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1 //===- DbiModuleDescriptorBuilder.h - PDB module information ----*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_DEBUGINFO_PDB_RAW_DBIMODULEDESCRIPTORBUILDER_H
11 #define LLVM_DEBUGINFO_PDB_RAW_DBIMODULEDESCRIPTORBUILDER_H
12 
13 #include "llvm/ADT/StringRef.h"
14 #include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
15 #include "llvm/DebugInfo/CodeView/DebugInlineeLinesSubsection.h"
16 #include "llvm/DebugInfo/CodeView/DebugLinesSubsection.h"
17 #include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
18 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
19 #include "llvm/DebugInfo/PDB/Native/RawTypes.h"
20 #include "llvm/Support/Error.h"
21 #include <cstdint>
22 #include <string>
23 #include <vector>
24 
25 namespace llvm {
26 class BinaryStreamWriter;
27 
28 namespace codeview {
29 class DebugSubsectionRecordBuilder;
30 }
31 
32 namespace msf {
33 class MSFBuilder;
34 struct MSFLayout;
35 }
36 namespace pdb {
37 
38 class DbiModuleDescriptorBuilder {
39   friend class DbiStreamBuilder;
40 
41 public:
42   DbiModuleDescriptorBuilder(StringRef ModuleName, uint32_t ModIndex,
43                              msf::MSFBuilder &Msf);
44   ~DbiModuleDescriptorBuilder();
45 
46   DbiModuleDescriptorBuilder(const DbiModuleDescriptorBuilder &) = delete;
47   DbiModuleDescriptorBuilder &
48   operator=(const DbiModuleDescriptorBuilder &) = delete;
49 
50   void setPdbFilePathNI(uint32_t NI);
51   void setObjFileName(StringRef Name);
52   void setFirstSectionContrib(const SectionContrib &SC);
53   void addSymbol(codeview::CVSymbol Symbol);
54 
55   void
56   addDebugSubsection(std::shared_ptr<codeview::DebugSubsection> Subsection);
57 
58   void
59   addDebugSubsection(const codeview::DebugSubsectionRecord &SubsectionContents);
60 
61   uint16_t getStreamIndex() const;
getModuleName()62   StringRef getModuleName() const { return ModuleName; }
getObjFileName()63   StringRef getObjFileName() const { return ObjFileName; }
64 
getModuleIndex()65   unsigned getModuleIndex() const { return Layout.Mod; }
66 
source_files()67   ArrayRef<std::string> source_files() const {
68     return makeArrayRef(SourceFiles);
69   }
70 
71   uint32_t calculateSerializedLength() const;
72 
73   /// Return the offset within the module symbol stream of the next symbol
74   /// record passed to addSymbol. Add four to account for the signature.
getNextSymbolOffset()75   uint32_t getNextSymbolOffset() const { return SymbolByteSize + 4; }
76 
77   void finalize();
78   Error finalizeMsfLayout();
79 
80   Error commit(BinaryStreamWriter &ModiWriter, const msf::MSFLayout &MsfLayout,
81                WritableBinaryStreamRef MsfBuffer);
82 
83 private:
84   uint32_t calculateC13DebugInfoSize() const;
85 
86   void addSourceFile(StringRef Path);
87   msf::MSFBuilder &MSF;
88 
89   uint32_t SymbolByteSize = 0;
90   uint32_t PdbFilePathNI = 0;
91   std::string ModuleName;
92   std::string ObjFileName;
93   std::vector<std::string> SourceFiles;
94   std::vector<codeview::CVSymbol> Symbols;
95 
96   std::vector<std::unique_ptr<codeview::DebugSubsectionRecordBuilder>>
97       C13Builders;
98 
99   ModuleInfoHeader Layout;
100 };
101 
102 } // end namespace pdb
103 
104 } // end namespace llvm
105 
106 #endif // LLVM_DEBUGINFO_PDB_RAW_DBIMODULEDESCRIPTORBUILDER_H
107