llvm-project/compiler-rt/lib/dfsan/dfsan.h

//===-- dfsan.h -------------------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of DataFlowSanitizer.
//
// Private DFSan header.
//===----------------------------------------------------------------------===//

#ifndef DFSAN_H
#define DFSAN_H

#include "sanitizer/dfsan_interface.h"

namespace __dfsan {

void InitializeInterceptors();

inline dfsan_label *shadow_for(void *ptr) {
  return (dfsan_label *) ((((uintptr_t) ptr) & ~0x700000000000) << 1);
}

inline const dfsan_label *shadow_for(const void *ptr) {
  return shadow_for(const_cast<void *>(ptr));
}

struct Flags {
  // Whether to warn on unimplemented functions.
  bool warn_unimplemented;
  // Whether to warn on non-zero labels.
  bool warn_nonzero_labels;
};

extern Flags flags_data;
inline Flags &flags() {
  return flags_data;
}

}  // namespace __dfsan

#endif  // DFSAN_H