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 #include <stdlib.h>
   5
   6 /* bloody FSF dlcfn.h won't give us dladdr without this */
   7 #define _GNU_SOURCE
   8
   9 #include <dlfcn.h>
  10
  11 int main ()
  12 {
  13    void * handle = dlopen((void*)0, RTLD_GLOBAL | RTLD_NOW);
  14    void * addr = dlsym(handle, "printf");
  15    Dl_info * info = (Dl_info*) malloc(sizeof(Dl_info));
  16    if (dladdr(addr, info) == 0) {
  17        return 1;
  18    } else {
  19        return 104;
  20    }
  21 }