test/asan/TestCases/use-after-delete.cc

   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
   6 #include <stdlib.h>
   7 int main() {
   8   char * volatile x = new char[10];
   9   delete[] x;
  10   return x[5];
  11   // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
  12   // CHECK:   {{0x.* at pc 0x.* bp 0x.* sp 0x.*}}
  13   // CHECK: {{READ of size 1 at 0x.* thread T0}}
  14   // CHECK: {{    #0 0x.* in main .*use-after-delete.cc:10}}
  15   // CHECK: {{0x.* is located 5 bytes inside of 10-byte region .0x.*,0x.*}}
  16   // CHECK: {{freed by thread T0 here:}}
  17
  18   // CHECK-Linux: {{    #0 0x.* in operator delete\[\]}}
  19   // CHECK-Linux: {{    #1 0x.* in main .*use-after-delete.cc:9}}
  20
  21   // CHECK: {{previously allocated by thread T0 here:}}
  22
  23   // CHECK-Linux: {{    #0 0x.* in operator new\[\]}}
  24   // CHECK-Linux: {{    #1 0x.* in main .*use-after-delete.cc:8}}
  25
  26   // CHECK: Shadow byte legend (one shadow byte represents 8 application bytes):
  27   // CHECK: Global redzone:
  28   // CHECK: ASan internal:
  29 }