| 1 | /* Test STT_GNU_IFUNC symbols: |
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| 2 | |
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| 3 | 1. Direct function call. |
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| 4 | 2. Function pointer. |
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| 5 | 3. Visibility without override. |
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| 6 | */ |
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| 7 | |
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| 8 | #include <stdlib.h> |
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| 9 | |
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| 10 | int ret_foo; |
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| 11 | int ret_foo_hidden; |
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| 12 | int ret_foo_protected; |
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| 13 | |
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| 14 | extern int foo (void); |
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| 15 | extern int foo_protected (void); |
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| 16 | |
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| 17 | #ifndef FOO_P |
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| 18 | typedef int (*foo_p) (void); |
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| 19 | #endif |
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| 20 | |
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| 21 | foo_p foo_ptr = foo; |
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| 22 | |
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| 23 | /* Address-significant access to protected symbols is not supported in |
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| 24 | position-dependent mode on several architectures because GCC |
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| 25 | generates relocations that assume that the address is local to the |
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| 26 | main program. */ |
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| 27 | #ifdef __PIE__ |
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| 28 | foo_p foo_procted_ptr = foo_protected; |
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| 29 | #endif |
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| 30 | |
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| 31 | extern foo_p get_foo_p (void); |
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| 32 | extern foo_p get_foo_hidden_p (void); |
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| 33 | extern foo_p get_foo_protected_p (void); |
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| 34 | |
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| 35 | int |
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| 36 | main (void) |
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| 37 | { |
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| 38 | foo_p p; |
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| 39 | |
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| 40 | if (foo_ptr != foo) |
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| 41 | abort (); |
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| 42 | if (foo () != -1) |
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| 43 | abort (); |
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| 44 | if ((*foo_ptr) () != -1) |
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| 45 | abort (); |
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| 46 | |
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| 47 | #ifdef __PIE__ |
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| 48 | if (foo_procted_ptr != foo_protected) |
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| 49 | abort (); |
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| 50 | #endif |
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| 51 | if (foo_protected () != 0) |
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| 52 | abort (); |
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| 53 | #ifdef __PIE__ |
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| 54 | if ((*foo_procted_ptr) () != 0) |
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| 55 | abort (); |
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| 56 | #endif |
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| 57 | |
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| 58 | p = get_foo_p (); |
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| 59 | if (p != foo) |
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| 60 | abort (); |
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| 61 | if (ret_foo != -1 || (*p) () != ret_foo) |
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| 62 | abort (); |
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| 63 | |
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| 64 | p = get_foo_hidden_p (); |
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| 65 | if (ret_foo_hidden != 1 || (*p) () != ret_foo_hidden) |
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| 66 | abort (); |
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| 67 | |
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| 68 | p = get_foo_protected_p (); |
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| 69 | #ifdef __PIE__ |
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| 70 | if (p != foo_protected) |
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| 71 | abort (); |
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| 72 | #endif |
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| 73 | if (ret_foo_protected != 0 || (*p) () != ret_foo_protected) |
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| 74 | abort (); |
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| 75 | |
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| 76 | return 0; |
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| 77 | } |
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| 78 | |
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