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d9e9a38395
Summary: This change updates the version number for FDR logs to 5, and update the trace processing to support changes in the custom event records. In the runtime, since we're already writing down the record preamble to handle CPU migrations and TSC wraparound, we can use the same TSC delta encoding in the custom event and typed event records that we use in function event records. We do the same change to typed events (which were unsupported before this change in the trace processing) which now show up in the trace. Future changes should increase our testing coverage to make custom and typed events as first class entities in the FDR mode log processing tools. This change is also a good example of how we end up supporting new record types in the FDR mode implementation. This shows the places where new record types are added and supported. Depends on D54139. Reviewers: mboerger Subscribers: hiraditya, arphaman, jfb, llvm-commits Differential Revision: https://reviews.llvm.org/D54140 llvm-svn: 346293
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
//===- BlockIndexer.h - FDR Block Indexing Visitor ------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// An implementation of the RecordVisitor which generates a mapping between a
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// thread and a range of records representing a block.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_XRAY_BLOCKINDEXER_H_
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#define LLVM_LIB_XRAY_BLOCKINDEXER_H_
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/XRay/FDRRecords.h"
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#include <cstdint>
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#include <vector>
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namespace llvm {
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namespace xray {
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// The BlockIndexer will gather all related records associated with a
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// process+thread and group them by 'Block'.
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class BlockIndexer : public RecordVisitor {
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public:
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struct Block {
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uint64_t ProcessID;
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int32_t ThreadID;
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WallclockRecord *WallclockTime;
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std::vector<Record *> Records;
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};
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// This maps the process + thread combination to a sequence of blocks.
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using Index = DenseMap<std::pair<uint64_t, int32_t>, std::vector<Block>>;
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private:
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Index &Indices;
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Block CurrentBlock{0, 0, nullptr, {}};
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public:
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explicit BlockIndexer(Index &I) : RecordVisitor(), Indices(I) {}
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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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/// The flush() function will clear out the current state of the visitor, to
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/// allow for explicitly flushing a block's records to the currently
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/// recognized thread and process combination.
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Error flush();
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};
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} // namespace xray
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} // namespace llvm
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#endif // LLVM_LIB_XRAY_BLOCKINDEXER_H_
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