clang/test/Sema/attr-section.c

   1 // RUN: %clang_cc1 -verify -fsyntax-only -triple x86_64-apple-darwin9 %s
   2
   3 int x __attribute__((section(
   4    42)));  // expected-error {{'section' attribute requires a string}}
   5
   6
   7 // rdar://4341926
   8 int y __attribute__((section(
   9    "sadf"))); // expected-error {{mach-o section specifier requires a segment and section separated by a comma}}
  10
  11 // PR6007
  12 void test(void) {
  13   __attribute__((section("NEAR,x"))) int n1; // expected-error {{'section' attribute only applies to functions, global variables, Objective-C methods, and Objective-C properties}}
  14   __attribute__((section("NEAR,x"))) static int n2; // ok.
  15 }
  16
  17 // pr9356
  18 void __attribute__((section("foo,zed"))) test2(void); // expected-note {{previous attribute is here}}
  19 void __attribute__((section("bar,zed"))) test2(void) {} // expected-warning {{section does not match previous declaration}}
  20
  21 enum __attribute__((section("NEAR,x"))) e { one }; // expected-error {{'section' attribute only applies to}}
  22
  23 extern int a; // expected-note {{previous declaration is here}}
  24 int *b = &a;
  25 extern int a __attribute__((section("foo,zed"))); // expected-warning {{section attribute is specified on redeclared variable}}
  26
  27 // Not a warning.
  28 int c;
  29 int c __attribute__((section("seg1,sec1")));
  30
  31 // Also OK.
  32 struct r_debug {};
  33 extern struct r_debug _r_debug;
  34 struct r_debug _r_debug __attribute__((nocommon, section(".r_debug,bar")));
  35
  36 // Section type conflicts between functions and variables
  37 void test3(void) __attribute__((section("seg3,sec3"))); // expected-note {{declared here}}
  38 void test3(void) {}
  39 const int const_global_var __attribute__((section("seg3,sec3"))) = 10; // expected-error {{'const_global_var' causes a section type conflict with 'test3'}}
  40
  41 void test4(void) __attribute__((section("seg4,sec4"))); // expected-note {{declared here}}
  42 void test4(void) {}
  43 int mut_global_var __attribute__((section("seg4,sec4"))) = 10; // expected-error {{'mut_global_var' causes a section type conflict with 'test4'}}
  44
  45 const int global_seg5sec5 __attribute__((section("seg5,sec5"))) = 10; // expected-note {{declared here}}
  46 void test5(void) __attribute__((section("seg5,sec5")));               // expected-error {{'test5' causes a section type conflict with 'global_seg5sec5'}}
  47 void test5(void) {}
  48
  49 void test6(void);
  50 const int global_seg6sec6 __attribute__((section("seg6,sec6"))) = 10; // expected-note {{declared here}}
  51 void test6(void) __attribute__((section("seg6,sec6")));               // expected-error {{'test6' causes a section type conflict with 'global_seg6sec6'}}
  52 void test6(void) {}