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https://github.com/RPCS3/llvm-mirror.git
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450 lines
12 KiB
C++
450 lines
12 KiB
C++
//===- FDRRecords.h - XRay Flight Data Recorder Mode Records --------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Define types and operations on these types that represent the different kinds
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// of records we encounter in XRay flight data recorder mode traces.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_XRAY_FDRRECORDS_H
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#define LLVM_XRAY_FDRRECORDS_H
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#include <cstdint>
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#include <string>
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/DataExtractor.h"
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#include "llvm/Support/Error.h"
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#include "llvm/XRay/XRayRecord.h"
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namespace llvm {
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namespace xray {
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class RecordVisitor;
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class RecordInitializer;
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class Record {
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public:
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enum class RecordKind {
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RK_Metadata,
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RK_Metadata_BufferExtents,
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RK_Metadata_WallClockTime,
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RK_Metadata_NewCPUId,
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RK_Metadata_TSCWrap,
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RK_Metadata_CustomEvent,
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RK_Metadata_CustomEventV5,
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RK_Metadata_CallArg,
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RK_Metadata_PIDEntry,
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RK_Metadata_NewBuffer,
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RK_Metadata_EndOfBuffer,
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RK_Metadata_TypedEvent,
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RK_Metadata_LastMetadata,
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RK_Function,
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};
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static StringRef kindToString(RecordKind K);
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private:
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const RecordKind T;
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public:
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Record(const Record &) = delete;
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Record(Record &&) = delete;
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Record &operator=(const Record &) = delete;
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Record &operator=(Record &&) = delete;
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explicit Record(RecordKind T) : T(T) {}
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RecordKind getRecordType() const { return T; }
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// Each Record should be able to apply an abstract visitor, and choose the
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// appropriate function in the visitor to invoke, given its own type.
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virtual Error apply(RecordVisitor &V) = 0;
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virtual ~Record() = default;
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};
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class MetadataRecord : public Record {
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public:
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enum class MetadataType : unsigned {
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Unknown,
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BufferExtents,
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WallClockTime,
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NewCPUId,
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TSCWrap,
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CustomEvent,
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CallArg,
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PIDEntry,
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NewBuffer,
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EndOfBuffer,
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TypedEvent,
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};
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protected:
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static constexpr int kMetadataBodySize = 15;
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friend class RecordInitializer;
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private:
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const MetadataType MT;
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public:
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explicit MetadataRecord(RecordKind T, MetadataType M) : Record(T), MT(M) {}
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static bool classof(const Record *R) {
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return R->getRecordType() >= RecordKind::RK_Metadata &&
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R->getRecordType() <= RecordKind::RK_Metadata_LastMetadata;
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}
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MetadataType metadataType() const { return MT; }
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virtual ~MetadataRecord() = default;
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};
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// What follows are specific Metadata record types which encapsulate the
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// information associated with specific metadata record types in an FDR mode
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// log.
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class BufferExtents : public MetadataRecord {
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uint64_t Size = 0;
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friend class RecordInitializer;
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public:
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BufferExtents()
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: MetadataRecord(RecordKind::RK_Metadata_BufferExtents,
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MetadataType::BufferExtents) {}
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explicit BufferExtents(uint64_t S)
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: MetadataRecord(RecordKind::RK_Metadata_BufferExtents,
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MetadataType::BufferExtents),
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Size(S) {}
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uint64_t size() const { return Size; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_BufferExtents;
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}
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};
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class WallclockRecord : public MetadataRecord {
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uint64_t Seconds = 0;
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uint32_t Nanos = 0;
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friend class RecordInitializer;
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public:
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WallclockRecord()
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: MetadataRecord(RecordKind::RK_Metadata_WallClockTime,
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MetadataType::WallClockTime) {}
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explicit WallclockRecord(uint64_t S, uint32_t N)
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: MetadataRecord(RecordKind::RK_Metadata_WallClockTime,
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MetadataType::WallClockTime),
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Seconds(S), Nanos(N) {}
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uint64_t seconds() const { return Seconds; }
