1 //===- DebugCrossExSubsection.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_DEBUGCROSSEXSUBSECTION_H
10 #define LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H
11 
12 #include "llvm/DebugInfo/CodeView/CodeView.h"
13 #include "llvm/DebugInfo/CodeView/DebugSubsection.h"
14 #include "llvm/Support/BinaryStreamArray.h"
15 #include "llvm/Support/BinaryStreamReader.h"
16 #include "llvm/Support/BinaryStreamRef.h"
17 #include "llvm/Support/Error.h"
18 #include <cstdint>
19 #include <map>
20 
21 namespace llvm {
22 namespace codeview {
23 
24 class DebugCrossModuleExportsSubsectionRef final : public DebugSubsectionRef {
25   using ReferenceArray = FixedStreamArray<CrossModuleExport>;
26   using Iterator = ReferenceArray::Iterator;
27 
28 public:
DebugCrossModuleExportsSubsectionRef()29   DebugCrossModuleExportsSubsectionRef()
30       : DebugSubsectionRef(DebugSubsectionKind::CrossScopeExports) {}
31 
classof(const DebugSubsectionRef * S)32   static bool classof(const DebugSubsectionRef *S) {
33     return S->kind() == DebugSubsectionKind::CrossScopeExports;
34   }
35 
36   Error initialize(BinaryStreamReader Reader);
37   Error initialize(BinaryStreamRef Stream);
38 
begin()39   Iterator begin() const { return References.begin(); }
end()40   Iterator end() const { return References.end(); }
41 
42 private:
43   FixedStreamArray<CrossModuleExport> References;
44 };
45 
46 class DebugCrossModuleExportsSubsection final : public DebugSubsection {
47 public:
DebugCrossModuleExportsSubsection()48   DebugCrossModuleExportsSubsection()
49       : DebugSubsection(DebugSubsectionKind::CrossScopeExports) {}
50 
classof(const DebugSubsection * S)51   static bool classof(const DebugSubsection *S) {
52     return S->kind() == DebugSubsectionKind::CrossScopeExports;
53   }
54 
55   void addMapping(uint32_t Local, uint32_t Global);
56 
57   uint32_t calculateSerializedSize() const override;
58   Error commit(BinaryStreamWriter &Writer) const override;
59 
60 private:
61   std::map<uint32_t, uint32_t> Mappings;
62 };
63 
64 } // end namespace codeview
65 } // end namespace llvm
66 
67 #endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H
68