elf/ifuncmain1.c

   1 /* Test STT_GNU_IFUNC symbols:
   2
   3    1. Direct function call.
   4    2. Function pointer.
   5    3. Visibility without override.
   6  */
   7
   8 #include <stdlib.h>
   9
  10 int ret_foo;
  11 int ret_foo_hidden;
  12 int ret_foo_protected;
  13
  14 extern int foo (void);
  15 extern int foo_protected (void);
  16
  17 #ifndef FOO_P
  18 typedef int (*foo_p) (void);
  19 #endif
  20
  21 foo_p foo_ptr = foo;
  22 foo_p foo_procted_ptr = foo_protected;
  23
  24 extern foo_p get_foo_p (void);
  25 extern foo_p get_foo_hidden_p (void);
  26 extern foo_p get_foo_protected_p (void);
  27
  28 int
  29 main (void)
  30 {
  31   foo_p p;
  32
  33   if (foo_ptr != foo)
  34     abort ();
  35   if (foo () != -1)
  36     abort ();
  37   if ((*foo_ptr) () != -1)
  38     abort ();
  39
  40   if (foo_procted_ptr != foo_protected)
  41     abort ();
  42   if (foo_protected () != 0)
  43     abort ();
  44   if ((*foo_procted_ptr) () != 0)
  45     abort ();
  46
  47   p = get_foo_p ();
  48   if (p != foo)
  49     abort ();
  50   if (ret_foo != -1 || (*p) () != ret_foo)
  51     abort ();
  52
  53   p = get_foo_hidden_p ();
  54   if (ret_foo_hidden != 1 || (*p) () != ret_foo_hidden)
  55     abort ();
  56
  57   p = get_foo_protected_p ();
  58   if (p != foo_protected)
  59     abort ();
  60   if (ret_foo_protected != 0 || (*p) () != ret_foo_protected)
  61     abort ();
  62
  63   return 0;
  64 }