Add basic tracing lib files

tracetools/include/tracetools/tracetools.h

@@ -0,0 +1,30 @@
+#ifndef __TRACETOOLS_TRACETOOLS_H_
+#define __TRACETOOLS_TRACETOOLS_H_
+
+#include <stdint.h>
+#include <string.h>
+#include <stdbool.h>
+
+#define TRACEPOINT(event_name, ...) \
+    (ros_trace_##event_name)(__VA_ARGS__)
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/**
+ * Report whether tracing is compiled in
+ */
+bool ros_trace_compile_status();
+
+/**
+ * tp: rcl_init
+ */
+void ros_trace_rcl_init();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __TRACETOOLS_TRACETOOLS_H_ */