1 | //===- TpiStreamBuilder.h - PDB Tpi Stream Creation -------------*- C++ -*-===// |
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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_TPISTREAMBUILDER_H |
10 | #define LLVM_DEBUGINFO_PDB_NATIVE_TPISTREAMBUILDER_H |
11 | |
12 | #include "llvm/DebugInfo/CodeView/CVRecord.h" |
13 | #include "llvm/DebugInfo/CodeView/TypeIndex.h" |
14 | #include "llvm/DebugInfo/PDB/Native/RawConstants.h" |
15 | #include "llvm/Support/Allocator.h" |
16 | #include "llvm/Support/BinaryStreamRef.h" |
17 | #include "llvm/Support/Error.h" |
18 | |
19 | #include <vector> |
20 | |
21 | namespace llvm { |
22 | class BinaryByteStream; |
23 | template <typename T> struct BinaryItemTraits; |
24 | |
25 | template <> struct BinaryItemTraits<llvm::codeview::CVType> { |
26 | static size_t length(const codeview::CVType &Item) { return Item.length(); } |
27 | static ArrayRef<uint8_t> bytes(const codeview::CVType &Item) { |
28 | return Item.data(); |
29 | } |
30 | }; |
31 | |
32 | namespace msf { |
33 | class MSFBuilder; |
34 | struct MSFLayout; |
35 | } |
36 | namespace pdb { |
37 | struct TpiStreamHeader; |
38 | |
39 | class TpiStreamBuilder { |
40 | public: |
41 | explicit TpiStreamBuilder(msf::MSFBuilder &Msf, uint32_t StreamIdx); |
42 | ~TpiStreamBuilder(); |
43 | |
44 | TpiStreamBuilder(const TpiStreamBuilder &) = delete; |
45 | TpiStreamBuilder &operator=(const TpiStreamBuilder &) = delete; |
46 | |
47 | void setVersionHeader(PdbRaw_TpiVer Version); |
48 | void addTypeRecord(ArrayRef<uint8_t> Type, std::optional<uint32_t> Hash); |
49 | void addTypeRecords(ArrayRef<uint8_t> Types, ArrayRef<uint16_t> Sizes, |
50 | ArrayRef<uint32_t> Hashes); |
51 | |
52 | Error finalizeMsfLayout(); |
53 | |
54 | uint32_t getRecordCount() const { return TypeRecordCount; } |
55 | |
56 | Error commit(const msf::MSFLayout &Layout, WritableBinaryStreamRef Buffer); |
57 | |
58 | uint32_t calculateSerializedLength(); |
59 | |
60 | private: |
61 | void updateTypeIndexOffsets(ArrayRef<uint16_t> Sizes); |
62 | |
63 | uint32_t calculateHashBufferSize() const; |
64 | uint32_t calculateIndexOffsetSize() const; |
65 | Error finalize(); |
66 | |
67 | msf::MSFBuilder &Msf; |
68 | BumpPtrAllocator &Allocator; |
69 | |
70 | uint32_t TypeRecordCount = 0; |
71 | size_t TypeRecordBytes = 0; |
72 | |
73 | PdbRaw_TpiVer VerHeader = PdbRaw_TpiVer::PdbTpiV80; |
74 | std::vector<ArrayRef<uint8_t>> TypeRecBuffers; |
75 | std::vector<uint32_t> TypeHashes; |
76 | std::vector<codeview::TypeIndexOffset> TypeIndexOffsets; |
77 | uint32_t HashStreamIndex = kInvalidStreamIndex; |
78 | std::unique_ptr<BinaryByteStream> HashValueStream; |
79 | |
80 | const TpiStreamHeader *Header; |
81 | uint32_t Idx; |
82 | }; |
83 | } // namespace pdb |
84 | } |
85 | |
86 | #endif |
87 |