elf/reldep7.c

   1 #include <dlfcn.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4
   5 int
   6 main (void)
   7 {
   8   void *h1;
   9   void *h2;
  10   void *mod1_bar, *mod2_bar;
  11
  12   h1 = dlopen ("reldep7mod1.so", RTLD_GLOBAL | RTLD_LAZY);
  13   if (h1 == NULL)
  14     {
  15       printf ("cannot open reldep7mod1.so: %s\n", dlerror ());
  16       exit (1);
  17     }
  18
  19   h2 = dlopen ("reldep7mod2.so", RTLD_GLOBAL | RTLD_LAZY);
  20   if (h2 == NULL)
  21     {
  22       printf ("cannot open reldep7mod1.so: %s\n", dlerror ());
  23       exit (1);
  24     }
  25
  26   mod1_bar = dlsym (h1, "mod1_bar");
  27   if (mod1_bar == NULL)
  28     {
  29       printf ("cannot get address of \"mod1_bar\": %s\n", dlerror ());
  30       exit (1);
  31     }
  32
  33   mod2_bar = dlsym (h2, "mod2_bar");
  34   if (mod2_bar == NULL)
  35     {
  36       printf ("cannot get address of \"mod2_bar\": %s\n", dlerror ());
  37       exit (1);
  38     }
  39
  40   printf ("%d\n", ((int (*) (void)) mod1_bar) ());
  41   printf ("%d\n", ((int (*) (void)) mod2_bar) ());
  42
  43   if (dlclose (h1) != 0)
  44     {
  45       printf ("closing h1 failed: %s\n", dlerror ());
  46       exit (1);
  47     }
  48
  49   printf ("%d\n", ((int (*) (void)) mod2_bar) ());
  50
  51   if (dlclose (h2) != 0)
  52     {
  53       printf ("closing h2 failed: %s\n", dlerror ());
  54       exit (1);
  55     }
  56
  57   return 0;
  58 }