contrib/bpf_inspect.py: fix BpfProg repr

When run drgn on kernel v5.4, there is no `tail_call_reachable` in `prog-> aux`. Check before retrieving the struct in order to avoid panic Signed-off-by: Ze Gao <[email protected]>
osandov · Nov 5, 2024 · 952f7a1 · 952f7a1
1 parent 0fff129
commit 952f7a1
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/contrib/bpf_inspect.py b/contrib/bpf_inspect.py
@@ -179,7 +179,10 @@ def __repr__(self):
         id_ = self.prog.aux.id.value_()
         type_ = BpfProgType(self.prog.type).name
         name = self.get_prog_name()
-        tail_call_reachable = self.prog.aux.tail_call_reachable.value_()
+        try:
+            tail_call_reachable = self.prog.aux.member_("tail_call_reachable").value_()
+        except LookupError:
+            tail_call_reachable = None
 
         tail_call_desc = " tail_call_reachable" if tail_call_reachable else ""