| 1 | /* Test STT_GNU_IFUNC symbols with dynamic function pointer only. */ |
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| 2 | |
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| 3 | #include <stdlib.h> |
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| 4 | |
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| 5 | extern int foo (void); |
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| 6 | extern int foo_protected (void); |
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| 7 | |
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| 8 | typedef int (*foo_p) (void); |
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| 9 | |
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| 10 | foo_p |
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| 11 | __attribute__ ((noinline)) |
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| 12 | get_foo (void) |
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| 13 | { |
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| 14 | return foo; |
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| 15 | } |
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| 16 | |
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| 17 | |
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| 18 | /* Address-significant access to protected symbols is not supported in |
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| 19 | position-dependent mode on several architectures because GCC |
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| 20 | generates relocations that assume that the address is local to the |
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| 21 | main program. */ |
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| 22 | #ifdef __PIE__ |
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| 23 | foo_p |
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| 24 | __attribute__ ((noinline)) |
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| 25 | get_foo_protected (void) |
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| 26 | { |
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| 27 | return foo_protected; |
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| 28 | } |
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| 29 | #endif |
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| 30 | |
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| 31 | int |
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| 32 | main (void) |
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| 33 | { |
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| 34 | foo_p p; |
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| 35 | |
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| 36 | p = get_foo (); |
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| 37 | if ((*p) () != -1) |
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| 38 | abort (); |
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| 39 | |
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| 40 | #ifdef __PIE__ |
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| 41 | p = get_foo_protected (); |
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| 42 | if ((*p) () != 0) |
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| 43 | abort (); |
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| 44 | #endif |
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| 45 | |
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| 46 | return 0; |
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| 47 | } |
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| 48 | |
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