Charles Davis | c392664 | 2010-06-09 23:25:41 +0000 | [diff] [blame^] | 1 | //===--- MicrosoftCXXABI.cpp - Emit LLVM Code from ASTs for a Module ------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This provides C++ code generation targetting the Microsoft Visual C++ ABI. |
| 11 | // The class in this file generates structures that follow the Microsoft |
| 12 | // Visual C++ ABI, which is actually not very well documented at all outside |
| 13 | // of Microsoft. |
| 14 | // |
| 15 | //===----------------------------------------------------------------------===// |
| 16 | |
| 17 | #include "CGCXXABI.h" |
| 18 | #include "CodeGenModule.h" |
| 19 | #include "Mangle.h" |
| 20 | #include "clang/AST/ASTContext.h" |
| 21 | #include "clang/AST/Decl.h" |
| 22 | #include "clang/AST/DeclCXX.h" |
| 23 | #include "clang/AST/DeclTemplate.h" |
| 24 | #include "clang/AST/ExprCXX.h" |
| 25 | #include "CGVTables.h" |
| 26 | |
| 27 | using namespace clang; |
| 28 | using namespace CodeGen; |
| 29 | |
| 30 | namespace { |
| 31 | |
| 32 | /// MicrosoftMangleContext - Overrides the default MangleContext for the |
| 33 | /// Microsoft Visual C++ ABI. |
| 34 | class MicrosoftMangleContext : public MangleContext { |
| 35 | public: |
| 36 | MicrosoftMangleContext(ASTContext &Context, |
| 37 | Diagnostic &Diags) : MangleContext(Context, Diags) { } |
| 38 | virtual void mangleName(const NamedDecl *D, llvm::SmallVectorImpl<char> &); |
| 39 | virtual void mangleThunk(const CXXMethodDecl *MD, |
| 40 | const ThunkInfo &Thunk, |
| 41 | llvm::SmallVectorImpl<char> &); |
| 42 | virtual void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type, |
| 43 | const ThisAdjustment &ThisAdjustment, |
| 44 | llvm::SmallVectorImpl<char> &); |
| 45 | virtual void mangleGuardVariable(const VarDecl *D, |
| 46 | llvm::SmallVectorImpl<char> &); |
| 47 | virtual void mangleCXXVTable(const CXXRecordDecl *RD, |
| 48 | llvm::SmallVectorImpl<char> &); |
| 49 | virtual void mangleCXXVTT(const CXXRecordDecl *RD, |
| 50 | llvm::SmallVectorImpl<char> &); |
| 51 | virtual void mangleCXXCtorVTable(const CXXRecordDecl *RD, int64_t Offset, |
| 52 | const CXXRecordDecl *Type, |
| 53 | llvm::SmallVectorImpl<char> &); |
| 54 | virtual void mangleCXXRTTI(QualType T, llvm::SmallVectorImpl<char> &); |
| 55 | virtual void mangleCXXRTTIName(QualType T, llvm::SmallVectorImpl<char> &); |
| 56 | virtual void mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type, |
| 57 | llvm::SmallVectorImpl<char> &); |
| 58 | virtual void mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type, |
| 59 | llvm::SmallVectorImpl<char> &); |
| 60 | }; |
| 61 | |
| 62 | class MicrosoftCXXABI : public CXXABI { |
| 63 | MicrosoftMangleContext MangleCtx; |
| 64 | public: |
| 65 | MicrosoftCXXABI(CodeGenModule &CGM) |
| 66 | : MangleCtx(CGM.getContext(), CGM.getDiags()) {} |
| 67 | |
| 68 | MicrosoftMangleContext &getMangleContext() { |
| 69 | return MangleCtx; |
| 70 | } |
| 71 | }; |
| 72 | |
| 73 | } |
| 74 | |
| 75 | void MicrosoftMangleContext::mangleName(const NamedDecl *D, |
| 76 | llvm::SmallVectorImpl<char> &Name) { |
| 77 | assert(false && "Can't yet mangle names!"); |
| 78 | } |
| 79 | void MicrosoftMangleContext::mangleThunk(const CXXMethodDecl *MD, |
| 80 | const ThunkInfo &Thunk, |
| 81 | llvm::SmallVectorImpl<char> &) { |
| 82 | assert(false && "Can't yet mangle thunks!"); |
| 83 | } |
| 84 | void MicrosoftMangleContext::mangleCXXDtorThunk(const CXXDestructorDecl *DD, |
| 85 | CXXDtorType Type, |
| 86 | const ThisAdjustment &, |
| 87 | llvm::SmallVectorImpl<char> &) { |
| 88 | assert(false && "Can't yet mangle destructor thunks!"); |
| 89 | } |
| 90 | void MicrosoftMangleContext::mangleGuardVariable(const VarDecl *D, |
| 91 | llvm::SmallVectorImpl<char> &) { |
| 92 | assert(false && "Can't yet mangle guard variables!"); |
| 93 | } |
| 94 | void MicrosoftMangleContext::mangleCXXVTable(const CXXRecordDecl *RD, |
| 95 | llvm::SmallVectorImpl<char> &) { |
| 96 | assert(false && "Can't yet mangle virtual tables!"); |
| 97 | } |
| 98 | void MicrosoftMangleContext::mangleCXXVTT(const CXXRecordDecl *RD, |
| 99 | llvm::SmallVectorImpl<char> &) { |
| 100 | llvm_unreachable("The MS C++ ABI does not have virtual table tables!"); |
| 101 | } |
| 102 | void MicrosoftMangleContext::mangleCXXCtorVTable(const CXXRecordDecl *RD, |
| 103 | int64_t Offset, |
| 104 | const CXXRecordDecl *Type, |
| 105 | llvm::SmallVectorImpl<char> &) { |
| 106 | llvm_unreachable("The MS C++ ABI does not have constructor vtables!"); |
| 107 | } |
| 108 | void MicrosoftMangleContext::mangleCXXRTTI(QualType T, |
| 109 | llvm::SmallVectorImpl<char> &) { |
| 110 | assert(false && "Can't yet mangle RTTI!"); |
| 111 | } |
| 112 | void MicrosoftMangleContext::mangleCXXRTTIName(QualType T, |
| 113 | llvm::SmallVectorImpl<char> &) { |
| 114 | assert(false && "Can't yet mangle RTTI names!"); |
| 115 | } |
| 116 | void MicrosoftMangleContext::mangleCXXCtor(const CXXConstructorDecl *D, |
| 117 | CXXCtorType Type, |
| 118 | llvm::SmallVectorImpl<char> &) { |
| 119 | assert(false && "Can't yet mangle constructors!"); |
| 120 | } |
| 121 | void MicrosoftMangleContext::mangleCXXDtor(const CXXDestructorDecl *D, |
| 122 | CXXDtorType Type, |
| 123 | llvm::SmallVectorImpl<char> &) { |
| 124 | assert(false && "Can't yet mangle destructors!"); |
| 125 | } |
| 126 | |
| 127 | CXXABI *CreateMicrosoftCXXABI(CodeGenModule &CGM) { |
| 128 | return new MicrosoftCXXABI(CGM); |
| 129 | } |
| 130 | |