libsanitizer/asan/asan_mac.h

   1 //===-- asan_mac.h ----------------------------------------------*- C++ -*-===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // This file is a part of AddressSanitizer, an address sanity checker.
   9 //
  10 // Mac-specific ASan definitions.
  11 //===----------------------------------------------------------------------===//
  12 #ifndef ASAN_MAC_H
  13 #define ASAN_MAC_H
  14
  15 // CF_RC_BITS, the layout of CFRuntimeBase and __CFStrIsConstant are internal
  16 // and subject to change in further CoreFoundation versions. Apple does not
  17 // guarantee any binary compatibility from release to release.
  18
  19 // See http://opensource.apple.com/source/CF/CF-635.15/CFInternal.h
  20 #if defined(__BIG_ENDIAN__)
  21 #define CF_RC_BITS 0
  22 #endif
  23
  24 #if defined(__LITTLE_ENDIAN__)
  25 #define CF_RC_BITS 3
  26 #endif
  27
  28 // See http://opensource.apple.com/source/CF/CF-635.15/CFRuntime.h
  29 typedef struct __CFRuntimeBase {
  30   uptr _cfisa;
  31   u8 _cfinfo[4];
  32 #if __LP64__
  33   u32 _rc;
  34 #endif
  35 } CFRuntimeBase;
  36
  37 enum {
  38   MACOS_VERSION_UNKNOWN = 0,
  39   MACOS_VERSION_LEOPARD,
  40   MACOS_VERSION_SNOW_LEOPARD,
  41   MACOS_VERSION_LION,
  42   MACOS_VERSION_MOUNTAIN_LION
  43 };
  44
  45 // Used by asan_malloc_mac.cc and asan_mac.cc
  46 extern "C" void __CFInitialize();
  47
  48 namespace __asan {
  49
  50 int GetMacosVersion();
  51 void MaybeReplaceCFAllocator();
  52
  53 }  // namespace __asan
  54
  55 #endif  // ASAN_MAC_H