gcc/testsuite/gcc.dg/attr-ifunc-3.c

   1 /* { dg-do run }  */
   2 /* { dg-require-ifunc "" } */
   3 /* { dg-options "" } */
   4
   5 #include <stdio.h>
   6
   7 static int __attribute__((noinline))
   8      implementation (void *ptr)
   9 {
  10   if (ptr)
  11     return ((int (*) (void *))ptr) (0);
  12
  13   printf ("'ere I am JH\n");
  14   return 0;
  15 }
  16
  17 static void *resolver (void)
  18 {
  19   return (void *)implementation;
  20 }
  21
  22 extern int magic (void *) __attribute__ ((ifunc ("resolver")));
  23
  24 int main ()
  25 {
  26   return magic ((void *)magic);
  27 }