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1eb494baab
Summary:
It prints this on chromium browser_tests.exe.pdb:
Types
Total: 5647475 entries ( 371,897,512 bytes, 65.85 avg)
--------------------------------------------------------------------------
LF_CLASS: 397894 entries ( 119,537,780 bytes, 300.43 avg)
LF_STRUCTURE: 236351 entries ( 83,208,084 bytes, 352.05 avg)
LF_FIELDLIST: 291003 entries ( 66,087,920 bytes, 227.10 avg)
LF_MFUNCTION: 1884176 entries ( 52,756,928 bytes, 28.00 avg)
LF_POINTER: 1149030 entries ( 13,877,344 bytes, 12.08 avg)
LF_ARGLIST: 789980 entries ( 12,436,752 bytes, 15.74 avg)
LF_METHODLIST: 361498 entries ( 8,351,008 bytes, 23.10 avg)
LF_ENUM: 16069 entries ( 6,108,340 bytes, 380.13 avg)
LF_PROCEDURE: 269374 entries ( 4,309,984 bytes, 16.00 avg)
LF_MODIFIER: 235602 entries ( 2,827,224 bytes, 12.00 avg)
LF_UNION: 9131 entries ( 2,072,168 bytes, 226.94 avg)
LF_VFTABLE: 323 entries ( 207,784 bytes, 643.29 avg)
LF_ARRAY: 6639 entries ( 106,380 bytes, 16.02 avg)
LF_VTSHAPE: 126 entries ( 6,472 bytes, 51.37 avg)
LF_BITFIELD: 278 entries ( 3,336 bytes, 12.00 avg)
LF_LABEL: 1 entries ( 8 bytes, 8.00 avg)
The PDB is overall 1.9GB, so the LF_CLASS and LF_STRUCTURE declarations
account for about 10% of the overall file size. I was surprised to find
that on average LF_FIELDLIST records are short. Maybe this is because
there are many more types with short member lists than there are
instantiations with lots of members, like std::vector.
Reviewers: aganea, zturner
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59672
llvm-svn: 356813
123 lines
2.9 KiB
C++
123 lines
2.9 KiB
C++
//===- DumpOutputStyle.h -------------------------------------- *- C++ --*-===//
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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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#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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class TypeReferenceTracker;
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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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using KindAndStat = std::pair<uint32_t, Stat>;
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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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std::vector<KindAndStat> getStatsSortedBySize() const;
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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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~DumpOutputStyle() override;
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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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void printStreamNotValidForObj();
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void printStreamNotPresent(StringRef StreamName);
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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 dumpTypeStats();
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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 dumpFpo();
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Error dumpOldFpo(PDBFile &File);
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Error dumpNewFpo(PDBFile &File);
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Error dumpTpiStream(uint32_t StreamIdx);
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Error dumpTypesFromObjectFile();
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Error dumpTypeRefStats();
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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 dumpGSIRecords();
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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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std::unique_ptr<TypeReferenceTracker> RefTracker;
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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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