gcc/testsuite/c-c++-common/asan/bitfield-2.c

   1 /* Check that Asan correctly instruments bitfields with non-round offset.  */
   2
   3 /* { dg-do run } */
   4 /* { dg-shouldfail "asan" } */
   5
   6 struct A
   7 {
   8   char base;
   9   int : 7;
  10   int x : 8;
  11 };
  12
  13 int __attribute__ ((noinline, noclone))
  14 f (void *p) {
  15   return ((struct A *)p)->x;
  16 }
  17
  18 int
  19 main ()
  20 {
  21   char a = 0;
  22   return f (&a);
  23 }
  24
  25 /* { dg-output "ERROR: AddressSanitizer: stack-buffer-overflow" } */