Fix: ust-tracepoint: make sure to expand tracepoint provider token

[lttng-ust.git] / include / lttng / ust-tracepoint-event.h

diff --git a/include/lttng/ust-tracepoint-event.h b/include/lttng/ust-tracepoint-event.h
index ec292d24d4e96dbaaec8d111cbef69da50067634..63b3bd499085433552432dd9a2c396cfa6bfdf00 100644 (file)
--- a/include/lttng/ust-tracepoint-event.h
+++ b/include/lttng/ust-tracepoint-event.h
@@ -52,12 +52,20 @@
 
 #undef TRACEPOINT_EVENT
 #define TRACEPOINT_EVENT(_provider, _name, _args, _fields)     \
-       TRACEPOINT_EVENT_CLASS(_provider, _name,                \
+       _TRACEPOINT_EVENT_CLASS(_provider, _name,               \
                         _TP_PARAMS(_args),                     \
                         _TP_PARAMS(_fields))                   \
-       TRACEPOINT_EVENT_INSTANCE(_provider, _name, _name,      \
+       _TRACEPOINT_EVENT_INSTANCE(_provider, _name, _name,     \
                         _TP_PARAMS(_args))
 
+#undef TRACEPOINT_EVENT_CLASS
+#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)               \
+       _TRACEPOINT_EVENT_CLASS(_provider, _name, _TP_PARAMS(_args), _TP_PARAMS(_fields))
+
+#undef TRACEPOINT_EVENT_INSTANCE
+#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)  \
+       _TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _TP_PARAMS(_args))
+
 /* Helpers */
 #define _TP_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 
@@ -85,12 +93,12 @@ void _TP_COMBINE_TOKENS(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(vo
 {
 }
 
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)       \
+#undef _TRACEPOINT_EVENT_CLASS
+#define _TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)      \
        __tracepoint_provider_mismatch_##_provider();
 
-#undef TRACEPOINT_EVENT_INSTANCE
-#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)  \
+#undef _TRACEPOINT_EVENT_INSTANCE
+#define _TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
        __tracepoint_provider_mismatch_##_provider();
 
 static inline lttng_ust_notrace
@@ -111,8 +119,8 @@ void _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(void)
 /* Reset all macros within TRACEPOINT_EVENT */
 #include <lttng/ust-tracepoint-event-reset.h>
 
-#undef TRACEPOINT_EVENT_INSTANCE
-#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)  \
+#undef _TRACEPOINT_EVENT_INSTANCE
+#define _TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
 static const char                                                      \
        __tp_name_len_check##_provider##___##_name[LTTNG_UST_SYM_NAME_LEN] \
        __attribute__((unused)) =                                       \
@@ -120,6 +128,30 @@ static const char                                                  \
 
 #include TRACEPOINT_INCLUDE
 
+/*
+ * Stage 0.2 of tracepoint event generation.
+ *
+ * Create dummy trace prototypes for each event class, and for each used
+ * template. This will allow checking whether the prototypes from the
+ * class and the instance using the class actually match.
+ */
+
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <lttng/ust-tracepoint-event-reset.h>
+
+#undef TP_ARGS
+#define TP_ARGS(...)   __VA_ARGS__
+
+#undef _TRACEPOINT_EVENT_INSTANCE
+#define _TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
+void __event_template_proto___##_provider##___##_template(_TP_ARGS_DATA_PROTO(_args));
+
+#undef _TRACEPOINT_EVENT_CLASS
+#define _TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
+void __event_template_proto___##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args));
+
+#include TRACEPOINT_INCLUDE
+
 /*
  * Stage 0.9 of tracepoint event generation
  *
@@ -307,8 +339,8 @@ static const char                                                   \
 #undef TP_FIELDS
 #define TP_FIELDS(...) __VA_ARGS__     /* Only one used in this phase */
 
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)                            \
+#undef _TRACEPOINT_EVENT_CLASS
+#define _TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)                           \
        static const struct lttng_event_field __event_fields___##_provider##___##_name[] = { \
                _fields                                                                      \
                ctf_integer(int, dummy, 0)      /* Dummy, C99 forbids 0-len array. */        \
@@ -336,8 +368,8 @@ static const char                                                   \
 #undef TP_ARGS
 #define TP_ARGS(...) __VA_ARGS__
 
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)               \
+#undef _TRACEPOINT_EVENT_CLASS
+#define _TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)              \
 static void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args));
 
 #include TRACEPOINT_INCLUDE
@@ -393,8 +425,8 @@ static void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args));
 #undef TP_FIELDS
 #define TP_FIELDS(...) __VA_ARGS__
 
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)             \
+#undef _TRACEPOINT_EVENT_CLASS
+#define _TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)            \
 static inline lttng_ust_notrace                                                      \
 size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS_DATA_PROTO(_args)); \
 static inline                                                                \
@@ -553,8 +585,8 @@ size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS
 #undef TP_FIELDS
 #define TP_FIELDS(...) __VA_ARGS__
 
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)             \
+#undef _TRACEPOINT_EVENT_CLASS
+#define _TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)            \
 static inline                                                                \
 void __event_prepare_filter_stack__##_provider##___##_name(char *__stack_data,\
                                                 _TP_ARGS_DATA_PROTO(_args))  \
@@ -606,8 +638,8 @@ void __event_prepare_filter_stack__##_provider##___##_name(char *__stack_data,\
 #undef TP_FIELDS
 #define TP_FIELDS(...) __VA_ARGS__
 
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)             \
+#undef _TRACEPOINT_EVENT_CLASS
+#define _TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)            \
 static inline lttng_ust_notrace                                                      \
 size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args));     \
 static inline                                                                \
@@ -743,8 +775,8 @@ size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args))      \
  * 2*sizeof(unsigned long) for all supported architectures.
  * Perform UNION (||) of filter runtime list.
  */
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)             \
+#undef _TRACEPOINT_EVENT_CLASS
+#define _TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)            \
 static lttng_ust_notrace                                                     \
 void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args));      \
 static                                                                       \
@@ -823,8 +855,8 @@ void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args))           \
 
 #define _TP_EXTRACT_STRING2(...)       #__VA_ARGS__
 
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)       \
+#undef _TRACEPOINT_EVENT_CLASS
+#define _TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)      \
 static const char __tp_event_signature___##_provider##___##_name[] =   \
                _TP_EXTRACT_STRING2(_args);
 
@@ -908,8 +940,8 @@ LTTNG_TP_EXTERN_C const char *_model_emf_uri___##__provider##___##__name   \
 /* Reset all macros within TRACEPOINT_EVENT */
 #include <lttng/ust-tracepoint-event-reset.h>
 
-#undef TRACEPOINT_EVENT_INSTANCE
-#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)         \
+#undef _TRACEPOINT_EVENT_INSTANCE
+#define _TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)        \
 static const int *                                                            \
        __ref_loglevel___##_provider##___##_name                               \
        __attribute__((weakref ("_loglevel___" #_provider "___" #_name)));     \
@@ -942,8 +974,8 @@ static const struct lttng_event_desc __event_desc___##_provider##_##_name = {
 /* Reset all macros within TRACEPOINT_EVENT */
 #include <lttng/ust-tracepoint-event-reset.h>
 
-#undef TRACEPOINT_EVENT_INSTANCE
-#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)         \
+#undef _TRACEPOINT_EVENT_INSTANCE
+#define _TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)        \
        &__event_desc___##_provider##_##_name,
 
 static const struct lttng_event_desc *_TP_COMBINE_TOKENS(__event_desc___, TRACEPOINT_PROVIDER)[] = {