elf/restest1.c

   1 #include <dlfcn.h>
   2 #include <error.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5
   6 int
   7 main (void)
   8 {
   9   void *h1;
  10   int (*fp1) (int);
  11   void *h2;
  12   int (*fp2) (int);
  13   int res1;
  14   int res2;
  15
  16   h1 = dlopen ("testobj1.so", RTLD_LAZY);
  17   if (h1 == NULL)
  18     error (EXIT_FAILURE, 0, "while loading `%s': %s", "testobj1.so",
  19            dlerror ());
  20
  21   h2 = dlopen ("testobj1_1.so", RTLD_LAZY);
  22   if (h1 == NULL)
  23     error (EXIT_FAILURE, 0, "while loading `%s': %s", "testobj1_1.so",
  24            dlerror ());
  25
  26   fp1 = dlsym (h1, "obj1func1");
  27   if (fp1 == NULL)
  28     error (EXIT_FAILURE, 0, "getting `obj1func1' in `%s': %s",
  29            "testobj1.so", dlerror ());
  30
  31   fp2 = dlsym (h2, "obj1func1");
  32   if (fp2 == NULL)
  33     error (EXIT_FAILURE, 0, "getting `obj1func1' in `%s': %s",
  34            "testobj1_1.so", dlerror ());
  35
  36   res1 = fp1 (10);
  37   res2 = fp2 (10);
  38   printf ("fp1(10) = %d\nfp2(10) = %d\n", res1, res2);
  39
  40   return res1 != 42 || res2 != 72;
  41 }
  42
  43
  44 int
  45 foo (int a)
  46 {
  47   return a + 10;
  48 }