1 // RUN: %clang_cc1 -fsyntax-only -Wthread-safety -verify %s 2 3 typedef int __attribute__((capability("role"))) ThreadRole; 4 struct __attribute__((shared_capability("mutex"))) Mutex {}; 5 struct NotACapability {}; 6 7 // Put capability attributes on unions 8 union __attribute__((capability("mutex"))) MutexUnion { int a; char* b; }; 9 typedef union { int a; char* b; } __attribute__((capability("mutex"))) MutexUnion2; 10 11 // Test an invalid capability name 12 struct __attribute__((capability("wrong"))) IncorrectName {}; // expected-warning {{invalid capability name 'wrong'; capability name must be 'mutex' or 'role'}} 13 14 int Test1 __attribute__((capability("test1"))); // expected-error {{'capability' attribute only applies to structs, unions, and typedefs}} 15 int Test2 __attribute__((shared_capability("test2"))); // expected-error {{'shared_capability' attribute only applies to structs, unions, and typedefs}} 16 int Test3 __attribute__((acquire_capability("test3"))); // expected-warning {{'acquire_capability' attribute only applies to functions}} 17 int Test4 __attribute__((try_acquire_capability("test4"))); // expected-error {{'try_acquire_capability' attribute only applies to functions}} 18 int Test5 __attribute__((release_capability("test5"))); // expected-warning {{'release_capability' attribute only applies to functions}} 19 20 struct __attribute__((capability(12))) Test3 {}; // expected-error {{'capability' attribute requires a string}} 21 struct __attribute__((shared_capability(Test2))) Test4 {}; // expected-error {{'shared_capability' attribute requires a string}} 22 23 struct __attribute__((capability)) Test5 {}; // expected-error {{'capability' attribute takes one argument}} 24 struct __attribute__((shared_capability("test1", 12))) Test6 {}; // expected-error {{'shared_capability' attribute takes one argument}} 25 26 struct NotACapability BadCapability; 27 ThreadRole GUI, Worker; Func1(void)28void Func1(void) __attribute__((requires_capability(GUI))) {} Func2(void)29void Func2(void) __attribute__((requires_shared_capability(Worker))) {} 30 Func3(void)31void Func3(void) __attribute__((requires_capability)) {} // expected-error {{'requires_capability' attribute takes at least 1 argument}} Func4(void)32void Func4(void) __attribute__((requires_shared_capability)) {} // expected-error {{'requires_shared_capability' attribute takes at least 1 argument}} 33 Func5(void)34void Func5(void) __attribute__((requires_capability(1))) {} // expected-warning {{'requires_capability' attribute requires arguments whose type is annotated with 'capability' attribute; type here is 'int'}} Func6(void)35void Func6(void) __attribute__((requires_shared_capability(BadCapability))) {} // expected-warning {{'requires_shared_capability' attribute requires arguments whose type is annotated with 'capability' attribute; type here is 'struct NotACapability'}} 36 Func7(void)37void Func7(void) __attribute__((assert_capability(GUI))) {} Func8(void)38void Func8(void) __attribute__((assert_shared_capability(GUI))) {} 39 Func9(void)40void Func9(void) __attribute__((assert_capability())) {} // expected-error {{'assert_capability' attribute takes one argument}} Func10(void)41void Func10(void) __attribute__((assert_shared_capability())) {} // expected-error {{'assert_shared_capability' attribute takes one argument}} 42 Func11(void)43void Func11(void) __attribute__((acquire_capability(GUI))) {} Func12(void)44void Func12(void) __attribute__((acquire_shared_capability(GUI))) {} 45 Func15(void)46void Func15(void) __attribute__((release_capability(GUI))) {} Func16(void)47void Func16(void) __attribute__((release_shared_capability(GUI))) {} Func17(void)48void Func17(void) __attribute__((release_generic_capability(GUI))) {} 49 Func21(void)50void Func21(void) __attribute__((try_acquire_capability(1))) {} Func22(void)51void Func22(void) __attribute__((try_acquire_shared_capability(1))) {} 52 Func23(void)53void Func23(void) __attribute__((try_acquire_capability(1, GUI))) {} Func24(void)54void Func24(void) __attribute__((try_acquire_shared_capability(1, GUI))) {} 55 Func25(void)56void Func25(void) __attribute__((try_acquire_capability())) {} // expected-error {{'try_acquire_capability' attribute takes at least 1 argument}} Func26(void)57void Func26(void) __attribute__((try_acquire_shared_capability())) {} // expected-error {{'try_acquire_shared_capability' attribute takes at least 1 argument}} 58 59 // Test that boolean logic works with capability attributes 60 void Func27(void) __attribute__((requires_capability(!GUI))); 61 void Func28(void) __attribute__((requires_capability(GUI && Worker))); 62 void Func29(void) __attribute__((requires_capability(GUI || Worker))); 63 void Func30(void) __attribute__((requires_capability((Worker || Worker) && !GUI))); 64 65 int AlsoNotACapability; 66 void Func31(void) __attribute__((requires_capability(GUI && AlsoNotACapability))); // expected-warning {{'requires_capability' attribute requires arguments whose type is annotated with 'capability' attribute; type here is 'int'}} 67