1/*===- DataFlow.h - a standalone DataFlow trace                     -------===//
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// Internal header file to connect DataFlow.cpp and DataFlowCallbacks.cpp.
9//===----------------------------------------------------------------------===*/
10
11#ifndef __LIBFUZZER_DATAFLOW_H
12#define __LIBFUZZER_DATAFLOW_H
13
14#include <cstddef>
15#include <cstdint>
16#include <sanitizer/dfsan_interface.h>
17
18// This data is shared between DataFlowCallbacks.cpp and DataFlow.cpp.
19struct CallbackData {
20  size_t NumFuncs, NumGuards;
21  const uintptr_t *PCsBeg, *PCsEnd;
22  dfsan_label *FuncLabels;  // Array of NumFuncs elements.
23  bool *BBExecuted;         // Array of NumGuards elements.
24};
25
26extern CallbackData __dft;
27
28enum {
29  PCFLAG_FUNC_ENTRY = 1,
30};
31
32#endif  // __LIBFUZZER_DATAFLOW_H
33