Introduce struct lttng_kernel_tracepoint_class, enum probe_desc field

[lttng-modules.git] / include / lttng / tracepoint-event-impl.h

diff --git a/include/lttng/tracepoint-event-impl.h b/include/lttng/tracepoint-event-impl.h
index a1eff6c242f672576cddbd0f401467572a103b17..35b0059b1739ef11968de2b0adc093d632a9a287 100644 (file)
--- a/include/lttng/tracepoint-event-impl.h
+++ b/include/lttng/tracepoint-event-impl.h
@@ -208,6 +208,42 @@ void __event_template_proto___##_name(void);
 
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 
+/*
+ * Stage 1.3 of the trace events.
+ *
+ * Create probe callback prototypes.
+ */
+
+/* Reset all macros within TRACEPOINT_EVENT */
+#include <lttng/events-reset.h>
+
+#undef TP_PROTO
+#define TP_PROTO(...)  __VA_ARGS__
+
+#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
+#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
+static void __event_probe__##_name(void *__data, _proto);
+
+#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
+#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code_pre, _fields, _code_post) \
+static void __event_probe__##_name(void *__data);
+
+#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+
+/*
+ * Stage 1.4 of tracepoint event generation.
+ *
+ * Declare toplevel descriptor for the whole probe.
+ */
+
+#define TP_ID1(_token, _system)        _token##_system
+#define TP_ID(_token, _system) TP_ID1(_token, _system)
+
+static __used struct lttng_kernel_probe_desc TP_ID(__probe_desc___, TRACE_SYSTEM);
+
+#undef TP_ID1
+#undef TP_ID
+
 /*
  * Stage 2 of the trace events.
  *
@@ -299,10 +335,20 @@ void __event_template_proto___##_name(void);
 #undef TP_FIELDS
 #define TP_FIELDS(...) __VA_ARGS__     /* Only one used in this phase */
 
+#ifndef TP_PROBE_CB
+#define TP_PROBE_CB(_template) &__event_probe__##_template
+#endif
+
 #undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
 #define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code_pre, _fields, _code_post) \
        static const struct lttng_kernel_event_field *__event_fields___##_name[] = { \
                _fields                                                      \
+       };                                                                   \
+       static const struct lttng_kernel_tracepoint_class lttng_kernel__event_class___##_name = { \
+               .fields = __event_fields___##_name,                          \
+               .nr_fields = ARRAY_SIZE(__event_fields___##_name),           \
+               .probe_callback = (void (*)(void)) TP_PROBE_CB(_name),       \
+               .probe_desc = &TP_ID(__probe_desc___, TRACE_SYSTEM),         \
        };
 
 #undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
@@ -332,35 +378,20 @@ void __event_template_proto___##_name(void);
                 .name = #_name,                                                         \
                 .entries = __enum_values__##_name,                                      \
                 .nr_entries = ARRAY_SIZE(__enum_values__##_name),                       \
+               .probe_desc = &TP_ID(__probe_desc___, TRACE_SYSTEM),                    \
         }))
 
+#define TP_ID1(_token, _system)        _token##_system
+#define TP_ID(_token, _system) TP_ID1(_token, _system)
+
 #define LTTNG_CREATE_FIELD_METADATA
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 #undef LTTNG_CREATE_FIELD_METADATA
 
 #undef LTTNG_TRACEPOINT_TYPE_VISIBILITY
 
-/*
- * Stage 3 of the trace events.
- *
- * Create probe callback prototypes.
- */
-
-/* Reset all macros within TRACEPOINT_EVENT */
-#include <lttng/events-reset.h>
-
-#undef TP_PROTO
-#define TP_PROTO(...)  __VA_ARGS__
-
-#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
-#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
-static void __event_probe__##_name(void *__data, _proto);
-
-#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
-#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code_pre, _fields, _code_post) \
-static void __event_probe__##_name(void *__data);
-
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+#undef TP_ID1
+#undef TP_ID
 
 /*
  * Stage 4 of the trace events.
@@ -1163,20 +1194,6 @@ __post:                                                                                  \
 
 #undef __get_dynamic_len
 
-/*
- * Stage 7.0 of tracepoint event generation.
- *
- * Declare toplevel descriptor for the whole probe.
- */
-
-#define TP_ID1(_token, _system)        _token##_system
-#define TP_ID(_token, _system) TP_ID1(_token, _system)
-
-static __used struct lttng_kernel_probe_desc TP_ID(__probe_desc___, TRACE_SYSTEM);
-
-#undef TP_ID1
-#undef TP_ID
-
 /*
  * Stage 7.1 of the trace events.
  *
@@ -1187,19 +1204,13 @@ static __used struct lttng_kernel_probe_desc TP_ID(__probe_desc___, TRACE_SYSTEM
 
 #include <lttng/events-reset.h>        /* Reset all macros within LTTNG_TRACEPOINT_EVENT */
 
-#ifndef TP_PROBE_CB
-#define TP_PROBE_CB(_template) &__event_probe__##_template
-#endif
-
 #undef LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS
 #define LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP_NOARGS(_template, _name, _map)     \
 static const struct lttng_kernel_event_desc __event_desc___##_map = {  \
        .event_name = #_map,                                            \
        .event_kname = #_name,                                          \
+       .tp_class = &lttng_kernel__event_class___##_template,           \
        .probe_desc = &TP_ID(__probe_desc___, TRACE_SYSTEM),            \
-       .probe_callback = (void (*)(void)) TP_PROBE_CB(_template),      \
-       .fields = __event_fields___##_template,                         \
-       .nr_fields = ARRAY_SIZE(__event_fields___##_template),          \
        .owner = THIS_MODULE,                                           \
 };