RD->bases_begin()->getType()->getAsCXXRecordDecl());
}
-void CodeGenFunction::EmitVTablePtrCheckForCall(const CXXMethodDecl *MD,
+void CodeGenFunction::EmitBitSetCodeForVCall(const CXXRecordDecl *RD,
+ llvm::Value *VTable,
+ SourceLocation Loc) {
+ if (CGM.getCodeGenOpts().WholeProgramVTables &&
+ !CGM.IsBitSetBlacklistedRecord(RD)) {
+ llvm::Metadata *MD =
+ CGM.CreateMetadataIdentifierForType(QualType(RD->getTypeForDecl(), 0));
+ llvm::Value *BitSetName =
+ llvm::MetadataAsValue::get(CGM.getLLVMContext(), MD);
+
+ llvm::Value *CastedVTable = Builder.CreateBitCast(VTable, Int8PtrTy);
+ llvm::Value *BitSetTest =
+ Builder.CreateCall(CGM.getIntrinsic(llvm::Intrinsic::bitset_test),
+ {CastedVTable, BitSetName});
+ Builder.CreateCall(CGM.getIntrinsic(llvm::Intrinsic::assume), BitSetTest);
+ }
+
+ if (SanOpts.has(SanitizerKind::CFIVCall))
+ EmitVTablePtrCheckForCall(RD, VTable, CodeGenFunction::CFITCK_VCall, Loc);
+}
+
+void CodeGenFunction::EmitVTablePtrCheckForCall(const CXXRecordDecl *RD,
llvm::Value *VTable,
CFITypeCheckKind TCK,
SourceLocation Loc) {
- const CXXRecordDecl *ClassDecl = MD->getParent();
if (!SanOpts.has(SanitizerKind::CFICastStrict))
- ClassDecl = LeastDerivedClassWithSameLayout(ClassDecl);
+ RD = LeastDerivedClassWithSameLayout(RD);
- EmitVTablePtrCheck(ClassDecl, VTable, TCK, Loc);
+ EmitVTablePtrCheck(RD, VTable, TCK, Loc);
}
void CodeGenFunction::EmitVTablePtrCheckForCast(QualType T,
llvm::Value *VTable,
CFITypeCheckKind TCK,
SourceLocation Loc) {
- if (CGM.IsCFIBlacklistedRecord(RD))
+ if (CGM.IsBitSetBlacklistedRecord(RD))
return;
SanitizerScope SanScope(this);