elf/constload2.c

   1 #include <dlfcn.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4
   5 extern int bar (void);
   6
   7 void *h;
   8
   9 int
  10 foo (void)
  11 {
  12   return 42 + bar ();
  13 }
  14
  15 int
  16 baz (void)
  17 {
  18   return -21;
  19 }
  20
  21 void
  22 __attribute__ ((__constructor__))
  23 init (void)
  24 {
  25   h = dlopen ("constload3.so", RTLD_GLOBAL | RTLD_LAZY);
  26   if (h == NULL)
  27     {
  28       puts ("failed to load constload3");
  29       exit (1);
  30     }
  31   else
  32     puts ("succeeded loading constload3");
  33 }
  34
  35 static void
  36 __attribute__ ((__destructor__))
  37 fini (void)
  38 {
  39   if (dlclose (h) != 0)
  40     {
  41       puts ("failed to unload constload3");
  42       exit (1);
  43     }
  44   else
  45     puts ("succeeded unloading constload3");
  46 }