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-rw-r--r--erts/emulator/beam/erl_process.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 43937f216c..86798df64e 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -1226,9 +1226,10 @@ void erts_check_for_holes(Process* p);
/* The sequential tracing token is a tuple of size 5:
*
- * {Flags, Label, Serial, Sender}
+ * {Flags, Label, Serial, Sender, LastCnt}
+ *
+ * WARNING: The top 5-tuple is *MUTABLE* and thus INTERNAL ONLY.
*/
-
#define SEQ_TRACE_TOKEN_ARITY(p) (arityval(*(tuple_val(SEQ_TRACE_TOKEN(p)))))
#define SEQ_TRACE_TOKEN_FLAGS(p) (*(tuple_val(SEQ_TRACE_TOKEN(p)) + 1))
#define SEQ_TRACE_TOKEN_LABEL(p) (*(tuple_val(SEQ_TRACE_TOKEN(p)) + 2))