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3df7615245
When investigating bugs in PDB generation, the first step is often to do the same link with link.exe and then compare PDBs. But comparing PDBs is hard because two completely different byte sequences can both be correct, so it hampers the investigation when you also have to spend time figuring out not just which bytes are different, but also if the difference is meaningful. This patch fixes a couple of cases related to string table emission, hash table emission, and the order in which we emit strings that makes more of our bytes the same as the bytes generated by MS PDBs. Differential Revision: https://reviews.llvm.org/D44810 llvm-svn: 328348
108 lines
2.4 KiB
C++
108 lines
2.4 KiB
C++
//===- DumpOutputStyle.h -------------------------------------- *- C++ --*-===//
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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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#ifndef LLVM_TOOLS_LLVMPDBDUMP_DUMPOUTPUTSTYLE_H
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#define LLVM_TOOLS_LLVMPDBDUMP_DUMPOUTPUTSTYLE_H
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#include "LinePrinter.h"
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#include "OutputStyle.h"
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#include "StreamUtil.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
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#include <string>
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namespace llvm {
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class BitVector;
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namespace codeview {
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class LazyRandomTypeCollection;
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}
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namespace object {
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class COFFObjectFile;
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}
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namespace pdb {
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class GSIHashTable;
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class InputFile;
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struct StatCollection {
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struct Stat {
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Stat() {}
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Stat(uint32_t Count, uint32_t Size) : Count(Count), Size(Size) {}
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uint32_t Count = 0;
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uint32_t Size = 0;
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void update(uint32_t RecordSize) {
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++Count;
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Size += RecordSize;
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}
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};
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void update(uint32_t Kind, uint32_t RecordSize) {
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Totals.update(RecordSize);
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auto Iter = Individual.try_emplace(Kind, 1, RecordSize);
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if (!Iter.second)
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Iter.first->second.update(RecordSize);
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}
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Stat Totals;
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DenseMap<uint32_t, Stat> Individual;
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};
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class DumpOutputStyle : public OutputStyle {
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public:
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DumpOutputStyle(InputFile &File);
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Error dump() override;
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private:
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PDBFile &getPdb();
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object::COFFObjectFile &getObj();
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Error dumpFileSummary();
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Error dumpStreamSummary();
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Error dumpSymbolStats();
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Error dumpUdtStats();
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Error dumpNamedStreams();
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Error dumpStringTable();
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Error dumpStringTableFromPdb();
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Error dumpStringTableFromObj();
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Error dumpLines();
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Error dumpInlineeLines();
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Error dumpXmi();
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Error dumpXme();
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Error dumpTpiStream(uint32_t StreamIdx);
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Error dumpTypesFromObjectFile();
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Error dumpModules();
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Error dumpModuleFiles();
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Error dumpModuleSymsForPdb();
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Error dumpModuleSymsForObj();
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Error dumpGlobals();
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Error dumpPublics();
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Error dumpSymbolsFromGSI(const GSIHashTable &Table, bool HashExtras);
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Error dumpSectionHeaders();
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Error dumpSectionContribs();
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Error dumpSectionMap();
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void dumpSectionHeaders(StringRef Label, DbgHeaderType Type);
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InputFile &File;
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LinePrinter P;
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SmallVector<StreamInfo, 32> StreamPurposes;
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};
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} // namespace pdb
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} // namespace llvm
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#endif
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