| 1 | #include <stdio.h> |
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| 2 | |
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| 3 | |
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| 4 | __thread int foo; |
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| 5 | |
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| 6 | |
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| 7 | int |
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| 8 | in_dso (int n, int *caller_foop) |
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| 9 | { |
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| 10 | int *foop; |
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| 11 | int result = 0; |
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| 12 | |
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| 13 | puts (s: "foo" ); /* Make sure PLT is used before macros. */ |
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| 14 | asm ("" ::: "memory" ); |
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| 15 | |
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| 16 | foop = &foo; |
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| 17 | |
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| 18 | if (caller_foop != NULL && foop != caller_foop) |
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| 19 | { |
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| 20 | printf (format: "callers address of foo differs: %p vs %p\n" , caller_foop, foop); |
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| 21 | result = 1; |
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| 22 | } |
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| 23 | else if (*foop != n) |
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| 24 | { |
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| 25 | printf (format: "foo != %d\n" , n); |
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| 26 | result = 1; |
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| 27 | } |
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| 28 | |
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| 29 | *foop = 16; |
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| 30 | |
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| 31 | return result; |
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| 32 | } |
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| 33 | |
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