tools-for-build/os-provides-dladdr-test.c

   1 /* test to build and run so that we know if we have dladdr
   2  */
   3
   4 /* bloody FSF dlcfn.h won't give us dladdr without this */
   5 #define _GNU_SOURCE
   6
   7 #include <dlfcn.h>
   8
   9 int main ()
  10 {
  11    void * handle = dlopen((void*)0, RTLD_GLOBAL | RTLD_NOW);
  12    void * addr = dlsym(handle, "printf");
  13    Dl_info * info = (Dl_info*) malloc(sizeof(Dl_info));
  14    dladdr(addr, info);
  15    if (strcmp(info->dli_sname, "printf")) {
  16        return 1;
  17    } else {
  18        return 104;
  19    }
  20 }