31 lines · c
1// RUN: %clang_cc1 -verify -fsyntax-only %s2 3extern int f0(void) __attribute__((weak));4extern int g0 __attribute__((weak));5extern int g1 __attribute__((weak_import));6int f2(void) __attribute__((weak));7int g2 __attribute__((weak));8int g3 __attribute__((weak_import)); // expected-warning {{'weak_import' attribute cannot be specified on a definition}}9int __attribute__((weak_import)) g4(void);10void __attribute__((weak_import)) g5(void) {11}12 13struct __attribute__((weak)) s0 {}; // expected-warning {{'weak' attribute only applies to variables, functions, and classes}}14struct __attribute__((weak_import)) s1 {}; // expected-warning {{'weak_import' attribute only applies to variables and functions}}15 16static int f(void) __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}17static int x __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}18 19int C; // expected-note {{previous definition is here}}20extern int C __attribute__((weak_import)); // expected-warning {{'C' cannot be declared 'weak_import'}}21 22int C2; // expected-note {{previous definition is here}}23extern int C2;24extern int C2 __attribute__((weak_import)); // expected-warning {{'C2' cannot be declared 'weak_import'}}25 26static int pr14946_x;27extern int pr14946_x __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}28 29static void pr14946_f(void);30void pr14946_f(void) __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}31