| 1 | #include <dlfcn.h> |
|---|---|
| 2 | #include <stdio.h> |
| 3 | #include <stdlib.h> |
| 4 | |
| 5 | extern int call_me (void); |
| 6 | |
| 7 | int |
| 8 | call_me (void) |
| 9 | { |
| 10 | int (*fp) (void); |
| 11 | |
| 12 | fp = dlsym (RTLD_DEFAULT, name: "foo"); |
| 13 | if (fp == NULL) |
| 14 | { |
| 15 | printf (format: "cannot get address of foo in global scope: %s\n", dlerror ()); |
| 16 | exit (status: 1); |
| 17 | } |
| 18 | |
| 19 | return fp () - 42; |
| 20 | } |
| 21 |