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#include <fcntl.h>

#include <stdlib.h>

#include <stdio.h>

#include <dlfcn.h>

#include <stdint.h>

#ifdef __UCLIBC__

extern void _dlinfo(void);

#endif

int main(int argc, char **argv)

{

        int ret = EXIT_SUCCESS;

        void *handle;

        void (*mydltest)(void *value1, void *value2);

        char *error;

        uint32_t *value1, *value2;

        handle = dlopen (LIBNAME, RTLD_LAZY);

        if (!handle) {

                fprintf(stderr, "Could not open ./libtest.so: %s\n", dlerror());

                exit(1);

        }

        mydltest = dlsym(handle, "dltest");

        if ((error = dlerror()) != NULL)  {

                fprintf(stderr, "Could not locate symbol 'dltest': %s\n", error);

                exit(1);

        }

        mydltest(&value1, &value2);

        printf("dltest: __pthread_once=%p\n", value1);

        printf("dltest: pthread_self=%p\n", value2);

        if (value1 == value2) {

            ret = EXIT_FAILURE;

            printf("dltest: values should NOT be equal  Weak values resolved incorrectly!\n");

        } else {

            printf("dltest: weak symbols resoved correctly.\n");

        }

        dlclose(handle);

        return ret;

}