gcc/testsuite/jit.dg/verify-dynamic-library.c

   1 /* For use by jit-verify-dynamic-library, used by
   2    test-compile-to-dynamic-library.c.  */
   3 #include <dlfcn.h>
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6
   7 int
   8 main (int argc, char **argv)
   9 {
  10   void *handle;
  11   void (*hello_world) (const char *name);
  12   char *error;
  13
  14   handle = dlopen ("./output-of-test-compile-to-dynamic-library.c.so",
  15                    RTLD_NOW | RTLD_LOCAL);
  16   if (!handle)
  17     {
  18       fprintf (stderr, "dlopen failed: %s\n", dlerror());
  19       exit (1);
  20     }
  21
  22   /* Clear any existing error */
  23   dlerror ();
  24
  25   /* This symbol is from the DSO built by
  26      test-compile-to-dynamic-library.c.  */
  27   *(void **) (&hello_world) = dlsym (handle, "hello_world");
  28
  29   if ((error = dlerror()) != NULL)
  30     {
  31       fprintf (stderr, "dlsym failed: %s\n", error);
  32       exit (2);
  33     }
  34
  35   /* Call the function from the generated DSO.  */
  36   hello_world (argv[0]);
  37
  38   dlclose (handle);
  39
  40   return 0;
  41 }