| 1 | #include <dlfcn.h> |
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| 2 | #include <stdio.h> |
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| 3 | #include <stdlib.h> |
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| 4 | |
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| 5 | extern int call_me (void); |
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| 6 | |
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| 7 | int |
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| 8 | call_me (void) |
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| 9 | { |
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| 10 | void *h; |
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| 11 | int (*fp) (void); |
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| 12 | int res; |
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| 13 | |
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| 14 | h = dlopen (file: "reldepmod1.so" , RTLD_LAZY); |
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| 15 | if (h == NULL) |
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| 16 | { |
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| 17 | printf (format: "cannot open reldepmod1.so in %s: %s\n" , __FILE__, dlerror ()); |
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| 18 | exit (status: 1); |
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| 19 | } |
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| 20 | |
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| 21 | fp = dlsym (handle: h, name: "foo" ); |
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| 22 | if (fp == NULL) |
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| 23 | { |
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| 24 | printf (format: "cannot get address of foo in global scope: %s\n" , dlerror ()); |
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| 25 | exit (status: 1); |
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| 26 | } |
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| 27 | |
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| 28 | res = fp () - 42; |
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| 29 | |
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| 30 | if (dlclose (handle: h) != 0) |
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| 31 | { |
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| 32 | printf (format: "failure when closing h in %s: %s\n" , __FILE__, dlerror ()); |
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| 33 | exit (status: 1); |
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| 34 | } |
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| 35 | |
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| 36 | return res; |
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| 37 | } |
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| 38 | |
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