llvm/test/tools/llvm-objcopy/MachO/weaken.s

   1 # REQUIRES: x86-registered-target
   2
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %s -o %t
   4
   5 # RUN: llvm-objcopy -W _func %t %t2
   6 # RUN: llvm-readobj --symbols %t2 | FileCheck %s -check-prefix=CHECK-1
   7
   8 # CHECK-1:      Symbol {
   9 # CHECK-1-NEXT:   Name: _foo (1)
  10 # CHECK-1-NEXT:   Extern
  11 # CHECK-1-NEXT:   Type: Section (0xE)
  12 # CHECK-1-NEXT:   Section: __const (0x2)
  13 # CHECK-1-NEXT:   RefType: UndefinedNonLazy (0x0)
  14 # CHECK-1-NEXT:   Flags [ (0x0)
  15 # CHECK-1-NEXT:   ]
  16 # CHECK-1-NEXT:   Value: 0x0
  17 # CHECK-1-NEXT: }
  18 # CHECK-1-NEXT: Symbol {
  19 # CHECK-1-NEXT:   Name: _func (6)
  20 # CHECK-1-NEXT:   Extern
  21 # CHECK-1-NEXT:   Type: Section (0xE)
  22 # CHECK-1-NEXT:   Section: __text (0x1)
  23 # CHECK-1-NEXT:   RefType: UndefinedNonLazy (0x0)
  24 # CHECK-1-NEXT:   Flags [ (0x80)
  25 # CHECK-1-NEXT:     WeakDef (0x80)
  26 # CHECK-1-NEXT:   ]
  27 # CHECK-1-NEXT:   Value: 0x0
  28 # CHECK-1-NEXT: }
  29
  30 # RUN: echo _foo > %t.weaken.txt
  31 # RUN: echo _func >> %t.weaken.txt
  32 # RUN: llvm-objcopy --weaken-symbols %t.weaken.txt %t %t3
  33 # RUN: llvm-readobj --symbols %t3 | FileCheck %s -check-prefix=CHECK-2
  34
  35 # CHECK-2:      Symbol {
  36 # CHECK-2-NEXT:   Name: _foo (1)
  37 # CHECK-2-NEXT:   Extern
  38 # CHECK-2-NEXT:   Type: Section (0xE)
  39 # CHECK-2-NEXT:   Section: __const (0x2)
  40 # CHECK-2-NEXT:   RefType: UndefinedNonLazy (0x0)
  41 # CHECK-2-NEXT:   Flags [ (0x80)
  42 # CHECK-2-NEXT:     WeakDef (0x80)
  43 # CHECK-2-NEXT:   ]
  44 # CHECK-2-NEXT:   Value: 0x0
  45 # CHECK-2-NEXT: }
  46 # CHECK-2-NEXT: Symbol {
  47 # CHECK-2-NEXT:   Name: _func (6)
  48 # CHECK-2-NEXT:   Extern
  49 # CHECK-2-NEXT:   Type: Section (0xE)
  50 # CHECK-2-NEXT:   Section: __text (0x1)
  51 # CHECK-2-NEXT:   RefType: UndefinedNonLazy (0x0)
  52 # CHECK-2-NEXT:   Flags [ (0x80)
  53 # CHECK-2-NEXT:     WeakDef (0x80)
  54 # CHECK-2-NEXT:   ]
  55 # CHECK-2-NEXT:   Value: 0x0
  56 # CHECK-2-NEXT: }
  57
  58 ## Verify --weaken-symbol plays nice with --redefine-sym.
  59 # RUN: llvm-objcopy -W _foo --redefine-sym _foo=_bar %t %t4
  60 # RUN: llvm-readobj --symbols %t4 | FileCheck %s -check-prefix=CHECK-3
  61
  62 # CHECK-3:      Symbol {
  63 # CHECK-3-NEXT:   Name: _bar (1)
  64 # CHECK-3-NEXT:   Extern
  65 # CHECK-3-NEXT:   Type: Section (0xE)
  66 # CHECK-3-NEXT:   Section: __const (0x2)
  67 # CHECK-3-NEXT:   RefType: UndefinedNonLazy (0x0)
  68 # CHECK-3-NEXT:   Flags [ (0x80)
  69 # CHECK-3-NEXT:     WeakDef (0x80)
  70 # CHECK-3-NEXT:   ]
  71 # CHECK-3-NEXT:   Value: 0x0
  72 # CHECK-3-NEXT: }
  73 # CHECK-3-NEXT: Symbol {
  74 # CHECK-3-NEXT:   Name: _func (6)
  75 # CHECK-3-NEXT:   Extern
  76 # CHECK-3-NEXT:   Type: Section (0xE)
  77 # CHECK-3-NEXT:   Section: __text (0x1)
  78 # CHECK-3-NEXT:   RefType: UndefinedNonLazy (0x0)
  79 # CHECK-3-NEXT:   Flags [ (0x0)
  80 # CHECK-3-NEXT:   ]
  81 # CHECK-3-NEXT:   Value: 0x0
  82 # CHECK-3-NEXT: }
  83
  84 .globl _func
  85 _func:
  86
  87 .section __TEXT,__const
  88 .globl _foo
  89 _foo: