lld/test/COFF/link-dll-stdcall.s

   1 # REQUIRES: x86
   2
   3 ## Test creating a DLL and linking against the DLL without using an import
   4 ## library.
   5
   6 ## Test on i386 with stdcall/fastcall/vectorcall decorated symbols.
   7
   8 ## Check that we normally warn about these fixups. If -stdcall-fixup:no
   9 ## (--disable-stdcall-fixup on the MinGW linker level) is passed, we don't
  10 ## do these fixups. If we -stdcall-fixup (--enable-stdcall-fixup on the MinGW
  11 ## linker level) is passed, we don't warn about it at all.
  12
  13 # RUN: split-file %s %t.dir
  14
  15 # RUN: llvm-mc -filetype=obj -triple=i386-windows-gnu %t.dir/lib.s -o %t.lib.o
  16 # RUN: lld-link -safeseh:no -noentry -dll -def:%t.dir/lib.def %t.lib.o -out:%t.lib.dll -implib:%t.implib.lib
  17 # RUN: llvm-mc -filetype=obj -triple=i386-windows-gnu %t.dir/main.s -o %t.main.o
  18 # RUN: lld-link -lldmingw %t.main.o -out:%t.main.exe %t.lib.dll -opt:noref 2>&1 | FileCheck --check-prefix=LOG %s
  19 # RUN: llvm-readobj --coff-imports %t.main.exe | FileCheck %s
  20 # RUN: not lld-link -lldmingw %t.main.o -out:%t.main.exe %t.lib.dll -opt:noref -stdcall-fixup:no 2>&1 | FileCheck --check-prefix=ERROR %s
  21 # RUN: lld-link -lldmingw %t.main.o -out:%t.main.exe %t.lib.dll -opt:noref -stdcall-fixup 2>&1 | count 0
  22
  23 #--- lib.s
  24   .text
  25   .globl  _stdcall@8
  26   .globl  @fastcall@8
  27   .globl  vectorcall@@8
  28   .globl  __underscored
  29 _stdcall@8:
  30   movl    8(%esp), %eax
  31   addl    4(%esp), %eax
  32   retl    $8
  33 @fastcall@8:
  34   movl    8(%esp), %eax
  35   addl    4(%esp), %eax
  36   retl    $8
  37 vectorcall@@8:
  38   movl    8(%esp), %eax
  39   addl    4(%esp), %eax
  40   retl    $8
  41 __underscored:
  42   ret
  43
  44 #--- lib.def
  45 EXPORTS
  46 stdcall
  47 fastcall
  48 vectorcall
  49 _underscored
  50
  51 #--- main.s
  52 .text
  53 .global _mainCRTStartup
  54 _mainCRTStartup:
  55   pushl   $2
  56   pushl   $1
  57   calll   _stdcall@8
  58   movl    $1, %ecx
  59   movl    $2, %edx
  60   calll   @fastcall@8
  61   movl    $1, %ecx
  62   movl    $2, %edx
  63   calll   vectorcall@@8
  64   pushl   $2
  65   pushl   $1
  66   calll   __underscored
  67   addl    $8, %esp
  68   xorl    %eax, %eax
  69   popl    %ebp
  70   retl
  71
  72 # CHECK:      Import {
  73 # CHECK-NEXT:   Name: link-dll-stdcall.s.tmp.lib.dll
  74 # CHECK-NEXT:   ImportLookupTableRVA:
  75 # CHECK-NEXT:   ImportAddressTableRVA
  76 # CHECK-NEXT:   Symbol: _underscored
  77 # CHECK-NEXT:   Symbol: fastcall
  78 # CHECK-NEXT:   Symbol: stdcall
  79 # CHECK-NEXT:   Symbol: vectorcall
  80 # CHECK-NEXT: }
  81
  82 # LOG-DAG: Resolving vectorcall@@8 by linking to _vectorcall
  83 # LOG-DAG: Resolving @fastcall@8 by linking to _fastcall
  84 # LOG-DAG: Resolving _stdcall@8 by linking to _stdcall
  85
  86 # ERROR-DAG: undefined symbol: _stdcall@8
  87 # ERROR-DAG: undefined symbol: @fastcall@8
  88 # ERROR-DAG: undefined symbol: vectorcall@@8