1  //===-- asan_flags.h -------------------------------------------*- C++ -*-===//
       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  //
       9  // This file is a part of AddressSanitizer, an address sanity checker.
      10  //
      11  // ASan runtime flags.
      12  //===----------------------------------------------------------------------===//
      13  
      14  #ifndef ASAN_FLAGS_H
      15  #define ASAN_FLAGS_H
      16  
      17  #include "sanitizer_common/sanitizer_internal_defs.h"
      18  #include "sanitizer_common/sanitizer_flag_parser.h"
      19  
      20  // ASan flag values can be defined in four ways:
      21  // 1) initialized with default values at startup.
      22  // 2) overriden during compilation of ASan runtime by providing
      23  //    compile definition ASAN_DEFAULT_OPTIONS.
      24  // 3) overriden from string returned by user-specified function
      25  //    __asan_default_options().
      26  // 4) overriden from env variable ASAN_OPTIONS.
      27  // 5) overriden during ASan activation (for now used on Android only).
      28  
      29  namespace __asan {
      30  
      31  struct Flags {
      32  #define ASAN_FLAG(Type, Name, DefaultValue, Description) Type Name;
      33  #include "asan_flags.inc"
      34  #undef ASAN_FLAG
      35  
      36    void SetDefaults();
      37  };
      38  
      39  extern Flags asan_flags_dont_use_directly;
      40  inline Flags *flags() {
      41    return &asan_flags_dont_use_directly;
      42  }
      43  
      44  void InitializeFlags();
      45  
      46  }  // namespace __asan
      47  
      48  #endif  // ASAN_FLAGS_H