v2.0.21
configure.ac, arch/x86_64: handle x32 as subarch of x86_64 and don't specify -mcmodel=large there
purgatory: Add printf type checking
purgatory: Use standalond CFLAGS
kexec jump support for kexec-tools
kexec: Add --no-checks option
purgatory: Fix memcmp for src address increment