1 files changed, 44 insertions, 0 deletions
diff --git a/tensorflow/core/platform/default/tracing_impl.h b/tensorflow/core/platform/default/tracing_impl.h
new file mode 100644
index 0000000000..e2f5d3cb3f
--- /dev/null
+++ b/tensorflow/core/platform/default/tracing_impl.h
@@ -0,0 +1,44 @@
+#ifndef TENSORFLOW_PLATFORM_DEFAULT_TRACING_IMPL_H_
+#define TENSORFLOW_PLATFORM_DEFAULT_TRACING_IMPL_H_
+
+// Stub implementations of tracing functionality.
+
+#include "tensorflow/core/public/status.h"
+#include "tensorflow/core/lib/core/threadpool.h"
+#include "tensorflow/core/lib/random/random.h"
+#include "tensorflow/core/platform/tracing.h"
+
+namespace tensorflow {
+namespace port {
+
+// Definitions that do nothing for platforms that don't have underlying thread
+// tracing support.
+#define TRACELITERAL(a) \
+  do {                  \
+  } while (0)
+#define TRACESTRING(s) \
+  do {                 \
+  } while (0)
+#define TRACEPRINTF(format, ...) \
+  do {                           \
+  } while (0)
+
+inline uint64 Tracing::UniqueId() { return random::New64(); }
+inline bool Tracing::IsActive() { return false; }
+inline void Tracing::RegisterCurrentThread(const char* name) {}
+
+// Posts an atomic threadscape event with the supplied category and arg.
+inline void Tracing::RecordEvent(EventCategory category, uint64 arg) {
+  // TODO(opensource): Implement
+}
+
+inline Tracing::ScopedActivity::ScopedActivity(EventCategory category,
+                                               uint64 arg)
+    : enabled_(false), region_id_(category_id_[category]) {}
+
+inline Tracing::ScopedActivity::~ScopedActivity() {}
+
+}  // namespace port
+}  // namespace tensorflow
+
+#endif  // TENSORFLOW_PLATFORM_DEFAULT_TRACING_IMPL_H_