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1 //===-- sanitizer_mac_libcdep.cc ------------------------------------------===//
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2 //
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3 // This file is distributed under the University of Illinois Open Source
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4 // License. See LICENSE.TXT for details.
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5 //
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6 //===----------------------------------------------------------------------===//
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7 //
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8 // This file is shared between various sanitizers' runtime libraries and
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9 // implements OSX-specific functions.
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10 //===----------------------------------------------------------------------===//
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11
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12 #include "sanitizer_platform.h"
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13 #if SANITIZER_MAC
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14 #include "sanitizer_mac.h"
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15
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16 #include <sys/mman.h>
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17
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18 namespace __sanitizer {
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19
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20 void RestrictMemoryToMaxAddress(uptr max_address) {
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21 uptr size_to_mmap = GetMaxVirtualAddress() + 1 - max_address;
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22 void *res = MmapFixedNoAccess(max_address, size_to_mmap, "high gap");
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23 CHECK(res != MAP_FAILED);
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24 }
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25
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26 } // namespace __sanitizer
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27
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28 #endif // SANITIZER_MAC
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