1//===-- sanitizer_mac_libcdep.cc ------------------------------------------===// 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 shared between various sanitizers' runtime libraries and 9// implements OSX-specific functions. 10//===----------------------------------------------------------------------===// 11 12#include "sanitizer_platform.h" 13#if SANITIZER_MAC 14#include "sanitizer_mac.h" 15 16#include <sys/mman.h> 17 18namespace __sanitizer { 19 20void RestrictMemoryToMaxAddress(uptr max_address) { 21 uptr size_to_mmap = GetMaxUserVirtualAddress() + 1 - max_address; 22 void *res = MmapFixedNoAccess(max_address, size_to_mmap, "high gap"); 23 CHECK(res != MAP_FAILED); 24} 25 26} // namespace __sanitizer 27 28#endif // SANITIZER_MAC 29