| 1 | // RUN: %clang_cc1 -triple=i386-unknown-unknown -verify -fcf-protection=branch -std=c++11 -fsyntax-only %s |
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| 2 | |
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| 3 | // Function pointer definition. |
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| 4 | [[gnu::nocf_check]] typedef void (*FuncPointerWithNoCfCheck)(void); // no-warning |
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| 5 | typedef void (*FuncPointer)(void); |
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| 6 | |
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| 7 | // Dont allow function declaration and definition mismatch. |
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| 8 | [[gnu::nocf_check]] void testNoCfCheck(); // expected-note {{previous declaration is here}} |
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| 9 | void testNoCfCheck(){}; // expected-error {{conflicting types for 'testNoCfCheck'}} |
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| 10 | |
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| 11 | // No variable or parameter declaration |
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| 12 | int [[gnu::nocf_check]] i; // expected-error {{'nocf_check' attribute cannot be applied to types}} |
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| 13 | void testNoCfCheckImpl(double i [[gnu::nocf_check]]) {} // expected-warning {{'nocf_check' attribute only applies to functions and function pointers}} |
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| 14 | |
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| 15 | // Allow attributed function pointers as well as casting between attributed |
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| 16 | // and non-attributed function pointers. |
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| 17 | void testNoCfCheckMismatch(FuncPointer f) { |
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| 18 | FuncPointerWithNoCfCheck fNoCfCheck = f; // expected-error {{cannot initialize a variable of type}} |
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| 19 | (*fNoCfCheck)(); // no-warning |
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| 20 | } |
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| 21 | |
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| 22 | // 'nocf_check' Attribute has no parameters. |
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| 23 | [[gnu::nocf_check(1)]] int testNoCfCheckParams(); // expected-error {{'nocf_check' attribute takes no arguments}} |
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| 24 | |
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