test/MC/COFF/weak.s

   1 // This tests that default-null weak symbols (a GNU extension) are created
   2 // properly via the .weak directive.
   3
   4 // RUN: llvm-mc -filetype=obj -triple i686-pc-win32 < %s | coff-dump.py | FileCheck %s
   5
   6     .def    _main;
   7     .scl    2;
   8     .type   32;
   9     .endef
  10     .text
  11     .globl  _main
  12     .align  16, 0x90
  13 _main:                                  # @main
  14 # BB#0:                                 # %entry
  15     subl    $4, %esp
  16     movl    $_test_weak, %eax
  17     testl   %eax, %eax
  18     je      LBB0_2
  19 # BB#1:                                 # %if.then
  20     calll   _test_weak
  21     movl    $1, %eax
  22     addl    $4, %esp
  23     ret
  24 LBB0_2:                                 # %return
  25     xorl    %eax, %eax
  26     addl    $4, %esp
  27     ret
  28
  29     .weak   _test_weak
  30
  31 // CHECK: Symbols = [
  32
  33 // CHECK:      Name               = _test_weak
  34 // CHECK-NEXT: Value              = 0
  35 // CHECK-NEXT: SectionNumber      = 0
  36 // CHECK-NEXT: SimpleType         = IMAGE_SYM_TYPE_NULL (0)
  37 // CHECK-NEXT: ComplexType        = IMAGE_SYM_DTYPE_NULL (0)
  38 // CHECK-NEXT: StorageClass       = IMAGE_SYM_CLASS_WEAK_EXTERNAL (105)
  39 // CHECK-NEXT: NumberOfAuxSymbols = 1
  40 // CHECK-NEXT: AuxillaryData      =
  41 // CHECK-NEXT: 05 00 00 00 02 00 00 00 - 00 00 00 00 00 00 00 00 |................|
  42 // CHECK-NEXT: 00 00                                             |..|
  43
  44 // CHECK:      Name               = .weak._test_weak.default
  45 // CHECK-NEXT: Value              = 0
  46 // CHECK-NEXT: SectionNumber      = 65535
  47 // CHECK-NEXT: SimpleType         = IMAGE_SYM_TYPE_NULL (0)
  48 // CHECK-NEXT: ComplexType        = IMAGE_SYM_DTYPE_NULL (0)
  49 // CHECK-NEXT: StorageClass       = IMAGE_SYM_CLASS_EXTERNAL (2)
  50 // CHECK-NEXT: NumberOfAuxSymbols = 0
  51 // CHECK-NEXT: AuxillaryData      =