dlfcn/bug-dlsym1.c

   1 /* Test case for bug in dlsym accessing dependency objects' symbols.  */
   2
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #include <unistd.h>
   6 #include <dlfcn.h>
   7
   8 int main(void)
   9 {
  10     void *handle;
  11     char *c;
  12
  13     /* open lib1.so, which has the unresolved test symbol and a DT_NEEDED
  14        on lib2.so, which provides the symbol */
  15     if ((handle = dlopen("bug-dlsym1-lib1.so", RTLD_NOW)) == NULL) {
  16         printf("dlopen(\"bug-dlsym1-lib1.so\"): %s\n", dlerror());
  17         abort();
  18     }
  19
  20     if ((c = dlsym(handle, "dlopen_test_variable")) == NULL) {
  21         printf("dlsym(handle, \"dlopen_test_variable\"): %s\n", dlerror());
  22         abort();
  23     }
  24
  25     (void) dlclose(handle);
  26
  27     return 0;
  28 }