gcc/testsuite/c-c++-common/attr-nocf-check-3.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-fcf-protection=none" } */
   3
   4 int  foo (void) __attribute__ ((nocf_check)); /* { dg-warning "'nocf_check' attribute ignored" } */
   5 void (*foo1) (void) __attribute__((nocf_check)); /* { dg-warning "'nocf_check' attribute ignored" } */
   6 void (*foo2) (void);
   7
   8 int
   9 foo (void) /* The function's address is not tracked.  */
  10 {
  11   /* This call site is not tracked for
  12      control-flow instrumentation.  */
  13   (*foo1)();
  14
  15   foo1 = foo2;
  16   /* This call site is still not tracked for
  17      control-flow instrumentation.  */
  18   (*foo1)();
  19
  20   /* This call site is tracked for
  21      control-flow instrumentation.  */
  22   (*foo2)();
  23
  24   foo2 = foo1;
  25   /* This call site is still tracked for
  26      control-flow instrumentation.  */
  27   (*foo2)();
  28
  29   return 0;
  30 }