ld/testsuite/ld-ifunc/ifunc-main.c

   1 #include <stdio.h>
   2
   3 extern int foo(void);
   4 extern int bar(void);
   5
   6 typedef int (*func_p) (void);
   7
   8 func_p foo_ptr = foo;
   9
  10 func_p
  11 __attribute__((noinline))
  12 get_bar (void)
  13 {
  14   return bar;
  15 }
  16
  17 int
  18 main (void)
  19 {
  20   func_p bar_ptr = get_bar ();
  21   if (bar_ptr != bar)
  22     __builtin_abort ();
  23   if (bar_ptr() != -1)
  24     __builtin_abort ();
  25   if (bar() != -1)
  26     __builtin_abort ();
  27
  28   if (foo_ptr != foo)
  29     __builtin_abort ();
  30   if (foo_ptr() != 1)
  31     __builtin_abort ();
  32   if (foo() != 1)
  33     __builtin_abort ();
  34
  35   printf ("OK\n");
  36
  37   return 0;
  38 }