libsanitizer/ubsan/ubsan_handlers_cxx.h

   1 //===-- ubsan_handlers_cxx.h ------------------------------------*- C++ -*-===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // Entry points to the runtime library for Clang's undefined behavior sanitizer,
   9 // for C++-specific checks. This code is not linked into C binaries.
  10 //
  11 //===----------------------------------------------------------------------===//
  12 #ifndef UBSAN_HANDLERS_CXX_H
  13 #define UBSAN_HANDLERS_CXX_H
  14
  15 #include "ubsan_value.h"
  16
  17 namespace __ubsan {
  18
  19 struct DynamicTypeCacheMissData {
  20   SourceLocation Loc;
  21   const TypeDescriptor &Type;
  22   void *TypeInfo;
  23   unsigned char TypeCheckKind;
  24 };
  25
  26 /// \brief Handle a runtime type check failure, caused by an incorrect vptr.
  27 /// When this handler is called, all we know is that the type was not in the
  28 /// cache; this does not necessarily imply the existence of a bug.
  29 extern "C" SANITIZER_INTERFACE_ATTRIBUTE
  30 void __ubsan_handle_dynamic_type_cache_miss(
  31   DynamicTypeCacheMissData *Data, ValueHandle Pointer, ValueHandle Hash);
  32 extern "C" SANITIZER_INTERFACE_ATTRIBUTE
  33 void __ubsan_handle_dynamic_type_cache_miss_abort(
  34   DynamicTypeCacheMissData *Data, ValueHandle Pointer, ValueHandle Hash);
  35 }
  36
  37 #endif // UBSAN_HANDLERS_H