gcc/testsuite/gcc.dg/Wframe-address.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wframe-address" } */
   3 /* { dg-additional-options "-mbackchain" { target { s390*-*-* } } } */
   4
   5 void* __attribute__ ((noclone, noinline))
   6 test_builtin_frame_address (unsigned i)
   7 {
   8   void* const fa[] = {
   9     __builtin_frame_address (0),
  10     __builtin_frame_address (1), /* { dg-warning "builtin_frame_address" } */
  11     __builtin_frame_address (2), /* { dg-warning "builtin_frame_address" } */
  12     __builtin_frame_address (3), /* { dg-warning "builtin_frame_address" } */
  13     __builtin_frame_address (4)  /* { dg-warning "builtin_frame_address" } */
  14   };
  15
  16   return fa [i];
  17 }
  18
  19
  20 void* __attribute__ ((noclone, noinline))
  21 test_builtin_return_address (unsigned i)
  22 {
  23   void* const ra[] = {
  24     __builtin_return_address (0),
  25     __builtin_return_address (1), /* { dg-warning "builtin_return_address" } */
  26     __builtin_return_address (2), /* { dg-warning "builtin_return_address" } */
  27     __builtin_return_address (3), /* { dg-warning "builtin_return_address" } */
  28     __builtin_return_address (4)  /* { dg-warning "builtin_return_address" } */
  29   };
  30   return ra [i];
  31 }
  32
  33
  34 int main (void)
  35 {
  36   test_builtin_frame_address (0);
  37
  38   test_builtin_return_address (0);
  39
  40   void* const a[] = {
  41     __builtin_frame_address (0),
  42     __builtin_frame_address (1), /* { dg-warning "builtin_frame_address" } */
  43     __builtin_frame_address (2), /* { dg-warning "builtin_frame_address" } */
  44     __builtin_frame_address (3), /* { dg-warning "builtin_frame_address" } */
  45     __builtin_frame_address (4), /* { dg-warning "builtin_frame_address" } */
  46
  47     __builtin_return_address (0),
  48     __builtin_return_address (1), /* { dg-warning "builtin_return_address" } */
  49     __builtin_return_address (2), /* { dg-warning "builtin_return_address" } */
  50     __builtin_return_address (3), /* { dg-warning "builtin_return_address" } */
  51     __builtin_return_address (4)  /* { dg-warning "builtin_return_address" } */
  52   };
  53
  54   return 0;
  55 }