diff options
Diffstat (limited to 'clang/test/Sema/attr-nocf_check.c')
-rw-r--r-- | clang/test/Sema/attr-nocf_check.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/clang/test/Sema/attr-nocf_check.c b/clang/test/Sema/attr-nocf_check.c new file mode 100644 index 00000000000..aab4eace890 --- /dev/null +++ b/clang/test/Sema/attr-nocf_check.c @@ -0,0 +1,23 @@ +// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -verify -fcf-protection=branch -target-feature +ibt -fsyntax-only %s + +// Function pointer definition. +typedef void (*FuncPointerWithNoCfCheck)(void) __attribute__((nocf_check)); // no-warning +typedef void (*FuncPointer)(void); + +// Dont allow function declaration and definition mismatch. +void __attribute__((nocf_check)) testNoCfCheck(); // expected-note {{previous declaration is here}} +void testNoCfCheck(){}; // expected-error {{conflicting types for 'testNoCfCheck'}} + +// No variable or parameter declaration +__attribute__((nocf_check)) int i; // expected-warning {{'nocf_check' attribute only applies to function}} +void testNoCfCheckImpl(double __attribute__((nocf_check)) i) {} // expected-warning {{'nocf_check' attribute only applies to function}} + +// Allow attributed function pointers as well as casting between attributed +// and non-attributed function pointers. +void testNoCfCheckMismatch(FuncPointer f) { + FuncPointerWithNoCfCheck fNoCfCheck = f; // expected-warning {{incompatible function pointer types}} + (*fNoCfCheck)(); // no-warning +} + +// 'nocf_check' Attribute has no parameters. +int testNoCfCheckParams() __attribute__((nocf_check(1))); // expected-error {{'nocf_check' attribute takes no arguments}} |