lib/dfsan/dfsan.h

   1 //===-- dfsan.h -------------------------------------------------*- C++ -*-===//
   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 file is a part of DataFlowSanitizer.
  11 //
  12 // Private DFSan header.
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef DFSAN_H
  16 #define DFSAN_H
  17
  18 #include "sanitizer/dfsan_interface.h"
  19
  20 namespace __dfsan {
  21
  22 void InitializeInterceptors();
  23
  24 inline dfsan_label *shadow_for(void *ptr) {
  25   return (dfsan_label *) ((((uintptr_t) ptr) & ~0x700000000000) << 1);
  26 }
  27
  28 inline const dfsan_label *shadow_for(const void *ptr) {
  29   return shadow_for(const_cast<void *>(ptr));
  30 }
  31
  32 struct Flags {
  33   // Whether to warn on unimplemented functions.
  34   bool warn_unimplemented;
  35   // Whether to warn on non-zero labels.
  36   bool warn_nonzero_labels;
  37 };
  38
  39 extern Flags flags_data;
  40 inline Flags &flags() {
  41   return flags_data;
  42 }
  43
  44 }  // namespace __dfsan
  45
  46 #endif  // DFSAN_H