elf/tst-unique1.c

   1 #include <config.h>
   2 #include <dlfcn.h>
   3 #include <stdio.h>
   4 #include <sys/mman.h>
   5
   6 static int
   7 do_test (void)
   8 {
   9   void *h1 = dlopen ("tst-unique1mod1.so", RTLD_LAZY);
  10   if (h1 == NULL)
  11     {
  12       puts ("cannot load tst-unique1mod1");
  13       return 1;
  14     }
  15   int *(*f1) (void) = dlsym (h1, "f");
  16   if (f1 == NULL)
  17     {
  18       puts ("cannot locate f in tst-unique1mod1");
  19       return 1;
  20     }
  21   void *h2 = dlopen ("tst-unique1mod2.so", RTLD_LAZY);
  22   if (h2 == NULL)
  23     {
  24       puts ("cannot load tst-unique1mod2");
  25       return 1;
  26     }
  27   int (*f2) (int *) = dlsym (h2, "f");
  28   if (f2 == NULL)
  29     {
  30       puts ("cannot locate f in tst-unique1mod2");
  31       return 1;
  32     }
  33   if (f2 (f1 ()))
  34     {
  35       puts ("f from tst-unique1mod2 failed");
  36       return 1;
  37     }
  38   dlclose (h2);
  39   dlclose (h1);
  40   mmap (NULL, 1024 * 1024 * 16, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
  41   h2 = dlopen ("tst-unique1mod2.so", RTLD_LAZY);
  42   if (h2 == NULL)
  43     {
  44       puts ("cannot load tst-unique1mod2");
  45       return 1;
  46     }
  47   f2 = dlsym (h2, "f");
  48   if (f2 == NULL)
  49     {
  50       puts ("cannot locate f in tst-unique1mod2");
  51       return 1;
  52     }
  53   h1 = dlopen ("tst-unique1mod1.so", RTLD_LAZY);
  54   if (h1 == NULL)
  55     {
  56       puts ("cannot load tst-unique1mod1");
  57       return 1;
  58     }
  59   f1 = dlsym (h1, "f");
  60   if (f1 == NULL)
  61     {
  62       puts ("cannot locate f in tst-unique1mod1");
  63       return 1;
  64     }
  65   if (f2 (f1 ()))
  66     {
  67       puts ("f from tst-unique1mod2 failed");
  68       return 1;
  69     }
  70   return 0;
  71 }
  72
  73 #include <support/test-driver.c>