blob: 9ca1bb173439e443a139f127e65c6bee6da1793b [file] [log] [blame]
// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -verify -fcf-protection=branch -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}}