Add symbolization example

blazesym-example/stack_traces.py

@@ -0,0 +1,49 @@
+# tests/passing_tests/ringbuf_advanced.py
+from pythonbpf import bpf, map, section, bpfglobal, struct, compile
+from pythonbpf.maps import RingBuffer
+from pythonbpf.helper import ktime, pid, smp_processor_id, comm, get_stack
+from ctypes import c_void_p, c_int32, c_int64
+import logging
+
+
+@bpf
+@struct
+class exec_event:
+    pid: c_int64
+    cpu: c_int32
+    timestamp: c_int64
+    comm: str(16)  # type: ignore [valid-type]
+    kstack_sz: c_int64
+    ustack_sz: c_int64
+    kstack: str(128)  # type: ignore [valid-type]
+    ustack: str(128)  # type: ignore [valid-type]
+
+
+@bpf
+@map
+def exec_events() -> RingBuffer:
+    return RingBuffer(max_entries=1048576)
+
+
+@bpf
+@section("perf_event")
+def trace_exec_enter(ctx: c_void_p) -> c_int64:
+    evt = exec_event()
+    evt.pid = pid()
+    evt.cpu = smp_processor_id()
+    evt.timestamp = ktime()
+    comm(evt.comm)
+    evt.kstack_sz = get_stack(evt.kstack)
+    evt.ustack_sz = get_stack(evt.ustack, 256)
+    exec_events.output(evt)
+    print(f"Submitted exec_event for pid: {evt.pid}, cpu: {evt.cpu}")
+    return 0  # type: ignore [return-value]
+
+
+@bpf
+@bpfglobal
+def LICENSE() -> str:
+    return "GPL"
+
+
+compile(logging.INFO)