compiler-rt/lib/fuzzer/dataflow/DataFlow.h

   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.
  19 struct 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
  26 extern CallbackData __dft;
  27
  28 enum {
  29   PCFLAG_FUNC_ENTRY = 1,
  30 };
  31
  32 #endif  // __LIBFUZZER_DATAFLOW_H