Backport the patches required to make the hardening build flags work with
kexec-tools and makedumpfile, and enabld hardening flags in spec file.
This will make the pacakge pass all warnings for kexec and makedumpfile
reported by annocheck.
Didn't find any issue with basic tests with kexec and makedumpfile.
Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
