31 lines
940 B
C++
31 lines
940 B
C++
//===-- sanitizer_mac_libcdep.cc ------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is shared between various sanitizers' runtime libraries and
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// implements OSX-specific functions.
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//===----------------------------------------------------------------------===//
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#include "sanitizer_platform.h"
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#if SANITIZER_MAC
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#include "sanitizer_mac.h"
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#include <sys/mman.h>
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namespace __sanitizer {
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void RestrictMemoryToMaxAddress(uptr max_address) {
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uptr size_to_mmap = GetMaxUserVirtualAddress() + 1 - max_address;
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void *res = MmapFixedNoAccess(max_address, size_to_mmap, "high gap");
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CHECK(res != MAP_FAILED);
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}
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} // namespace __sanitizer
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#endif // SANITIZER_MAC
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