1 | // RUN: %clangxx_asan -O0 %s --std=c++14 -o %t |
2 | |
3 | // RUN: not %run %t 10 0 2>&1 | FileCheck %s --check-prefixes=CHECK,T0 |
4 | // RUN: not %run %t 10000000 0 2>&1 | FileCheck %s --check-prefixes=CHECK,T0 |
5 | |
6 | // RUN: not %run %t 10 1 2>&1 | FileCheck %s --check-prefixes=CHECK,T1 |
7 | // RUN: not %run %t 10000000 1 2>&1 | FileCheck %s --check-prefixes=CHECK,T1 |
8 | |
9 | // REQUIRES: stable-runtime |
10 | |
11 | #include <sanitizer/asan_interface.h> |
12 | #include <stdlib.h> |
13 | #include <thread> |
14 | |
15 | void UPDATE(void *p) { |
16 | __asan_update_allocation_context(addr: p); |
17 | } |
18 | |
19 | int main(int argc, char *argv[]) { |
20 | char *x = (char *)malloc(size: atoi(nptr: argv[1]) * sizeof(char)); |
21 | if (atoi(nptr: argv[2])) |
22 | std::thread([&]() { UPDATE(x); }).join(); |
23 | else |
24 | UPDATE(p: x); |
25 | free(ptr: x); |
26 | return x[5]; |
27 | // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}} |
28 | // CHECK: READ of size 1 at {{.*}} thread T0 |
29 | // T0: allocated by thread T0 here |
30 | // T1: allocated by thread T1 here |
31 | // CHECK: UPDATE |
32 | } |
33 | |