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>