elf/tst-dlmopen1.c

   1 #include <dlfcn.h>
   2 #include <stdio.h>
   3 #include <gnu/lib-names.h>
   4
   5 #define TEST_SO "$ORIGIN/tst-dlmopen1mod.so"
   6
   7 static int
   8 do_test (void)
   9 {
  10   void *h = dlopen (LIBC_SO, RTLD_LAZY|RTLD_NOLOAD);
  11   if (h == NULL)
  12     {
  13       printf ("cannot get handle for %s: %s\n", LIBC_SO, dlerror ());
  14       return 1;
  15     }
  16
  17   Lmid_t ns = -10;
  18   if (dlinfo (h, RTLD_DI_LMID, &ns) != 0)
  19     {
  20       printf ("dlinfo for %s in %s failed: %s\n",
  21               LIBC_SO, __func__, dlerror ());
  22       return 1;
  23     }
  24
  25   if (ns != LM_ID_BASE)
  26     {
  27       printf ("namespace for %s not LM_ID_BASE\n", LIBC_SO);
  28       return 1;
  29     }
  30
  31   if (dlclose (h) != 0)
  32     {
  33       printf ("dlclose for %s in %s failed: %s\n",
  34               LIBC_SO, __func__, dlerror ());
  35       return 1;
  36     }
  37
  38   h = dlmopen (LM_ID_NEWLM, TEST_SO, RTLD_LAZY);
  39   if (h == NULL)
  40     {
  41       printf ("cannot get handle for %s: %s\n",
  42               "tst-dlmopen1mod.so", dlerror ());
  43       return 1;
  44     }
  45
  46   ns = -10;
  47   if (dlinfo (h, RTLD_DI_LMID, &ns) != 0)
  48     {
  49       printf ("dlinfo for %s in %s failed: %s\n",
  50               "tst-dlmopen1mod.so", __func__, dlerror ());
  51       return 1;
  52     }
  53
  54   if (ns == LM_ID_BASE)
  55     {
  56       printf ("namespace for %s is LM_ID_BASE\n", TEST_SO);
  57       return 1;
  58     }
  59
  60   int (*fct) (Lmid_t) = dlsym (h, "foo");
  61   if (fct == NULL)
  62     {
  63       printf ("could not find %s: %s\n", "foo", dlerror ());
  64       return 1;
  65     }
  66
  67   if (fct (ns) != 0)
  68     return 1;
  69
  70   if (dlclose (h) != 0)
  71     {
  72       printf ("dlclose for %s in %s failed: %s\n",
  73               TEST_SO, __func__, dlerror ());
  74       return 1;
  75     }
  76
  77   return 0;
  78 }
  79
  80 #include <support/test-driver.c>