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MS ABI: Preliminary RTTI mangling 

Implement what we currently believe is the mangling scheme for RTTI
data.  Tests will be added in a later commit which actually generate
RTTI data.

llvm-svn: 208661
This commit is contained in:
David Majnemer 2014-05-13 00:44:44 +00:00
parent dd83691cc3
commit a96b7ee0bc
2 changed files with 86 additions and 14 deletions
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17
clang/include/clang/AST/Mangle.h
View File

@ -213,6 +213,23 @@ public:
virtual void mangleVirtualMemPtrThunk(const CXXMethodDecl *MD,
raw_ostream &) = 0;
virtual void mangleCXXRTTIBaseClassDescriptor(
const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath,
uint32_t NVOffset, uint32_t VBPtrOffset, uint32_t VBTableOffset,
uint32_t Flags, raw_ostream &Out) = 0;
virtual void mangleCXXRTTIBaseClassArray(const CXXRecordDecl *Derived,
raw_ostream &Out) = 0;
virtual void
mangleCXXRTTIClassHierarchyDescriptor(const CXXRecordDecl *Derived,
raw_ostream &Out) = 0;
virtual void mangleCXXRTTICompleteObjectLocator(const CXXRecordDecl *Derived,
uint32_t OffsetFromTop,
uint32_t VFPtrToVtordispDelta,
uint32_t Flags,
raw_ostream &Out) = 0;
static bool classof(const MangleContext *C) {
return C->getKind() == MK_Microsoft;
}

83
clang/lib/AST/MicrosoftMangle.cpp
View File

@ -110,8 +110,21 @@ public:
void mangleCXXVBTable(const CXXRecordDecl *Derived,
ArrayRef<const CXXRecordDecl *> BasePath,
raw_ostream &Out) override;
void mangleCXXRTTI(QualType T, raw_ostream &) override;
void mangleCXXRTTIName(QualType T, raw_ostream &) override;
void mangleCXXRTTI(QualType T, raw_ostream &Out) override;
void mangleCXXRTTIName(QualType T, raw_ostream &Out) override;
void mangleCXXRTTIBaseClassDescriptor(
const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath,
uint32_t NVOffset, uint32_t VBPtrOffset, uint32_t VBTableOffset,
uint32_t Flags, raw_ostream &Out) override;
void mangleCXXRTTIBaseClassArray(const CXXRecordDecl *Derived,
raw_ostream &Out) override;
void mangleCXXRTTIClassHierarchyDescriptor(const CXXRecordDecl *Derived,
raw_ostream &Out) override;
void mangleCXXRTTICompleteObjectLocator(const CXXRecordDecl *Derived,
uint32_t OffsetFromTop,
uint32_t VFPtrToVtordispDelta,
uint32_t Flags,
raw_ostream &Out) override;
void mangleTypeName(QualType T, raw_ostream &) override;
void mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type,
raw_ostream &) override;
@ -2231,20 +2244,62 @@ void MicrosoftMangleContextImpl::mangleCXXVBTable(
Mangler.getStream() << '@';
}
void MicrosoftMangleContextImpl::mangleCXXRTTI(QualType T, raw_ostream &) {
// FIXME: Give a location...
unsigned DiagID = getDiags().getCustomDiagID(DiagnosticsEngine::Error,
"cannot mangle RTTI descriptors for type %0 yet");
getDiags().Report(DiagID)
<< T.getBaseTypeIdentifier();
void MicrosoftMangleContextImpl::mangleCXXRTTI(QualType T, raw_ostream &Out) {
MicrosoftCXXNameMangler Mangler(*this, Out);
Mangler.getStream() << "\01??_R0";
Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result);
Mangler.getStream() << "@8";
}
void MicrosoftMangleContextImpl::mangleCXXRTTIName(QualType T, raw_ostream &) {
// FIXME: Give a location...
unsigned DiagID = getDiags().getCustomDiagID(DiagnosticsEngine::Error,
"cannot mangle the name of type %0 into RTTI descriptors yet");
getDiags().Report(DiagID)
<< T.getBaseTypeIdentifier();
void MicrosoftMangleContextImpl::mangleCXXRTTIName(QualType T,
raw_ostream &Out) {
MicrosoftCXXNameMangler Mangler(*this, Out);
Mangler.getStream() << '.';
Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result);
}
void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassDescriptor(
const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath,
uint32_t NVOffset, uint32_t VBPtrOffset, uint32_t VBTableOffset,
uint32_t Flags, raw_ostream &Out) {
MicrosoftCXXNameMangler Mangler(*this, Out);
Mangler.getStream() << "\01??_R1";
Mangler.mangleName(Derived);
for (const CXXRecordDecl *RD : BasePath)
Mangler.mangleName(RD);
Mangler.mangleNumber(NVOffset);
Mangler.mangleNumber(VBPtrOffset);
Mangler.mangleNumber(VBTableOffset);
Mangler.mangleNumber(Flags);
Mangler.getStream() << "@8";
}
void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassArray(
const CXXRecordDecl *Derived, raw_ostream &Out) {
MicrosoftCXXNameMangler Mangler(*this, Out);
Mangler.getStream() << "\01??_R2";
Mangler.mangleName(Derived);
Mangler.getStream() << "@8";
}
void MicrosoftMangleContextImpl::mangleCXXRTTIClassHierarchyDescriptor(
const CXXRecordDecl *Derived, raw_ostream &Out) {
MicrosoftCXXNameMangler Mangler(*this, Out);
Mangler.getStream() << "\01??_R3";
Mangler.mangleName(Derived);
Mangler.getStream() << "@8";
}
void MicrosoftMangleContextImpl::mangleCXXRTTICompleteObjectLocator(
const CXXRecordDecl *Derived, uint32_t OffsetFromTop,
uint32_t VFPtrToVtordispDelta, uint32_t Flags, raw_ostream &Out) {
MicrosoftCXXNameMangler Mangler(*this, Out);
Mangler.getStream() << "\01??_R4";
Mangler.mangleName(Derived);
Mangler.mangleNumber(Flags);
Mangler.mangleNumber(OffsetFromTop);
Mangler.mangleNumber(VFPtrToVtordispDelta);
Mangler.getStream() << "@8";
}
void MicrosoftMangleContextImpl::mangleTypeName(QualType T, raw_ostream &Out) {