 The build is deemed reproducible if the tarballs are binary identical. This is rather simple, replacing the line in kernel.bbclass: tar -cvzf ${DEPLOYDIR}/${MODULE_TARBALL_BASE_NAME} -C ${D} lib with: sde=$(get_sde) tar -I "gzip -9n" --sort=name --clamp-mtime --mtime=@$sde -cvf ${DEPLOYDIR}/${MODULE_TARBALL_BASE_NAME} -C ${D} lib But we should wait until we resolve: https://bugzilla.yoctoproject.org/show_bug.cgi?id=12707 (Otherwise we would need to do some run-time checks for supported "tar" command line arguments) 87171 1 richard.purdie 2020-05-07 08:08:56 +0000 I believe we now have the minimum tar version needed at least. 96800 2 randy.macleod 2023-10-24 14:24:20 +0000 Bulk move from 4.99 or 0.00 to 5.99