test/asan/TestCases/malloc_context_size.cc

   1 // RUN: %clangxx_asan -O0 %s -o %t
   2 // RUN: ASAN_OPTIONS=malloc_context_size=0:fast_unwind_on_malloc=0 not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os
   3 // RUN: ASAN_OPTIONS=malloc_context_size=0:fast_unwind_on_malloc=1 not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os
   4 // RUN: ASAN_OPTIONS=malloc_context_size=1:fast_unwind_on_malloc=0 not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os
   5 // RUN: ASAN_OPTIONS=malloc_context_size=1:fast_unwind_on_malloc=1 not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os
   6 // RUN: ASAN_OPTIONS=malloc_context_size=2 not %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   // We need to keep duplicate lines with different 'CHECK-%os' prefixes,
  13   // otherwise FileCheck barks on missing 'CHECK-%os' before 'CHECK-%os-NEXT'.
  14
  15   // CHECK-Linux: freed by thread T{{.*}} here:
  16   // CHECK-Linux-NEXT: #0 0x{{.*}} in operator delete[]
  17   // CHECK-Darwin: freed by thread T{{.*}} here:
  18   // CHECK-Darwin-NEXT: #0 0x{{.*}} in wrap__ZdaPv
  19   // CHECK-NOT: #1 0x{{.*}}
  20
  21   // CHECK-Linux: previously allocated by thread T{{.*}} here:
  22   // CHECK-Linux-NEXT: #0 0x{{.*}} in operator new[]
  23   // CHECK-Darwin: previously allocated by thread T{{.*}} here:
  24   // CHECK-Darwin-NEXT: #0 0x{{.*}} in wrap__Znam
  25   // CHECK-NOT: #1 0x{{.*}}
  26
  27   // CHECK: SUMMARY: AddressSanitizer: heap-use-after-free
  28
  29   // TWO: previously allocated by thread T{{.*}} here:
  30   // TWO-NEXT: #0 0x{{.*}}
  31   // TWO-NEXT: #1 0x{{.*}} in main {{.*}}malloc_context_size.cc
  32   // TWO: SUMMARY: AddressSanitizer: heap-use-after-free
  33 }