libsanitizer/interception/interception_mac.cc

   1 //===-- interception_mac.cc -------------------------------------*- 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 interception methods.
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifdef __APPLE__
  14
  15 #include "interception.h"
  16 #include "mach_override/mach_override.h"
  17
  18 namespace __interception {
  19 bool OverrideFunction(uptr old_func, uptr new_func, uptr *orig_old_func) {
  20   *orig_old_func = 0;
  21   int res = __asan_mach_override_ptr_custom((void*)old_func, (void*)new_func,
  22                                             (void**)orig_old_func,
  23                                             __interception_allocate_island,
  24                                             __interception_deallocate_island);
  25   return (res == 0) && (*orig_old_func != 0);
  26 }
  27 }  // namespace __interception
  28
  29 #endif  // __APPLE__