Add new rclcpp_subscription_init tracepoint as an intermediate

tracetools/include/tracetools/tp_call.h

@@ -100,13 +100,26 @@ TRACEPOINT_EVENT(
 
 TRACEPOINT_EVENT(
   TRACEPOINT_PROVIDER,
-  rclcpp_subscription_callback_added,
+  rclcpp_subscription_init,
   TP_ARGS(
     const void *, subscription_handle_arg,
-    const void *, callback_arg
+    const void *, subscription_arg
   ),
   TP_FIELDS(
     ctf_integer_hex(const void *, subscription_handle, subscription_handle_arg)
+    ctf_integer_hex(const void *, subscription, subscription_arg)
+  )
+)
+
+TRACEPOINT_EVENT(
+  TRACEPOINT_PROVIDER,
+  rclcpp_subscription_callback_added,
+  TP_ARGS(
+    const void *, subscription_arg,
+    const void *, callback_arg
+  ),
+  TP_FIELDS(
+    ctf_integer_hex(const void *, subscription, subscription_arg)
     ctf_integer_hex(const void *, callback, callback_arg)
   )
 )

tracetools/include/tracetools/tracetools.h

@@ -80,12 +80,20 @@ DECLARE_TRACEPOINT(
   const char * topic_name,
   const size_t queue_depth)
 
+/**
+ * tp: rclcpp_subscription_init
+ */
+DECLARE_TRACEPOINT(
+  rclcpp_subscription_init,
+  const void * subscription_handle,
+  const void * subscription)
+
 /**
  * tp: rclcpp_subscription_callback_added
  */
 DECLARE_TRACEPOINT(
   rclcpp_subscription_callback_added,
-  const void * subscription_handle,
+  const void * subscription,
   const void * callback)
 
 /**

tracetools/src/tracetools.c

@@ -105,14 +105,26 @@ void TRACEPOINT(
 }
 
 void TRACEPOINT(
-  rclcpp_subscription_callback_added,
+  rclcpp_subscription_init,
   const void * subscription_handle,
+  const void * subscription)
+{
+  CONDITIONAL_TP(
+    ros2,
+    rclcpp_subscription_init,
+    subscription_handle,
+    subscription);
+}
+
+void TRACEPOINT(
+  rclcpp_subscription_callback_added,
+  const void * subscription,
   const void * callback)
 {
   CONDITIONAL_TP(
     ros2,
     rclcpp_subscription_callback_added,
-    subscription_handle,
+    subscription,
     callback);
 }