| 1 | #include <dlfcn.h> |
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| 2 | |
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| 3 | extern int successful_rtld_next_test (void); |
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| 4 | extern void *failing_rtld_next_use (void); |
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| 5 | |
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| 6 | int nextmod1_dummy_var; |
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| 7 | |
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| 8 | int |
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| 9 | successful_rtld_next_test (void) |
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| 10 | { |
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| 11 | int (*fp) (void); |
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| 12 | |
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| 13 | /* Get the next function... */ |
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| 14 | fp = (int (*) (void)) dlsym (RTLD_NEXT, name: __FUNCTION__); |
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| 15 | |
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| 16 | /* ...and simply call it. */ |
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| 17 | return fp (); |
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| 18 | } |
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| 19 | |
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| 20 | |
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| 21 | void * |
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| 22 | failing_rtld_next_use (void) |
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| 23 | { |
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| 24 | void *ret = dlsym (RTLD_NEXT, name: __FUNCTION__); |
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| 25 | |
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| 26 | /* Ensure we are not tail call optimized, because then RTLD_NEXT |
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| 27 | might return this function. */ |
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| 28 | ++nextmod1_dummy_var; |
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| 29 | return ret; |
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| 30 | } |
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| 31 | |
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