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uint32_t nanos() const { return Nanos; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_WallClockTime;
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}
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};
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class NewCPUIDRecord : public MetadataRecord {
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uint16_t CPUId = 0;
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uint64_t TSC = 0;
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friend class RecordInitializer;
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public:
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NewCPUIDRecord()
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: MetadataRecord(RecordKind::RK_Metadata_NewCPUId,
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MetadataType::NewCPUId) {}
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NewCPUIDRecord(uint16_t C, uint64_t T)
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: MetadataRecord(RecordKind::RK_Metadata_NewCPUId,
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MetadataType::NewCPUId),
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CPUId(C), TSC(T) {}
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uint16_t cpuid() const { return CPUId; }
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uint64_t tsc() const { return TSC; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_NewCPUId;
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}
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};
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class TSCWrapRecord : public MetadataRecord {
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uint64_t BaseTSC = 0;
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friend class RecordInitializer;
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public:
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TSCWrapRecord()
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: MetadataRecord(RecordKind::RK_Metadata_TSCWrap, MetadataType::TSCWrap) {
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}
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explicit TSCWrapRecord(uint64_t B)
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: MetadataRecord(RecordKind::RK_Metadata_TSCWrap, MetadataType::TSCWrap),
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BaseTSC(B) {}
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uint64_t tsc() const { return BaseTSC; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_TSCWrap;
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}
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};
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class CustomEventRecord : public MetadataRecord {
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int32_t Size = 0;
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uint64_t TSC = 0;
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uint16_t CPU = 0;
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std::string Data{};
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friend class RecordInitializer;
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public:
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CustomEventRecord()
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: MetadataRecord(RecordKind::RK_Metadata_CustomEvent,
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MetadataType::CustomEvent) {}
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explicit CustomEventRecord(uint64_t S, uint64_t T, uint16_t C, std::string D)
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: MetadataRecord(RecordKind::RK_Metadata_CustomEvent,
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MetadataType::CustomEvent),
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Size(S), TSC(T), CPU(C), Data(std::move(D)) {}
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int32_t size() const { return Size; }
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uint64_t tsc() const { return TSC; }
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uint16_t cpu() const { return CPU; }
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StringRef data() const { return Data; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_CustomEvent;
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}
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};
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class CustomEventRecordV5 : public MetadataRecord {
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int32_t Size = 0;
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int32_t Delta = 0;
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std::string Data{};
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friend class RecordInitializer;
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public:
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CustomEventRecordV5()
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: MetadataRecord(RecordKind::RK_Metadata_CustomEventV5,
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MetadataType::CustomEvent) {}
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explicit CustomEventRecordV5(int32_t S, int32_t D, std::string P)
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: MetadataRecord(RecordKind::RK_Metadata_CustomEventV5,
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MetadataType::CustomEvent),
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Size(S), Delta(D), Data(std::move(P)) {}
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int32_t size() const { return Size; }
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int32_t delta() const { return Delta; }
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StringRef data() const { return Data; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_CustomEventV5;
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}
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};
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class TypedEventRecord : public MetadataRecord {
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int32_t Size = 0;
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int32_t Delta = 0;
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uint16_t EventType = 0;
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std::string Data{};
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friend class RecordInitializer;
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public:
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TypedEventRecord()
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: MetadataRecord(RecordKind::RK_Metadata_TypedEvent,
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MetadataType::TypedEvent) {}
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explicit TypedEventRecord(int32_t S, int32_t D, uint16_t E, std::string P)
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: MetadataRecord(RecordKind::RK_Metadata_TypedEvent,
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MetadataType::TypedEvent),
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Size(S), Delta(D), Data(std::move(P)) {}
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int32_t size() const { return Size; }
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int32_t delta() const { return Delta; }
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uint16_t eventType() const { return EventType; }
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StringRef data() const { return Data; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_TypedEvent;
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}
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};
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class CallArgRecord : public MetadataRecord {
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uint64_t Arg = 0;
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friend class RecordInitializer;
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public:
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CallArgRecord()
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: MetadataRecord(RecordKind::RK_Metadata_CallArg, MetadataType::CallArg) {
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}
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explicit CallArgRecord(uint64_t A)
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: MetadataRecord(RecordKind::RK_Metadata_CallArg, MetadataType::CallArg),
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Arg(A) {}
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uint64_t arg() const { return Arg; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_CallArg;
