| Andrew Scull | 0372a57 | 2018-11-16 15:47:06 +0000 | [diff] [blame^] | 1 | //===- FDRTraceExpander.h - XRay FDR Mode Log Expander --------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // We define an FDR record visitor which can re-constitute XRayRecord instances |
| 11 | // from a sequence of FDR mode records in arrival order into a collection. |
| 12 | // |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | #ifndef INCLUDE_LLVM_XRAY_FDRTRACEEXPANDER_H_ |
| 15 | #define INCLUDE_LLVM_XRAY_FDRTRACEEXPANDER_H_ |
| 16 | |
| 17 | #include "llvm/ADT/STLExtras.h" |
| 18 | #include "llvm/XRay/FDRRecords.h" |
| 19 | #include "llvm/XRay/XRayRecord.h" |
| 20 | |
| 21 | namespace llvm { |
| 22 | namespace xray { |
| 23 | |
| 24 | class TraceExpander : public RecordVisitor { |
| 25 | // Type-erased callback for handling individual XRayRecord instances. |
| 26 | function_ref<void(const XRayRecord &)> C; |
| 27 | int32_t PID = 0; |
| 28 | int32_t TID = 0; |
| 29 | uint64_t BaseTSC = 0; |
| 30 | XRayRecord CurrentRecord{0, 0, RecordTypes::ENTER, 0, 0, 0, 0, {}}; |
| 31 | uint16_t CPUId = 0; |
| 32 | uint16_t LogVersion = 0; |
| 33 | bool BuildingFunction = false; |
| 34 | bool IgnoringRecords = false; |
| 35 | |
| 36 | void resetCurrentRecord(); |
| 37 | |
| 38 | public: |
| 39 | explicit TraceExpander(function_ref<void(const XRayRecord &)> F, uint16_t L) |
| 40 | : RecordVisitor(), C(std::move(F)), LogVersion(L) {} |
| 41 | |
| 42 | Error visit(BufferExtents &) override; |
| 43 | Error visit(WallclockRecord &) override; |
| 44 | Error visit(NewCPUIDRecord &) override; |
| 45 | Error visit(TSCWrapRecord &) override; |
| 46 | Error visit(CustomEventRecord &) override; |
| 47 | Error visit(CallArgRecord &) override; |
| 48 | Error visit(PIDRecord &) override; |
| 49 | Error visit(NewBufferRecord &) override; |
| 50 | Error visit(EndBufferRecord &) override; |
| 51 | Error visit(FunctionRecord &) override; |
| 52 | |
| 53 | // Must be called after all the records have been processed, to handle the |
| 54 | // most recent record generated. |
| 55 | Error flush(); |
| 56 | }; |
| 57 | |
| 58 | } // namespace xray |
| 59 | } // namespace llvm |
| 60 | |
| 61 | #endif // INCLUDE_LLVM_XRAY_FDRTRACEEXPANDER_H_ |