1 files changed, 31 insertions, 0 deletions
diff --git a/sys/tools/gdb/selftest.py b/sys/tools/gdb/selftest.py
new file mode 100644
index 000000000000..41e9211c4bb3
--- /dev/null
+++ b/sys/tools/gdb/selftest.py
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2025 Mark Johnston <markj@FreeBSD.org>
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+
+import gdb
+
+cmds = ["acttrace",
+        "p $V(\"tcbinfo\")",
+        "p $V(\"tcbinfo\", vnet0)",
+        "p $V(\"pf_status\")",
+        "p $V(\"pf_status\", \"gdbselftest\")",
+        "p $PCPU(\"curthread\")",
+        "p $PCPU(\"curthread\", 0)",
+        "p/x $PCPU(\"hardclocktime\", 1)",
+        "p $PCPU(\"pqbatch\")[0][0]",
+        "p $PCPU(\"ss\", 1)",
+        ]
+
+for cmd in cmds:
+    try:
+        print(f"Running command: '{cmd}'")
+        gdb.execute(cmd)
+    except gdb.error as e:
+        print(f"Command '{cmd}' failed: {e}")
+        break
+
+# We didn't hit any unexpected errors.  This isn't as good as actually
+# verifying the output, but it's better than nothing.
+print("Everything seems OK")