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-rw-r--r--erts/emulator/beam/erlang_dtrace.d29
1 files changed, 29 insertions, 0 deletions
diff --git a/erts/emulator/beam/erlang_dtrace.d b/erts/emulator/beam/erlang_dtrace.d
index 73ef5a108a..237889e0f5 100644
--- a/erts/emulator/beam/erlang_dtrace.d
+++ b/erts/emulator/beam/erlang_dtrace.d
@@ -700,6 +700,35 @@ provider erlang {
*/
probe efile_drv__return(int, int, char *, int, int, int);
+
+/*
+ * The set of probes called by the erlang tracer nif backend. In order
+ * to receive events on these you both have to enable tracing in erlang
+ * using the trace bifs and also from dtrace/systemtap.
+ */
+
+
+ /**
+ * A trace message of type `event` was triggered by process `p`.
+ *
+ *
+ * @param p the PID (string form) of the process
+ * @param event the event that was triggered (i.e. call or spawn)
+ * @param state the state of the tracer nif as a string
+ * @param arg1 first argument to the trace event
+ * @param arg2 second argument to the trace event
+ */
+ probe trace(char *p, char *event, char *state, char *arg1, char *arg2);
+
+ /**
+ * A sequence trace message of type `label` was triggered.
+ *
+ * @param state the state of the tracer nif as a string
+ * @param label the seq trace label
+ * @param seq_info the seq trace info tuple as a string
+ */
+ probe trace_seq(char *state, char *label, char *seq_info);
+
/*
* NOTE:
* For formatting int64_t arguments within a D script, see: