trace: print a warning if user tries to enable an unknown trace event

[mirror_qemu.git] / simpletrace.h

diff --git a/simpletrace.h b/simpletrace.h
index cf3589774b438f31214837eec14de25555277281..72614ec1d159fc57f706875cca100e8290bb2945 100644 (file)
--- a/simpletrace.h
+++ b/simpletrace.h
@@ -31,7 +31,7 @@ void trace5(TraceEventID event, uint64_t x1, uint64_t x2, uint64_t x3, uint64_t
 void trace6(TraceEventID event, uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4, uint64_t x5, uint64_t x6);
 void st_print_trace(FILE *stream, int (*stream_printf)(FILE *stream, const char *fmt, ...));
 void st_print_trace_events(FILE *stream, int (*stream_printf)(FILE *stream, const char *fmt, ...));
-void st_change_trace_event_state(const char *tname, bool tstate);
+bool st_change_trace_event_state(const char *tname, bool tstate);
 void st_print_trace_file_status(FILE *stream, int (*stream_printf)(FILE *stream, const char *fmt, ...));
 void st_set_trace_file_enabled(bool enable);
 bool st_set_trace_file(const char *file);