1// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2#include <stdint.h>
3#include <stdio.h>
4#include <sys/mman.h>
5
6int main() {
7  const size_t kLog2Size = 40;
8  const uintptr_t kLocation = 0x40ULL << kLog2Size;
9  void *p = mmap(
10      reinterpret_cast<void*>(kLocation),
11      1ULL << kLog2Size,
12      PROT_READ|PROT_WRITE,
13      MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,
14      -1, 0);
15  fprintf(stderr, "DONE %p\n", p);
16  return p == MAP_FAILED;
17}
18
19// CHECK: DONE
20