1 // RUN: %clang_cc1 -verify -fsyntax-only -triple x86_64-linux-gnu %s
2
3 int x __attribute__((section(
4 42))); // expected-error {{expected string literal as argument of 'section' attribute}}
5
6
7 // PR6007
test()8 void test() {
9 __attribute__((section("NEAR,x"))) int n1; // expected-error {{'section' attribute only applies to functions, global variables, Objective-C methods, and Objective-C properties}}
10 __attribute__((section("NEAR,x"))) static int n2; // ok.
11 }
12
13 // pr9356
14 void __attribute__((section("foo"))) test2(); // expected-note {{previous attribute is here}}
test2()15 void __attribute__((section("bar"))) test2() {} // expected-warning {{section does not match previous declaration}}
16
17 enum __attribute__((section("NEAR,x"))) e { one }; // expected-error {{'section' attribute only applies to}}
18
19 extern int a; // expected-note {{previous declaration is here}}
20 int *b = &a;
21 extern int a __attribute__((section("foo,zed"))); // expected-warning {{section attribute is specified on redeclared variable}}
22
23 // Not a warning.
24 extern int c;
25 int c __attribute__((section("foo,zed")));
26
27 // Also OK.
28 struct r_debug {};
29 extern struct r_debug _r_debug;
30 struct r_debug _r_debug __attribute__((nocommon, section(".r_debug,bar")));
31
32 namespace override {
33 struct A {
foverride::A34 __attribute__((section("foo"))) virtual void f(){};
35 };
36 struct B : A {
foverride::B37 void f() {} // ok
38 };
39 struct C : A {
40 __attribute__((section("bar"))) void f(); // expected-note {{previous}}
41 };
42 __attribute__((section("baz"))) // expected-warning {{section does not match}}
f()43 void C::f() {}
44 }
45
46 // Check for section type conflicts between global variables and function templates
template_fn1()47 template <typename> __attribute__((section("template_fn1"))) void template_fn1() {} // expected-note {{declared here}}
48 const int const_global_var __attribute__((section("template_fn1"))) = 42; // expected-error {{'const_global_var' causes a section type conflict with 'template_fn1'}}
49 int mut_global_var __attribute__((section("template_fn2"))) = 42; // expected-note {{declared here}}
template_fn2()50 template <typename> __attribute__((section("template_fn2"))) void template_fn2() {} // expected-error {{'template_fn2' causes a section type conflict with 'mut_global_var'}}
51
52 namespace mutable_member {
53 struct t1 {
54 mutable int i;
55 };
56 extern const t1 v1;
57 __attribute__((section("mutable_member"))) const t1 v1{};
58 extern int i;
59 __attribute__((section("mutable_member"))) int i{};
60 } // namespace mutable_member
61
62 namespace non_trivial_ctor {
63 struct t1 {
64 t1();
t1non_trivial_ctor::t165 constexpr t1(int) { }
66 };
67 extern const t1 v1;
68 __attribute__((section("non_trivial_ctor"))) const t1 v1; // expected-note {{declared here}}
69 extern const t1 v2;
70 __attribute__((section("non_trivial_ctor"))) const t1 v2{3}; // expected-error {{'v2' causes a section type conflict with 'v1'}}
71 } // namespace non_trivial_ctor
72