blob: ac7e328946bfbe2785c0c73f58e6ace5d3a7011f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
//===-- sanitizer_mac_libcdep.cpp -----------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is shared between various sanitizers' runtime libraries and
// implements OSX-specific functions.
//===----------------------------------------------------------------------===//
#include "sanitizer_platform.h"
#if SANITIZER_MAC
#include "sanitizer_mac.h"
#include <sys/mman.h>
namespace __sanitizer {
void RestrictMemoryToMaxAddress(uptr max_address) {
uptr size_to_mmap = GetMaxUserVirtualAddress() + 1 - max_address;
void *res = MmapFixedNoAccess(max_address, size_to_mmap, "high gap");
CHECK(res != MAP_FAILED);
}
} // namespace __sanitizer
#endif // SANITIZER_MAC
|
