1 //===- InfoStream.h - PDB Info Stream (Stream 1) Access ---------*- 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_RAW_PDBINFOSTREAM_H
10 #define LLVM_DEBUGINFO_PDB_RAW_PDBINFOSTREAM_H
11 
12 #include "llvm/ADT/BitmaskEnum.h"
13 #include "llvm/ADT/StringMap.h"
14 #include "llvm/DebugInfo/CodeView/GUID.h"
15 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
16 #include "llvm/DebugInfo/PDB/Native/NamedStreamMap.h"
17 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
18 #include "llvm/DebugInfo/PDB/PDBTypes.h"
19 
20 #include "llvm/Support/Endian.h"
21 #include "llvm/Support/Error.h"
22 
23 namespace llvm {
24 namespace pdb {
25 class InfoStreamBuilder;
26 class PDBFile;
27 
28 class InfoStream {
29   friend class InfoStreamBuilder;
30 
31 public:
32   InfoStream(std::unique_ptr<BinaryStream> Stream);
33 
34   Error reload();
35 
36   uint32_t getStreamSize() const;
37 
38   const InfoStreamHeader *getHeader() const { return Header; }
39 
40   bool containsIdStream() const;
41   PdbRaw_ImplVer getVersion() const;
42   uint32_t getSignature() const;
43   uint32_t getAge() const;
44   codeview::GUID getGuid() const;
45   uint32_t getNamedStreamMapByteSize() const;
46 
47   PdbRaw_Features getFeatures() const;
48   ArrayRef<PdbRaw_FeatureSig> getFeatureSignatures() const;
49 
50   const NamedStreamMap &getNamedStreams() const;
51 
52   BinarySubstreamRef getNamedStreamsBuffer() const;
53 
54   Expected<uint32_t> getNamedStreamIndex(llvm::StringRef Name) const;
55   StringMap<uint32_t> named_streams() const;
56 
57 private:
58   std::unique_ptr<BinaryStream> Stream;
59 
60   const InfoStreamHeader *Header;
61 
62   BinarySubstreamRef SubNamedStreams;
63 
64   std::vector<PdbRaw_FeatureSig> FeatureSignatures;
65   PdbRaw_Features Features = PdbFeatureNone;
66 
67   uint32_t NamedStreamMapByteSize = 0;
68 
69   NamedStreamMap NamedStreams;
70 };
71 }
72 }
73 
74 #endif
75