Uploading LLDB helper for setting XPC breakpoints

X. NU/python/set_xpc_breaks.py

@@ -0,0 +1,50 @@
+import lldb
+
+def set_xpc_breaks(debugger, command, result, internal_dict):
+    """
+    Set up tracing for XPC communication.
+    This includes breakpoints for sending/receiving messages and connection creation.
+    """
+    target = debugger.GetSelectedTarget()
+    if not target:
+        result.PutCString("No target selected. Please attach to a process first.")
+        return
+
+    # List of XPC functions for setting breakpoints
+    send_functions = [
+        "xpc_connection_send_message",
+        "xpc_connection_send_message_with_reply",
+        "xpc_connection_send_message_with_reply_sync"
+    ]
+    recv_function = "xpc_connection_set_event_handler"
+    connect_functions = [
+        "xpc_connection_create",
+        "xpc_connection_create_mach_service",
+    ]
+
+    # Set breakpoints for XPC connection creation
+    for func in connect_functions:
+        bp = target.BreakpointCreateByName(func)
+        if bp.IsValid():
+            result.PutCString(f"Breakpoint set on {func}")
+        else:
+            result.PutCString(f"Failed to set breakpoint on {func}")
+
+    # Set breakpoints for sending functions
+    for func in send_functions:
+        bp = target.BreakpointCreateByName(func)
+        if bp.IsValid():
+            result.PutCString(f"Breakpoint set on {func}")
+        else:
+            result.PutCString(f"Failed to set breakpoint on {func}")
+
+    # Set breakpoint for receiving messages
+    bp_recv = target.BreakpointCreateByName(recv_function)
+    if bp_recv.IsValid():
+        result.PutCString(f"Breakpoint set on {recv_function}")
+    else:
+        result.PutCString(f"Failed to set breakpoint on {recv_function}")
+
+def __lldb_init_module(debugger, internal_dict):
+    debugger.HandleCommand('command script add -f set_xpc_breaks.set_xpc_breaks set_xpc_breaks')
+    print("The 'set_xpc_breaks' command has been loaded. Use 'set_xpc_breaks' to set up XPC message tracing.")