elf/tst-thrlock.c

   1 #include <dlfcn.h>
   2 #include <pthread.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6 #include <gnu/lib-names.h>
   7
   8 static void *
   9 tf (void *arg)
  10 {
  11   void *h = dlopen (LIBM_SO, RTLD_LAZY);
  12   if (h == NULL)
  13     {
  14       printf ("dlopen failed: %s\n", dlerror ());
  15       exit (1);
  16     }
  17   if (dlsym (h, "sin") == NULL)
  18     {
  19       printf ("dlsym failed: %s\n", dlerror ());
  20       exit (1);
  21     }
  22   if (dlclose (h) != 0)
  23     {
  24       printf ("dlclose failed: %s\n", dlerror ());
  25       exit (1);
  26     }
  27   return NULL;
  28 }
  29
  30
  31 static int
  32 do_test (void)
  33 {
  34 #define N 10
  35   pthread_t th[N];
  36   for (int i = 0; i < N; ++i)
  37     {
  38       int e = pthread_create (&th[i], NULL, tf, NULL);
  39       if (e != 0)
  40         {
  41           printf ("pthread_create failed with %d (%s)\n", e, strerror (e));
  42           return 1;
  43         }
  44     }
  45   for (int i = 0; i < N; ++i)
  46     {
  47       void *res;
  48       int e = pthread_join (th[i], &res);
  49       if (e != 0 || res != NULL)
  50         {
  51           puts ("thread failed");
  52           return 1;
  53         }
  54     }
  55   return 0;
  56 }
  57
  58 #include <support/test-driver.c>