Fix s390 kprobes support
Ever since Linux kernel commit kprobes on s390 could no longer
be found due to a change in symbol names.
Symptom:
$ ./tools/execsnoop.py
cannot attach kprobe, probe entry may not exist
[...]
@@ -182,6 +182,8 @@ class BPF(object):
b"__x32_compat_sys_",
b"__ia32_compat_sys_",
b"__arm64_sys_",
+ b"__s390x_sys_",
+ b"__s390_sys_",
]
# BPF timestamps come from the monotonic clock. To be able to filter
