DebugInfo/CodeView/DebugCrossExSubsection.h

0001 //===- DebugCrossExSubsection.h ---------------------------------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H
0010 #define LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H
0011
0012 #include "llvm/DebugInfo/CodeView/CodeView.h"
0013 #include "llvm/DebugInfo/CodeView/DebugSubsection.h"
0014 #include "llvm/Support/BinaryStreamArray.h"
0015 #include "llvm/Support/BinaryStreamRef.h"
0016 #include "llvm/Support/Error.h"
0017 #include <cstdint>
0018 #include <map>
0019
0020 namespace llvm {
0021 class BinaryStreamReader;
0022 class BinaryStreamWriter;
0023 namespace codeview {
0024
0025 class DebugCrossModuleExportsSubsectionRef final : public DebugSubsectionRef {
0026   using ReferenceArray = FixedStreamArray<CrossModuleExport>;
0027   using Iterator = ReferenceArray::Iterator;
0028
0029 public:
0030   DebugCrossModuleExportsSubsectionRef()
0031       : DebugSubsectionRef(DebugSubsectionKind::CrossScopeExports) {}
0032
0033   static bool classof(const DebugSubsectionRef *S) {
0034     return S->kind() == DebugSubsectionKind::CrossScopeExports;
0035   }
0036
0037   Error initialize(BinaryStreamReader Reader);
0038   Error initialize(BinaryStreamRef Stream);
0039
0040   Iterator begin() const { return References.begin(); }
0041   Iterator end() const { return References.end(); }
0042
0043 private:
0044   FixedStreamArray<CrossModuleExport> References;
0045 };
0046
0047 class DebugCrossModuleExportsSubsection final : public DebugSubsection {
0048 public:
0049   DebugCrossModuleExportsSubsection()
0050       : DebugSubsection(DebugSubsectionKind::CrossScopeExports) {}
0051
0052   static bool classof(const DebugSubsection *S) {
0053     return S->kind() == DebugSubsectionKind::CrossScopeExports;
0054   }
0055
0056   void addMapping(uint32_t Local, uint32_t Global);
0057
0058   uint32_t calculateSerializedSize() const override;
0059   Error commit(BinaryStreamWriter &Writer) const override;
0060
0061 private:
0062   std::map<uint32_t, uint32_t> Mappings;
0063 };
0064
0065 } // end namespace codeview
0066 } // end namespace llvm
0067
0068 #endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H