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}
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};
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class PIDRecord : public MetadataRecord {
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int32_t PID = 0;
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friend class RecordInitializer;
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public:
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PIDRecord()
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: MetadataRecord(RecordKind::RK_Metadata_PIDEntry,
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MetadataType::PIDEntry) {}
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explicit PIDRecord(int32_t P)
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: MetadataRecord(RecordKind::RK_Metadata_PIDEntry,
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MetadataType::PIDEntry),
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PID(P) {}
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int32_t pid() const { return PID; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_PIDEntry;
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}
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};
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class NewBufferRecord : public MetadataRecord {
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int32_t TID = 0;
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friend class RecordInitializer;
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public:
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NewBufferRecord()
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: MetadataRecord(RecordKind::RK_Metadata_NewBuffer,
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MetadataType::NewBuffer) {}
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explicit NewBufferRecord(int32_t T)
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: MetadataRecord(RecordKind::RK_Metadata_NewBuffer,
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MetadataType::NewBuffer),
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TID(T) {}
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int32_t tid() const { return TID; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_NewBuffer;
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}
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};
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class EndBufferRecord : public MetadataRecord {
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public:
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EndBufferRecord()
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: MetadataRecord(RecordKind::RK_Metadata_EndOfBuffer,
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MetadataType::EndOfBuffer) {}
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Metadata_EndOfBuffer;
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}
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};
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class FunctionRecord : public Record {
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RecordTypes Kind;
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int32_t FuncId = 0;
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uint32_t Delta = 0;
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friend class RecordInitializer;
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static constexpr unsigned kFunctionRecordSize = 8;
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public:
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FunctionRecord() : Record(RecordKind::RK_Function) {}
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explicit FunctionRecord(RecordTypes K, int32_t F, uint32_t D)
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: Record(RecordKind::RK_Function), Kind(K), FuncId(F), Delta(D) {}
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// A function record is a concrete record type which has a number of common
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// properties.
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RecordTypes recordType() const { return Kind; }
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int32_t functionId() const { return FuncId; }
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uint32_t delta() const { return Delta; }
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Error apply(RecordVisitor &V) override;
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static bool classof(const Record *R) {
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return R->getRecordType() == RecordKind::RK_Function;
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}
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};
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class RecordVisitor {
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public:
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virtual ~RecordVisitor() = default;
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// Support all specific kinds of records:
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virtual Error visit(BufferExtents &) = 0;
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virtual Error visit(WallclockRecord &) = 0;
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virtual Error visit(NewCPUIDRecord &) = 0;
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virtual Error visit(TSCWrapRecord &) = 0;
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virtual Error visit(CustomEventRecord &) = 0;
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virtual Error visit(CallArgRecord &) = 0;
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virtual Error visit(PIDRecord &) = 0;
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virtual Error visit(NewBufferRecord &) = 0;
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virtual Error visit(EndBufferRecord &) = 0;
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virtual Error visit(FunctionRecord &) = 0;
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virtual Error visit(CustomEventRecordV5 &) = 0;
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virtual Error visit(TypedEventRecord &) = 0;
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};
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class RecordInitializer : public RecordVisitor {
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DataExtractor &E;
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uint64_t &OffsetPtr;
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uint16_t Version;
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public:
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static constexpr uint16_t DefaultVersion = 5u;
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explicit RecordInitializer(DataExtractor &DE, uint64_t &OP, uint16_t V)
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: RecordVisitor(), E(DE), OffsetPtr(OP), Version(V) {}
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explicit RecordInitializer(DataExtractor &DE, uint64_t &OP)
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: RecordInitializer(DE, OP, DefaultVersion) {}
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Error visit(BufferExtents &) override;
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Error visit(WallclockRecord &) override;
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Error visit(NewCPUIDRecord &) override;
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Error visit(TSCWrapRecord &) override;
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Error visit(CustomEventRecord &) override;
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Error visit(CallArgRecord &) override;
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Error visit(PIDRecord &) override;
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Error visit(NewBufferRecord &) override;
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Error visit(EndBufferRecord &) override;
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Error visit(FunctionRecord &) override;
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Error visit(CustomEventRecordV5 &) override;
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Error visit(TypedEventRecord &) override;
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};
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} // namespace xray
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} // namespace llvm
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#endif // LLVM_XRAY_FDRRECORDS_H
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