1 | //===- DebugCrossImpSubsection.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 LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSIMPSUBSECTION_H |
10 | #define LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSIMPSUBSECTION_H |
11 | |
12 | #include "llvm/ADT/StringMap.h" |
13 | #include "llvm/ADT/StringRef.h" |
14 | #include "llvm/DebugInfo/CodeView/CodeView.h" |
15 | #include "llvm/DebugInfo/CodeView/DebugSubsection.h" |
16 | #include "llvm/Support/BinaryStreamArray.h" |
17 | #include "llvm/Support/BinaryStreamRef.h" |
18 | #include "llvm/Support/Endian.h" |
19 | #include "llvm/Support/Error.h" |
20 | #include <cstdint> |
21 | #include <vector> |
22 | |
23 | namespace llvm { |
24 | class BinaryStreamReader; |
25 | class BinaryStreamWriter; |
26 | |
27 | namespace codeview { |
28 | |
29 | struct CrossModuleImportItem { |
30 | const CrossModuleImport *Header = nullptr; |
31 | FixedStreamArray<support::ulittle32_t> Imports; |
32 | }; |
33 | |
34 | } // end namespace codeview |
35 | |
36 | template <> struct VarStreamArrayExtractor<codeview::CrossModuleImportItem> { |
37 | public: |
38 | using ContextType = void; |
39 | |
40 | Error operator()(BinaryStreamRef Stream, uint32_t &Len, |
41 | codeview::CrossModuleImportItem &Item); |
42 | }; |
43 | |
44 | namespace codeview { |
45 | |
46 | class DebugStringTableSubsection; |
47 | |
48 | class DebugCrossModuleImportsSubsectionRef final : public DebugSubsectionRef { |
49 | using ReferenceArray = VarStreamArray<CrossModuleImportItem>; |
50 | using Iterator = ReferenceArray::Iterator; |
51 | |
52 | public: |
53 | DebugCrossModuleImportsSubsectionRef() |
54 | : DebugSubsectionRef(DebugSubsectionKind::CrossScopeImports) {} |
55 | |
56 | static bool classof(const DebugSubsectionRef *S) { |
57 | return S->kind() == DebugSubsectionKind::CrossScopeImports; |
58 | } |
59 | |
60 | Error initialize(BinaryStreamReader Reader); |
61 | Error initialize(BinaryStreamRef Stream); |
62 | |
63 | Iterator begin() const { return References.begin(); } |
64 | Iterator end() const { return References.end(); } |
65 | |
66 | private: |
67 | ReferenceArray References; |
68 | }; |
69 | |
70 | class DebugCrossModuleImportsSubsection final : public DebugSubsection { |
71 | public: |
72 | explicit DebugCrossModuleImportsSubsection( |
73 | DebugStringTableSubsection &Strings) |
74 | : DebugSubsection(DebugSubsectionKind::CrossScopeImports), |
75 | Strings(Strings) {} |
76 | |
77 | static bool classof(const DebugSubsection *S) { |
78 | return S->kind() == DebugSubsectionKind::CrossScopeImports; |
79 | } |
80 | |
81 | void addImport(StringRef Module, uint32_t ImportId); |
82 | |
83 | uint32_t calculateSerializedSize() const override; |
84 | Error commit(BinaryStreamWriter &Writer) const override; |
85 | |
86 | private: |
87 | DebugStringTableSubsection &Strings; |
88 | StringMap<std::vector<support::ulittle32_t>> Mappings; |
89 | }; |
90 | |
91 | } // end namespace codeview |
92 | |
93 | } // end namespace llvm |
94 | |
95 | #endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSIMPSUBSECTION_H |
96 |