Implement event notifiers for kprobes

[deliverable/lttng-modules.git] / include / lttng / events.h

diff --git a/include/lttng/events.h b/include/lttng/events.h
index f89fe1d01fcb54c0177ae12dae01a21678d3af9c..cf04a30585dc3f0839e1dd9937f672f9477c5893 100644 (file)
--- a/include/lttng/events.h
+++ b/include/lttng/events.h
@@ -344,6 +344,7 @@ struct lttng_event_notifier {
 
        enum lttng_kernel_instrumentation instrumentation;
        union {
+               struct lttng_kprobe kprobe;
        } u;
 
        /* Backward references: list of lttng_enabler_ref (ref to enablers) */
@@ -723,6 +724,9 @@ int lttng_channel_disable(struct lttng_channel *channel);
 int lttng_event_enable(struct lttng_event *event);
 int lttng_event_disable(struct lttng_event *event);
 
+int lttng_event_notifier_enable(struct lttng_event_notifier *event_notifier);
+int lttng_event_notifier_disable(struct lttng_event_notifier *event_notifier);
+
 void lttng_transport_register(struct lttng_transport *transport);
 void lttng_transport_unregister(struct lttng_transport *transport);
 
@@ -1016,6 +1020,12 @@ int lttng_kprobes_register_event(const char *name,
                struct lttng_event *event);
 void lttng_kprobes_unregister_event(struct lttng_event *event);
 void lttng_kprobes_destroy_event_private(struct lttng_event *event);
+int lttng_kprobes_register_event_notifier(const char *symbol_name,
+               uint64_t offset,
+               uint64_t addr,
+               struct lttng_event_notifier *event_notifier);
+void lttng_kprobes_unregister_event_notifier(struct lttng_event_notifier *event_notifier);
+void lttng_kprobes_destroy_event_notifier_private(struct lttng_event_notifier *event_notifier);
 #else
 static inline
 int lttng_kprobes_register_event(const char *name,
@@ -1038,7 +1048,21 @@ void lttng_kprobes_destroy_event_private(struct lttng_event *event)
 }
 
 static inline
-void lttng_kprobes_destroy_private(struct lttng_event *event)
+int lttng_kprobes_register_event_notifier(const char *symbol_name,
+               uint64_t offset,
+               uint64_t addr,
+               struct lttng_event_notifier *event_notifier)
+{
+       return -ENOSYS;
+}
+
+static inline
+void lttng_kprobes_unregister_event_notifier(struct lttng_event_notifier *event_notifier)
+{
+}
+
+static inline
+void lttng_kprobes_destroy_event_notifier_private(struct lttng_event_notifier *event_notifier)
 {
 }
 #endif