// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s #include #include #include #include int main() { const size_t kLog2Size = 39; const uintptr_t kLocation = 0x40ULL << kLog2Size; void *p = mmap( reinterpret_cast(kLocation), 1ULL << kLog2Size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0); fprintf(stderr, "DONE %p %d\n", p, errno); return p == MAP_FAILED; } // CHECK: DONE