s390/purgatory: do not build purgatory with kcov, kasan and friends
the purgatory must not rely on functions from the "old" kernel, so we must disable kasan and friends. We also need to have a separate copy of string.c as the default does not build memcmp with KASAN. Reported-by:kbuild test robot <lkp@intel.com> Signed-off-by:
Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by:
Vasily Gorbik <gor@linux.ibm.com> Signed-off-by:
Vasily Gorbik <gor@linux.ibm.com>
parent
cd92ac25