1 //===-- ubsan_handlers_cxx.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 // Entry points to the runtime library for Clang's undefined behavior sanitizer, 10 // for C++-specific checks. This code is not linked into C binaries. 11 // 12 //===----------------------------------------------------------------------===// 13 #ifndef UBSAN_HANDLERS_CXX_H 14 #define UBSAN_HANDLERS_CXX_H 15 16 #include "ubsan_value.h" 17 18 namespace __ubsan { 19 20 struct DynamicTypeCacheMissData { 21 SourceLocation Loc; 22 const TypeDescriptor &Type; 23 void *TypeInfo; 24 unsigned char TypeCheckKind; 25 }; 26 27 /// \brief Handle a runtime type check failure, caused by an incorrect vptr. 28 /// When this handler is called, all we know is that the type was not in the 29 /// cache; this does not necessarily imply the existence of a bug. 30 extern "C" SANITIZER_INTERFACE_ATTRIBUTE 31 void __ubsan_handle_dynamic_type_cache_miss( 32 DynamicTypeCacheMissData *Data, ValueHandle Pointer, ValueHandle Hash); 33 extern "C" SANITIZER_INTERFACE_ATTRIBUTE 34 void __ubsan_handle_dynamic_type_cache_miss_abort( 35 DynamicTypeCacheMissData *Data, ValueHandle Pointer, ValueHandle Hash); 36 37 struct FunctionTypeMismatchData { 38 SourceLocation Loc; 39 const TypeDescriptor &Type; 40 }; 41 42 extern "C" SANITIZER_INTERFACE_ATTRIBUTE void 43 __ubsan_handle_function_type_mismatch_v1(FunctionTypeMismatchData *Data, 44 ValueHandle Val, 45 ValueHandle calleeRTTI, 46 ValueHandle fnRTTI); 47 extern "C" SANITIZER_INTERFACE_ATTRIBUTE void 48 __ubsan_handle_function_type_mismatch_v1_abort(FunctionTypeMismatchData *Data, 49 ValueHandle Val, 50 ValueHandle calleeRTTI, 51 ValueHandle fnRTTI); 52 } 53 54 #endif // UBSAN_HANDLERS_H 55