clang/test/Sema/pragma-section.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify -fms-extensions %s -triple x86_64-pc-win32
   2
   3 #pragma const_seg(".my_const") // expected-note 2 {{#pragma entered here}}
   4 extern const int a;
   5 const int a = 1; // expected-note 2 {{declared here}}
   6 #pragma data_seg(".my_const") // expected-note {{#pragma entered here}}
   7 int b = 1; // expected-error {{'b' causes a section type conflict with 'a'}}
   8 #pragma data_seg()
   9 int c = 1;
  10 __declspec(allocate(".my_const")) int d = 1; // expected-error {{'d' causes a section type conflict with 'a'}}
  11 #pragma data_seg("\u") // expected-error {{\u used with no following hex digits}}
  12 #pragma data_seg("a" L"b") // expected-warning {{expected non-wide string literal in '#pragma data_seg'}}
  13
  14 #pragma section(".my_seg", execute) // expected-note 2 {{#pragma entered her}}
  15 __declspec(allocate(".my_seg")) int int_my_seg;
  16 #pragma code_seg(".my_seg")
  17 void fn_my_seg(void){}
  18
  19 __declspec(allocate(".bad_seg")) int int_bad_seg = 1; // expected-note {{declared here}}
  20 #pragma code_seg(".bad_seg") // expected-note {{#pragma entered here}}
  21 void fn_bad_seg(void){} // expected-error {{'fn_bad_seg' causes a section type conflict with 'int_bad_seg'}}
  22
  23 #pragma bss_seg // expected-warning {{missing '(' after '#pragma bss_seg' - ignoring}}
  24 #pragma bss_seg(L".my_seg") // expected-warning {{expected push, pop or a string literal for the section name in '#pragma bss_seg' - ignored}}
  25 #pragma bss_seg(1) // expected-warning {{expected push, pop or a string literal for the section name in '#pragma bss_seg' - ignored}}
  26 #pragma bss_seg(push)
  27 #pragma bss_seg(push, ".my_seg")
  28 #pragma bss_seg(push, 1) // expected-warning {{expected a stack label or a string literal for the section name in '#pragma bss_seg'}}
  29 #pragma bss_seg ".my_seg" // expected-warning {{missing '(' after '#pragma bss_seg' - ignoring}}
  30 #pragma bss_seg(push, my_label, 1) // expected-warning {{expected a string literal for the section name in '#pragma bss_seg' - ignored}}
  31 #pragma bss_seg(".my_seg", 1) // expected-warning {{missing ')' after '#pragma bss_seg' - ignoring}}
  32 #pragma bss_seg(".my_seg" // expected-warning {{missing ')' after '#pragma bss_seg' - ignoring}}
  33
  34 #pragma section // expected-warning {{missing '(' after '#pragma section' - ignoring}}
  35 #pragma section( // expected-warning {{expected a string literal for the section name in '#pragma section' - ignored}}
  36 #pragma section(L".my_seg") // expected-warning {{expected a string literal for the section name in '#pragma section' - ignored}}
  37 #pragma section(".my_seg" // expected-warning {{missing ')' after '#pragma section' - ignoring}}
  38 #pragma section(".my_seg" 1  // expected-warning {{missing ')' after '#pragma section' - ignoring}}
  39 #pragma section(".my_seg",  // expected-warning {{expected action or ')' in '#pragma section' - ignored}}
  40 #pragma section(".my_seg", read) // expected-error {{this causes a section type conflict with a prior #pragma section}}
  41 #pragma section(".my_seg", bogus) // expected-warning {{unknown action 'bogus' for '#pragma section' - ignored}}
  42 #pragma section(".my_seg", nopage) // expected-warning {{known but unsupported action 'nopage' for '#pragma section' - ignored}}
  43 #pragma section(".my_seg", read, write) // expected-error {{this causes a section type conflict with a prior #pragma section}}
  44 #pragma section(".my_seg", read, write, 1) //  expected-warning {{expected action or ')' in '#pragma section' - ignored}}
  45
  46 #pragma bss_seg(".drectve") // expected-warning{{#pragma bss_seg(".drectve") has undefined behavior, use #pragma comment(linker, ...) instead}}
  47 #pragma code_seg(".drectve") // expected-warning{{#pragma code_seg(".drectve") has undefined behavior, use #pragma comment(linker, ...) instead}}
  48 #pragma const_seg(".drectve")  // expected-warning{{#pragma const_seg(".drectve") has undefined behavior, use #pragma comment(linker, ...) instead}}
  49 #pragma data_seg(".drectve")  // expected-warning{{#pragma data_seg(".drectve") has undefined behavior, use #pragma comment(linker, ...) instead}}
  50 #pragma code_seg(".my_seg")
  51
  52 // cl.exe doesn't warn on this, so match that.
  53 // (Technically it ICEs on this particular example, but if it's on a class then
  54 // it just doesn't warn.)
  55 __declspec(code_seg(".drectve")) void drectve_fn(void) {}
  56
  57 // This shouldn't warn; mingw users likely want to use
  58 //     __attribute__((section(".drective")))
  59 //     const char LinkerFlags[] = "-export:foo -export:bar";
  60 // for interop with gcc.
  61 __attribute__((section(".drectve"))) int drectve_int;