| 1 | #include <dlfcn.h> |
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| 2 | #include <stdio.h> |
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| 3 | #include <string.h> |
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| 4 | |
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| 5 | static int |
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| 6 | do_test (void) |
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| 7 | { |
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| 8 | Dl_info i; |
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| 9 | if (dladdr (address: &printf, info: &i) == 0) |
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| 10 | { |
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| 11 | puts (s: "not found" ); |
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| 12 | return 1; |
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| 13 | } |
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| 14 | printf (format: "found symbol %s in %s\n" , i.dli_sname, i.dli_fname); |
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| 15 | if (i.dli_sname == NULL) |
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| 16 | return 1; |
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| 17 | |
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| 18 | #if __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1 |
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| 19 | /* On architectures which redirect long double to |
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| 20 | _Float128 (e.g powerpc64le), printf will resolve |
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| 21 | to __printfieee128 due to header redirects. There |
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| 22 | is no _IO_printfieee128 alias. */ |
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| 23 | return strcmp (i.dli_sname, "__printfieee128" ) != 0; |
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| 24 | #else |
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| 25 | return i.dli_sname == NULL |
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| 26 | || (strcmp (s1: i.dli_sname, s2: "printf" ) != 0 |
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| 27 | /* On architectures which create PIC code by default |
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| 28 | &printf may resolve to an address in libc.so |
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| 29 | rather than in the binary. printf and _IO_printf |
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| 30 | are aliased and which one comes first in the |
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| 31 | hash table is up to the linker. */ |
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| 32 | && strcmp (s1: i.dli_sname, s2: "_IO_printf" ) != 0); |
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| 33 | #endif |
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| 34 | } |
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| 35 | |
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| 36 | #include <support/test-driver.c> |
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| 37 | |
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