xref: /llvm-project/compiler-rt/test/asan/TestCases/use-after-delete.cpp (revision a09b88178492dcd372d8a1d5ed8d5dedda651614)
1 // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
2 // RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
3 // RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
4 // RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
5 // REQUIRES: stable-runtime
6 
7 #include <stdlib.h>
main()8 int main() {
9   char * volatile x = new char[10];
10   delete[] x;
11   return x[5];
12   // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
13   // CHECK:   {{0x.* at pc 0x.* bp 0x.* sp 0x.*}}
14   // CHECK: {{READ of size 1 at 0x.* thread T0}}
15   // CHECK: {{    #0 0x.* in main .*use-after-delete.cpp:}}[[@LINE-4]]
16   // CHECK: {{0x.* is located 5 bytes inside of 10-byte region .0x.*,0x.*}}
17 
18   // CHECK: {{freed by thread T0 here:}}
19   // CHECK-Linux:  {{    #0 0x.* in operator delete\[\]}}
20   // CHECK-SunOS:  {{    #0 0x.* in operator delete\[\]}}
21   // CHECK-Windows:{{    #0 0x.* in operator delete\[\]}}
22   // CHECK-FreeBSD:{{    #0 0x.* in operator delete\[\]}}
23   // CHECK-Darwin: {{    #0 0x.* in .*_Zda}}
24   // CHECK-NEXT:   {{    #1 0x.* in main .*use-after-delete.cpp:}}[[@LINE-14]]
25 
26   // CHECK: {{previously allocated by thread T0 here:}}
27   // CHECK-Linux:  {{    #0 0x.* in operator new\[\]}}
28   // CHECK-SunOS:  {{    #0 0x.* in operator new\[\]}}
29   // CHECK-Windows:{{    #0 0x.* in operator new\[\]}}
30   // CHECK-FreeBSD:{{    #0 0x.* in operator new\[\]}}
31   // CHECK-Darwin: {{    #0 0x.* in .*_Zna}}
32   // CHECK-NEXT:   {{    #1 0x.* in main .*use-after-delete.cpp:}}[[@LINE-23]]
33 
34 
35   // CHECK: Shadow byte legend (one shadow byte represents {{[0-9]+}} application bytes):
36   // CHECK: Global redzone:
37   // CHECK: ASan internal:
38 }
39