Use tracepoint definition files directly

tracetools/.gitignore

@@ -1,5 +0,0 @@
-traces/
-
-# generated files (LTTng)
-tp_call.c
-tp_call.h

tracetools/CMakeLists.txt

@@ -19,15 +19,8 @@ if(WITH_LTTNG)
   pkg_check_modules(LTTNG REQUIRED lttng-ust)
 endif()
 if(LTTNG_FOUND)
-  # Generate necessary LTTng files
-  # If successful, enable tracing
-  add_custom_command(OUTPUT ${PROJECT_SOURCE_DIR}/src/tp_call.c ${PROJECT_SOURCE_DIR}/include/tp_call.h
-    COMMAND lttng-gen-tp tp_call.tp -o tp_call.c -o ../include/tp_call.h
-    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/src
-    DEPENDS ${PROJECT_SOURCE_DIR}/src/tp_call.tp
-  )
-  set(LTTNG_GENERATED
-    include/tp_call.h
+  set(LTTNG_TP_FILES
+    include/tracetools/tp_call.h
     src/tp_call.c
   )
   set(TRACING_ENABLED TRUE)
@@ -61,7 +54,7 @@ set(SOURCES
   src/utils.cpp
 )
 if(TRACING_ENABLED)
-  list(APPEND SOURCES ${LTTNG_GENERATED})
+  list(APPEND SOURCES ${LTTNG_TP_FILES})
 endif()
 
 add_library(${PROJECT_NAME} ${SOURCES})

tracetools/include/tracetools/tp_call.h

@@ -12,10 +12,21 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#undef TRACEPOINT_PROVIDER
+#define TRACEPOINT_PROVIDER ros2
+
+#undef TRACEPOINT_INCLUDE
+#define TRACEPOINT_INCLUDE "tracetools/tp_call.h"
+
+#if !defined(___INCLUDE_TP_CALL_H) || defined(TRACEPOINT_HEADER_MULTI_READ)
+#define ___INCLUDE_TP_CALL_H
+
+#include <lttng/tracepoint.h>
+
 #include <stdint.h>
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rcl_init,
   TP_ARGS(
     const void *, context_handle_arg,
@@ -28,7 +39,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rcl_node_init,
   TP_ARGS(
     const void *, node_handle_arg,
@@ -45,7 +56,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rcl_publisher_init,
   TP_ARGS(
     const void *, publisher_handle_arg,
@@ -64,7 +75,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rcl_subscription_init,
   TP_ARGS(
     const void *, subscription_handle_arg,
@@ -83,7 +94,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rclcpp_subscription_callback_added,
   TP_ARGS(
     const void *, subscription_handle_arg,
@@ -96,7 +107,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rcl_service_init,
   TP_ARGS(
     const void *, service_handle_arg,
@@ -113,7 +124,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rclcpp_service_callback_added,
   TP_ARGS(
     const void *, service_handle_arg,
@@ -126,7 +137,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rcl_client_init,
   TP_ARGS(
     const void *, client_handle_arg,
@@ -143,7 +154,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rcl_timer_init,
   TP_ARGS(
     const void *, timer_handle_arg,
@@ -156,7 +167,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rclcpp_timer_callback_added,
   TP_ARGS(
     const void *, timer_handle_arg,
@@ -169,7 +180,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   rclcpp_callback_register,
   TP_ARGS(
     const void *, callback_arg,
@@ -182,7 +193,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   callback_start,
   TP_ARGS(
     const void *, callback_arg,
@@ -195,7 +206,7 @@ TRACEPOINT_EVENT(
 )
 
 TRACEPOINT_EVENT(
-  ros2,
+  TRACEPOINT_PROVIDER,
   callback_end,
   TP_ARGS(
     const void *, callback_arg
@@ -204,3 +215,7 @@ TRACEPOINT_EVENT(
     ctf_integer_hex(const void *, callback, callback_arg)
   )
 )
+
+#endif /* ___INCLUDE_TP_CALL_H */
+
+#include <lttng/tracepoint-event.h>

tracetools/src/tp_call.c

@@ -0,0 +1,20 @@
+// Copyright 2019 Robert Bosch GmbH
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#define TRACEPOINT_CREATE_PROBES
+/*
+ * The header containing our TRACEPOINT_EVENTs.
+ */
+#define TRACEPOINT_DEFINE
+#include "tracetools/tp_call.h"

tracetools/src/tracetools.c

@@ -15,7 +15,7 @@
 #include "tracetools/tracetools.h"
 
 #if defined(WITH_LTTNG) && !defined(_WIN32)
-# include "tp_call.h"
+# include "tracetools/tp_call.h"
 # define CONDITIONAL_TP(...) \
   tracepoint(__VA_ARGS__)
 #else