lld/COFF/COFFLinkerContext.h

   1 //===- COFFLinkerContext.h --------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLD_COFF_COFFLINKERCONTEXT_H
  10 #define LLD_COFF_COFFLINKERCONTEXT_H
  11
  12 #include "Chunks.h"
  13 #include "Config.h"
  14 #include "DebugTypes.h"
  15 #include "Driver.h"
  16 #include "InputFiles.h"
  17 #include "SymbolTable.h"
  18 #include "Writer.h"
  19 #include "lld/Common/CommonLinkerContext.h"
  20 #include "lld/Common/Timer.h"
  21
  22 namespace lld::coff {
  23
  24 class COFFLinkerContext : public CommonLinkerContext {
  25 public:
  26   COFFLinkerContext();
  27   COFFLinkerContext(const COFFLinkerContext &) = delete;
  28   COFFLinkerContext &operator=(const COFFLinkerContext &) = delete;
  29   ~COFFLinkerContext() = default;
  30
  31   LinkerDriver driver;
  32   SymbolTable symtab;
  33   COFFOptTable optTable;
  34
  35   std::vector<ObjFile *> objFileInstances;
  36   std::map<std::string, PDBInputFile *> pdbInputFileInstances;
  37   std::vector<ImportFile *> importFileInstances;
  38   std::vector<BitcodeFile *> bitcodeFileInstances;
  39
  40   MergeChunk *mergeChunkInstances[Log2MaxSectionAlignment + 1] = {};
  41
  42   /// All sources of type information in the program.
  43   std::vector<TpiSource *> tpiSourceList;
  44
  45   void addTpiSource(TpiSource *tpi) { tpiSourceList.push_back(tpi); }
  46
  47   std::map<llvm::codeview::GUID, TpiSource *> typeServerSourceMappings;
  48   std::map<uint32_t, TpiSource *> precompSourceMappings;
  49
  50   /// List of all output sections. After output sections are finalized, this
  51   /// can be indexed by getOutputSection.
  52   std::vector<OutputSection *> outputSections;
  53
  54   OutputSection *getOutputSection(const Chunk *c) const {
  55     return c->osidx == 0 ? nullptr : outputSections[c->osidx - 1];
  56   }
  57
  58   // Fake sections for parsing bitcode files.
  59   FakeSection ltoTextSection;
  60   FakeSection ltoDataSection;
  61   FakeSectionChunk ltoTextSectionChunk;
  62   FakeSectionChunk ltoDataSectionChunk;
  63
  64   // All timers used in the COFF linker.
  65   Timer rootTimer;
  66   Timer inputFileTimer;
  67   Timer ltoTimer;
  68   Timer gcTimer;
  69   Timer icfTimer;
  70
  71   // Writer timers.
  72   Timer codeLayoutTimer;
  73   Timer outputCommitTimer;
  74   Timer totalMapTimer;
  75   Timer symbolGatherTimer;
  76   Timer symbolStringsTimer;
  77   Timer writeTimer;
  78
  79   // PDB timers.
  80   Timer totalPdbLinkTimer;
  81   Timer addObjectsTimer;
  82   Timer typeMergingTimer;
  83   Timer loadGHashTimer;
  84   Timer mergeGHashTimer;
  85   Timer symbolMergingTimer;
  86   Timer publicsLayoutTimer;
  87   Timer tpiStreamLayoutTimer;
  88   Timer diskCommitTimer;
  89
  90   Configuration config;
  91 };
  92
  93 } // namespace lld::coff
  94
  95 #endif