| //===- 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_ |