The first symbol from /proc/kallsyms is read by 'test_debuginfo'
and the name obtained here is compared against the name obtained
from the BPF.ksym() library call. In some architectures such as
powerpc64le, a kernel symbol may have multiple aliases that refer
to the same address. So, to avoid the test from failing, we need
to compare the name returned by BPF.ksym() against all possible
aliases for the given address in /proc/kallsyms and look for a
match.
Signed-off-by: Sandipan Das <sandipan@linux.vnet.ibm.com>