| //===- FDRTraceExpander.h - XRay FDR Mode Log Expander --------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // We define an FDR record visitor which can re-constitute XRayRecord instances |
| // from a sequence of FDR mode records in arrival order into a collection. |
| // |
| //===----------------------------------------------------------------------===// |
| #ifndef LLVM_XRAY_FDRTRACEEXPANDER_H |
| #define LLVM_XRAY_FDRTRACEEXPANDER_H |
| |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/XRay/FDRRecords.h" |
| #include "llvm/XRay/XRayRecord.h" |
| |
| namespace llvm { |
| namespace xray { |
| |
| class TraceExpander : public RecordVisitor { |
| // Type-erased callback for handling individual XRayRecord instances. |
| function_ref<void(const XRayRecord &)> C; |
| int32_t PID = 0; |
| int32_t TID = 0; |
| uint64_t BaseTSC = 0; |
| XRayRecord CurrentRecord{0, 0, RecordTypes::ENTER, 0, 0, 0, 0, {}, {}}; |
| uint16_t CPUId = 0; |
| uint16_t LogVersion = 0; |
| bool BuildingRecord = false; |
| bool IgnoringRecords = false; |
| |
| void resetCurrentRecord(); |
| |
| public: |
| explicit TraceExpander(function_ref<void(const XRayRecord &)> F, uint16_t L) |
| : C(std::move(F)), LogVersion(L) {} |
| |
| 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; |
| |
| // Must be called after all the records have been processed, to handle the |
| // most recent record generated. |
| Error flush(); |
| }; |
| |
| } // namespace xray |
| } // namespace llvm |
| |
| #endif // LLVM_XRAY_FDRTRACEEXPANDER_H |