| 1 | #include <dlfcn.h> |
|---|
| 2 | #include <mcheck.h> |
|---|
| 3 | #include <stdio.h> |
|---|
| 4 | #include <stdlib.h> |
|---|
| 5 | |
|---|
| 6 | int |
|---|
| 7 | main (void) |
|---|
| 8 | { |
|---|
| 9 | void *h[2]; |
|---|
| 10 | int fail; |
|---|
| 11 | int (*fp) (void); |
|---|
| 12 | |
|---|
| 13 | mtrace (); |
|---|
| 14 | |
|---|
| 15 | h[0] = dlopen (file: "ltglobmod1.so" , RTLD_LAZY); |
|---|
| 16 | if (h[0] == NULL) |
|---|
| 17 | { |
|---|
| 18 | printf (format: "%s: cannot open %s: %s" , |
|---|
| 19 | __FUNCTION__, "ltglobmod1.so" , dlerror ()); |
|---|
| 20 | exit (EXIT_FAILURE); |
|---|
| 21 | } |
|---|
| 22 | h[1] = dlopen (file: "ltglobmod2.so" , RTLD_LAZY); |
|---|
| 23 | if (h[1] == NULL) |
|---|
| 24 | { |
|---|
| 25 | printf (format: "%s: cannot open %s: %s" , |
|---|
| 26 | __FUNCTION__, "ltglobmod2.so" , dlerror ()); |
|---|
| 27 | exit (EXIT_FAILURE); |
|---|
| 28 | } |
|---|
| 29 | |
|---|
| 30 | puts (s: "loaded \"ltglobmod1.so\" without RTLD_GLOBAL" ); |
|---|
| 31 | |
|---|
| 32 | fp = dlsym (handle: h[1], name: "foo" ); |
|---|
| 33 | if (fp == NULL) |
|---|
| 34 | { |
|---|
| 35 | printf (format: "cannot get address of `foo': %s" , dlerror ()); |
|---|
| 36 | exit (EXIT_FAILURE); |
|---|
| 37 | } |
|---|
| 38 | |
|---|
| 39 | fail = fp (); |
|---|
| 40 | |
|---|
| 41 | puts (s: "back in main" ); |
|---|
| 42 | |
|---|
| 43 | dlclose (handle: h[1]); |
|---|
| 44 | dlclose (handle: h[0]); |
|---|
| 45 | |
|---|
| 46 | return fail; |
|---|
| 47 | } |
|---|
| 48 | |
|---|
