elf/nextmod1.c

   1 #include <dlfcn.h>
   2
   3 int nextmod1_dummy_var;
   4
   5 int
   6 successful_rtld_next_test (void)
   7 {
   8   int (*fp) (void);
   9
  10   /* Get the next function... */
  11   fp = (int (*) (void)) dlsym (RTLD_NEXT, __FUNCTION__);
  12
  13   /* ...and simply call it.  */
  14   return fp ();
  15 }
  16
  17
  18 void *
  19 failing_rtld_next_use (void)
  20 {
  21   void *ret = dlsym (RTLD_NEXT, __FUNCTION__);
  22
  23   /* Ensure we are not tail call optimized, because then RTLD_NEXT
  24      might return this function.  */
  25   ++nextmod1_dummy_var;
  26   return ret;
  27 }