1  /* Test dl_cache_line_size from a dlopen'ed DSO from a static executable.
       2     Copyright (C) 2020-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <dlfcn.h>
      20  #include <stdio.h>
      21  #include <errno.h>
      22  
      23  int test_cache(int *);
      24  
      25  static int
      26  do_test (void)
      27  {
      28    int ret;
      29    void *handle;
      30    int (*test_cache) (int *);
      31  
      32    handle = dlopen ("mod-cache-ppc.so", RTLD_LAZY | RTLD_LOCAL);
      33    if (handle == NULL)
      34      {
      35        printf ("dlopen (mod-cache-ppc.so): %s\n", dlerror ());
      36        return 1;
      37      }
      38  
      39    test_cache = dlsym (handle, "test_cache");
      40    if (test_cache == NULL)
      41      {
      42        printf ("dlsym (test_cache): %s\n", dlerror ());
      43        return 1;
      44      }
      45  
      46    ret = test_cache(&errno);
      47  
      48    test_cache = NULL;
      49    dlclose (handle);
      50  
      51    return ret;
      52  }
      53  
      54  #include <support/test-driver.c>