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  1. //===- InfoStreamBuilder.h - PDB Info Stream Creation -----------*- 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 LLVM_DEBUGINFO_PDB_NATIVE_INFOSTREAMBUILDER_H
  10. #define LLVM_DEBUGINFO_PDB_NATIVE_INFOSTREAMBUILDER_H
  11.  
  12. #include "llvm/Support/Error.h"
  13.  
  14. #include "llvm/DebugInfo/CodeView/GUID.h"
  15. #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
  16.  
  17. namespace llvm {
  18. class WritableBinaryStreamRef;
  19.  
  20. namespace msf {
  21. class MSFBuilder;
  22. struct MSFLayout;
  23. }
  24. namespace pdb {
  25. class NamedStreamMap;
  26.  
  27. class InfoStreamBuilder {
  28. public:
  29.   InfoStreamBuilder(msf::MSFBuilder &Msf, NamedStreamMap &NamedStreams);
  30.   InfoStreamBuilder(const InfoStreamBuilder &) = delete;
  31.   InfoStreamBuilder &operator=(const InfoStreamBuilder &) = delete;
  32.  
  33.   void setVersion(PdbRaw_ImplVer V);
  34.   void addFeature(PdbRaw_FeatureSig Sig);
  35.  
  36.   // If this is true, the PDB contents are hashed and this hash is used as
  37.   // PDB GUID and as Signature. The age is always 1.
  38.   void setHashPDBContentsToGUID(bool B);
  39.  
  40.   // These only have an effect if hashPDBContentsToGUID() is false.
  41.   void setSignature(uint32_t S);
  42.   void setAge(uint32_t A);
  43.   void setGuid(codeview::GUID G);
  44.  
  45.   bool hashPDBContentsToGUID() const { return HashPDBContentsToGUID; }
  46.   uint32_t getAge() const { return Age; }
  47.   codeview::GUID getGuid() const { return Guid; }
  48.   std::optional<uint32_t> getSignature() const { return Signature; }
  49.  
  50.   uint32_t finalize();
  51.  
  52.   Error finalizeMsfLayout();
  53.  
  54.   Error commit(const msf::MSFLayout &Layout,
  55.                WritableBinaryStreamRef Buffer) const;
  56.  
  57. private:
  58.   msf::MSFBuilder &Msf;
  59.  
  60.   std::vector<PdbRaw_FeatureSig> Features;
  61.   PdbRaw_ImplVer Ver;
  62.   uint32_t Age;
  63.   std::optional<uint32_t> Signature;
  64.   codeview::GUID Guid;
  65.  
  66.   bool HashPDBContentsToGUID = false;
  67.  
  68.   NamedStreamMap &NamedStreams;
  69. };
  70. } // namespace pdb
  71. }
  72.  
  73. #endif
  74.