| 1 | // RUN: %clang_cc1 -verify -fsyntax-only %s |
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| 2 | |
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| 3 | extern int f0() __attribute__((weak)); |
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| 4 | extern int g0 __attribute__((weak)); |
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| 5 | extern int g1 __attribute__((weak_import)); |
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| 6 | int f2() __attribute__((weak)); |
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| 7 | int g2 __attribute__((weak)); |
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| 8 | int g3 __attribute__((weak_import)); // expected-warning {{'weak_import' attribute cannot be specified on a definition}} |
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| 9 | int __attribute__((weak_import)) g4(void); |
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| 10 | void __attribute__((weak_import)) g5(void) { |
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| 11 | } |
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| 12 | |
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| 13 | struct __attribute__((weak)) s0 {}; // expected-warning {{'weak' attribute only applies to variables, functions, and classes}} |
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| 14 | struct __attribute__((weak_import)) s1 {}; // expected-warning {{'weak_import' attribute only applies to variables and functions}} |
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| 15 | |
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| 16 | static int f() __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}} |
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| 17 | static int x __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}} |
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| 18 | |
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| 19 | // rdar://9538608 |
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| 20 | int C; // expected-note {{previous definition is here}} |
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| 21 | extern int C __attribute__((weak_import)); // expected-warning {{an already-declared variable is made a weak_import declaration}} |
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| 22 | |
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| 23 | static int pr14946_x; |
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| 24 | extern int pr14946_x __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}} |
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| 25 | |
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| 26 | static void pr14946_f(); |
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| 27 | void pr14946_f() __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}} |
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| 28 | |
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