Group all syscall enums in one compile unit

[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 4df71ff2b0b47a11e72fd380844ba5b4569b2a6d..32ecf29d81765c24bd65ead03a6e03871e9d3bce 100644 (file)
--- a/include/lttng/tracepoint-event-impl.h
+++ b/include/lttng/tracepoint-event-impl.h
@@ -198,11 +198,13 @@ void __event_template_proto___##_name(void);
 #define TP_ENUM_VALUES(...)                                            \
        __VA_ARGS__
 
-#undef LTTNG_TRACEPOINT_ENUM
-#define LTTNG_TRACEPOINT_ENUM(_name, _values)                          \
+#ifndef LTTNG_TRACEPOINT_TYPE_EXTERN
+# undef LTTNG_TRACEPOINT_ENUM
+# define LTTNG_TRACEPOINT_ENUM(_name, _values)                         \
        static const struct lttng_kernel_enum_entry *__enum_values__##_name[] = { \
                _values                                                 \
        };
+#endif
 
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 
@@ -307,18 +309,37 @@ void __event_template_proto___##_name(void);
 #define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
        LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code_pre, PARAMS(_fields), _code_post)
 
-#undef LTTNG_TRACEPOINT_ENUM
-#define LTTNG_TRACEPOINT_ENUM(_name, _values)                                          \
-       static const struct lttng_kernel_enum_desc __enum_##_name = {                   \
-               .name = #_name,                                                         \
-               .entries = __enum_values__##_name,                                      \
-               .nr_entries = ARRAY_SIZE(__enum_values__##_name),                       \
-       };
+#ifdef LTTNG_TRACEPOINT_TYPE_EXTERN
+# undef LTTNG_TRACEPOINT_TYPE
+# define LTTNG_TRACEPOINT_TYPE(_prototype, _init)      \
+       extern _prototype;
+#elif defined (LTTNG_TRACEPOINT_TYPE_DEFINE_EXPORT)
+# define LTTNG_TRACEPOINT_TYPE_VISIBILITY __attribute__((visibility("hidden")))
+#else
+# define LTTNG_TRACEPOINT_TYPE_VISIBILITY static
+#endif
+
+#ifdef LTTNG_TRACEPOINT_TYPE_VISIBILITY
+# undef LTTNG_TRACEPOINT_TYPE
+# define LTTNG_TRACEPOINT_TYPE(_prototype, _init)      \
+       LTTNG_TRACEPOINT_TYPE_VISIBILITY _prototype = _init;
+#endif
+
+# undef LTTNG_TRACEPOINT_ENUM
+# define LTTNG_TRACEPOINT_ENUM(_name, _values)                                         \
+       LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_enum_desc __enum_##_name), \
+       PARAMS({                                                                        \
+                .name = #_name,                                                         \
+                .entries = __enum_values__##_name,                                      \
+                .nr_entries = ARRAY_SIZE(__enum_values__##_name),                       \
+        }))
 
 #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.
  *