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      1 //===-- asan_flags.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 AddressSanitizer, an address sanity checker.
     11 //
     12 // ASan runtime flags.
     13 //===----------------------------------------------------------------------===//
     14 
     15 #ifndef ASAN_FLAGS_H
     16 #define ASAN_FLAGS_H
     17 
     18 #include "sanitizer_common/sanitizer_internal_defs.h"
     19 #include "sanitizer_common/sanitizer_flag_parser.h"
     20 
     21 // ASan flag values can be defined in four ways:
     22 // 1) initialized with default values at startup.
     23 // 2) overriden during compilation of ASan runtime by providing
     24 //    compile definition ASAN_DEFAULT_OPTIONS.
     25 // 3) overriden from string returned by user-specified function
     26 //    __asan_default_options().
     27 // 4) overriden from env variable ASAN_OPTIONS.
     28 // 5) overriden during ASan activation (for now used on Android only).
     29 
     30 namespace __asan {
     31 
     32 struct Flags {
     33 #define ASAN_FLAG(Type, Name, DefaultValue, Description) Type Name;
     34 #include "asan_flags.inc"
     35 #undef ASAN_FLAG
     36 
     37   void SetDefaults();
     38 };
     39 
     40 extern Flags asan_flags_dont_use_directly;
     41 inline Flags *flags() {
     42   return &asan_flags_dont_use_directly;
     43 }
     44 
     45 void InitializeFlags();
     46 
     47 }  // namespace __asan
     48 
     49 #endif  // ASAN_FLAGS_H
     50