src/llvm/projects/compiler-rt/lib/asan/asan_mac.h

   1 //===-- asan_mac.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 // Mac-specific ASan definitions.
  13 //===----------------------------------------------------------------------===//
  14 #ifndef ASAN_MAC_H
  15 #define ASAN_MAC_H
  16
  17 // CF_RC_BITS, the layout of CFRuntimeBase and __CFStrIsConstant are internal
  18 // and subject to change in further CoreFoundation versions. Apple does not
  19 // guarantee any binary compatibility from release to release.
  20
  21 // See http://opensource.apple.com/source/CF/CF-635.15/CFInternal.h
  22 #if defined(__BIG_ENDIAN__)
  23 #define CF_RC_BITS 0
  24 #endif
  25
  26 #if defined(__LITTLE_ENDIAN__)
  27 #define CF_RC_BITS 3
  28 #endif
  29
  30 // See http://opensource.apple.com/source/CF/CF-635.15/CFRuntime.h
  31 typedef struct __CFRuntimeBase {
  32   uptr _cfisa;
  33   u8 _cfinfo[4];
  34 #if __LP64__
  35   u32 _rc;
  36 #endif
  37 } CFRuntimeBase;
  38
  39 enum {
  40   MACOS_VERSION_UNKNOWN = 0,
  41   MACOS_VERSION_LEOPARD,
  42   MACOS_VERSION_SNOW_LEOPARD,
  43   MACOS_VERSION_LION
  44 };
  45
  46 // Used by asan_malloc_mac.cc and asan_mac.cc
  47 extern "C" void __CFInitialize();
  48
  49 namespace __asan {
  50
  51 int GetMacosVersion();
  52 void ReplaceCFAllocator();
  53
  54 }  // namespace __asan
  55
  56 #endif  // ASAN_MAC_H