elf/tst-dlmopen1.c

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