1 // RUN: %clangxx_asan -O0 %s -o %t 2 // RUN: %env_asan_opts=malloc_context_size=0:fast_unwind_on_malloc=0 not %run %t 2>&1 | FileCheck %s 3 // RUN: %env_asan_opts=malloc_context_size=0:fast_unwind_on_malloc=1 not %run %t 2>&1 | FileCheck %s 4 // RUN: %env_asan_opts=malloc_context_size=1:fast_unwind_on_malloc=0 not %run %t 2>&1 | FileCheck %s 5 // RUN: %env_asan_opts=malloc_context_size=1:fast_unwind_on_malloc=1 not %run %t 2>&1 | FileCheck %s 6 // RUN: %env_asan_opts=malloc_context_size=2 not %run %t 2>&1 | FileCheck %s --check-prefix=TWO 7 8 int main() { 9 char *x = new char[20]; 10 delete[] x; 11 return x[0]; 12 13 // CHECK: freed by thread T{{.*}} here: 14 // CHECK-NEXT: #0 0x{{.*}} in {{operator delete( )?\[\]|wrap__ZdaPv}} 15 // CHECK-NOT: #1 0x{{.*}} 16 17 // CHECK: previously allocated by thread T{{.*}} here: 18 // CHECK-NEXT: #0 0x{{.*}} in {{operator new( )?\[\]|wrap__Znam}} 19 // CHECK-NOT: #1 0x{{.*}} 20 21 // CHECK: SUMMARY: AddressSanitizer: heap-use-after-free 22 23 // TWO: previously allocated by thread T{{.*}} here: 24 // TWO-NEXT: #0 0x{{.*}} 25 // TWO-NEXT: #1 0x{{.*}} in main {{.*}}malloc_context_size.cc 26 // TWO: SUMMARY: AddressSanitizer: heap-use-after-free 27 } 28
