Atharva Lele 5014abb34a fs/tar: explicitly set extended header values to ensure binary reproducibility ... Since we use --xattrs-include='*' to include all extended attributes, tar creates a PAX formatted archive. The archive metadata captures atime and ctime of files. To fix this, GNU recommends that we pass this added argument to tar to create binary reproducible packages. Setting of mtime is handled in fs/common.mk using touch on all files. Diffoscope output pre-change: https://gitlab.com/snippets/1871111 Diffoscope output after change is blank i.e. binary reproducibile rootfs is created. GNU Recommendation: https://www.gnu.org/software/tar/manual/tar.html#SEC147 Signed-off-by: Atharva Lele <itsatharva@gmail.com> Reviewed-by: Matt Weber <matthew.weber@rockwellcollins.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com> (cherry picked from commit 9c449f9dd8) Signed-off-by: Peter Korsgaard <peter@korsgaard.com>		2019-07-31 23:47:37 +02:00
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Config.in
tar.mk	fs/tar: explicitly set extended header values to ensure binary reproducibility	2019-07-31 23:47:37 +02:00