1 files changed, 55 insertions, 0 deletions
diff --git a/clang-r353983e/include/llvm/XRay/FDRTraceWriter.h b/clang-r353983e/include/llvm/XRay/FDRTraceWriter.h
new file mode 100644
index 00000000..2498877e
--- /dev/null
+++ b/clang-r353983e/include/llvm/XRay/FDRTraceWriter.h
@@ -0,0 +1,55 @@
+//===- FDRTraceWriter.h - XRay FDR Trace Writer -----------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Test a utility that can write out XRay FDR Mode formatted trace files.
+//
+//===----------------------------------------------------------------------===//
+#ifndef LLVM_INCLUDE_LLVM_XRAY_FDRTRACEWRITER_H_
+#define LLVM_INCLUDE_LLVM_XRAY_FDRTRACEWRITER_H_
+
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/EndianStream.h"
+#include "llvm/XRay/FDRRecords.h"
+#include "llvm/XRay/XRayRecord.h"
+
+namespace llvm {
+namespace xray {
+
+/// The FDRTraceWriter allows us to hand-craft an XRay Flight Data Recorder
+/// (FDR) mode log file. This is used primarily for testing, generating
+/// sequences of FDR records that can be read/processed. It can also be used to
+/// generate various kinds of execution traces without using the XRay runtime.
+/// Note that this writer does not do any validation, but uses the types of
+/// records defined in the FDRRecords.h file.
+class FDRTraceWriter : public RecordVisitor {
+public:
+  // Construct an FDRTraceWriter associated with an output stream.
+  explicit FDRTraceWriter(raw_ostream &O, const XRayFileHeader &H);
+  ~FDRTraceWriter();
+
+  Error visit(BufferExtents &) override;
+  Error visit(WallclockRecord &) override;
+  Error visit(NewCPUIDRecord &) override;
+  Error visit(TSCWrapRecord &) override;
+  Error visit(CustomEventRecord &) override;
+  Error visit(CallArgRecord &) override;
+  Error visit(PIDRecord &) override;
+  Error visit(NewBufferRecord &) override;
+  Error visit(EndBufferRecord &) override;
+  Error visit(FunctionRecord &) override;
+  Error visit(CustomEventRecordV5 &) override;
+  Error visit(TypedEventRecord &) override;
+
+private:
+  support::endian::Writer OS;
+};
+
+} // namespace xray
+} // namespace llvm
+
+#endif // LLVM_INCLUDE_LLVM_XRAY_FDRTRACEWRITER_H_