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2f7af9b01c
This updates all libraries and tools in LLVM Core to use 64-bit offsets which directly or indirectly come to DataExtractor. Differential Revision: https://reviews.llvm.org/D65638 llvm-svn: 368014
120 lines
3.7 KiB
C++
120 lines
3.7 KiB
C++
//===- xray-fdr-dump.cpp: XRay FDR Trace Dump Tool ------------------------===//
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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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// Implements the FDR trace dumping tool, using the libraries for handling FDR
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// mode traces specifically.
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//
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//===----------------------------------------------------------------------===//
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#include "xray-registry.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/XRay/BlockIndexer.h"
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#include "llvm/XRay/BlockPrinter.h"
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#include "llvm/XRay/BlockVerifier.h"
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#include "llvm/XRay/FDRRecordConsumer.h"
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#include "llvm/XRay/FDRRecordProducer.h"
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#include "llvm/XRay/FDRRecords.h"
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#include "llvm/XRay/FileHeaderReader.h"
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#include "llvm/XRay/RecordPrinter.h"
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using namespace llvm;
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using namespace xray;
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static cl::SubCommand Dump("fdr-dump", "FDR Trace Dump");
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static cl::opt<std::string> DumpInput(cl::Positional,
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cl::desc("<xray fdr mode log>"),
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cl::Required, cl::sub(Dump));
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static cl::opt<bool> DumpVerify("verify",
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cl::desc("verify structure of the log"),
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cl::init(false), cl::sub(Dump));
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static CommandRegistration Unused(&Dump, []() -> Error {
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// Open the file provided.
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auto FDOrErr = sys::fs::openNativeFileForRead(DumpInput);
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if (!FDOrErr)
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return FDOrErr.takeError();
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uint64_t FileSize;
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if (auto EC = sys::fs::file_size(DumpInput, FileSize))
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return createStringError(EC, "Failed to get file size for '%s'.",
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DumpInput.c_str());
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std::error_code EC;
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sys::fs::mapped_file_region MappedFile(
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*FDOrErr, sys::fs::mapped_file_region::mapmode::readonly, FileSize, 0,
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EC);
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sys::fs::closeFile(*FDOrErr);
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DataExtractor DE(StringRef(MappedFile.data(), MappedFile.size()), true, 8);
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uint64_t OffsetPtr = 0;
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auto FileHeaderOrError = readBinaryFormatHeader(DE, OffsetPtr);
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if (!FileHeaderOrError)
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return FileHeaderOrError.takeError();
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auto &H = FileHeaderOrError.get();
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FileBasedRecordProducer P(H, DE, OffsetPtr);
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RecordPrinter RP(outs(), "\n");
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if (!DumpVerify) {
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PipelineConsumer C({&RP});
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while (DE.isValidOffsetForDataOfSize(OffsetPtr, 1)) {
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auto R = P.produce();
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if (!R)
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return R.takeError();
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if (auto E = C.consume(std::move(R.get())))
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return E;
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}
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return Error::success();
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}
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BlockPrinter BP(outs(), RP);
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std::vector<std::unique_ptr<Record>> Records;
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LogBuilderConsumer C(Records);
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while (DE.isValidOffsetForDataOfSize(OffsetPtr, 1)) {
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auto R = P.produce();
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if (!R) {
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// Print records we've found so far.
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for (auto &Ptr : Records)
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if (auto E = Ptr->apply(RP))
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return joinErrors(std::move(E), R.takeError());
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return R.takeError();
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}
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if (auto E = C.consume(std::move(R.get())))
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return E;
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}
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// Once we have a trace, we then index the blocks.
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BlockIndexer::Index Index;
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BlockIndexer BI(Index);
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for (auto &Ptr : Records)
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if (auto E = Ptr->apply(BI))
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return E;
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if (auto E = BI.flush())
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return E;
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// Then we validate while printing each block.
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BlockVerifier BV;
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for (auto ProcessThreadBlocks : Index) {
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auto &Blocks = ProcessThreadBlocks.second;
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for (auto &B : Blocks) {
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for (auto *R : B.Records) {
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if (auto E = R->apply(BV))
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return E;
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if (auto E = R->apply(BP))
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return E;
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}
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BV.reset();
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BP.reset();
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}
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}
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outs().flush();
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return Error::success();
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});
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