lld/test/MachO/symtab.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t && split-file %s %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/test.s -o %t/test.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/test2.s -o %t/test2.o
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/libfoo.s -o %t/libfoo.o
   6 # RUN: %lld -dylib %t/libfoo.o -o %t/libfoo.dylib
   7 # RUN: %lld -lSystem %t/test.o %t/test2.o %t/libfoo.dylib -o %t/test
   8
   9 # RUN: llvm-readobj --syms --sort-symbols=type,name --macho-dysymtab %t/test | FileCheck %s
  10 # CHECK:      Symbols [
  11 # CHECK-NEXT:   Symbol {
  12 # CHECK-NEXT:     Name: _dynamic
  13 # CHECK-NEXT:     Extern
  14 # CHECK-NEXT:     Type: Undef (0x0)
  15 # CHECK-NEXT:     Section:  (0x0)
  16 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
  17 # CHECK-NEXT:     Flags [ (0x200)
  18 # CHECK-NEXT:       AltEntry (0x200)
  19 # CHECK-NEXT:     ]
  20 # CHECK-NEXT:     Value: 0x0
  21 # CHECK-NEXT:   }
  22 # CHECK-NEXT:   Symbol {
  23 # CHECK-NEXT:     Name: dyld_stub_binder
  24 # CHECK-NEXT:     Extern
  25 # CHECK-NEXT:     Type: Undef (0x0)
  26 # CHECK-NEXT:     Section:  (0x0)
  27 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
  28 # CHECK-NEXT:     Flags [ (0x100)
  29 # CHECK-NEXT:       SymbolResolver (0x100)
  30 # CHECK-NEXT:     ]
  31 # CHECK-NEXT:     Value: 0x0
  32 # CHECK-NEXT:   }
  33 # CHECK-NEXT:   Symbol {
  34 # CHECK-NEXT:     Name: __dyld_private
  35 # CHECK-NEXT:     Type: Section (0xE)
  36 # CHECK-NEXT:     Section: __data
  37 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
  38 # CHECK-NEXT:     Flags [ (0x0)
  39 # CHECK-NEXT:     ]
  40 # CHECK-NEXT:     Value: 0x1{{[0-9a-f]*}}
  41 # CHECK-NEXT:   }
  42 # CHECK-NEXT:   Symbol {
  43 # CHECK-NEXT:     Name: _local
  44 # CHECK-NEXT:     Type: Section (0xE)
  45 # CHECK-NEXT:     Section: __data
  46 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
  47 # CHECK-NEXT:     Flags [ (0x0)
  48 # CHECK-NEXT:     ]
  49 # CHECK-NEXT:     Value: 0x1{{[0-9a-f]*}}
  50 # CHECK-NEXT:   }
  51 # CHECK-NEXT:   Symbol {
  52 # CHECK-NEXT:     Name: __mh_execute_header
  53 # CHECK-NEXT:     Extern
  54 # CHECK-NEXT:     Type: Section (0xE)
  55 # CHECK-NEXT:     Section: __text (0x1)
  56 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
  57 # CHECK-NEXT:     Flags [ (0x10)
  58 # CHECK-NEXT:       ReferencedDynamically (0x10)
  59 # CHECK-NEXT:     ]
  60 # CHECK-NEXT:     Value: 0x100000000
  61 # CHECK-NEXT:   }
  62 # CHECK-NEXT:   Symbol {
  63 # CHECK-NEXT:     Name: _external
  64 # CHECK-NEXT:     Extern
  65 # CHECK-NEXT:     Type: Section (0xE)
  66 # CHECK-NEXT:     Section: __data
  67 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
  68 # CHECK-NEXT:     Flags [ (0x0)
  69 # CHECK-NEXT:     ]
  70 # CHECK-NEXT:     Value: 0x1{{[0-9a-f]*}}
  71 # CHECK-NEXT:   }
  72 # CHECK-NEXT:   Symbol {
  73 # CHECK-NEXT:     Name: _external_weak
  74 # CHECK-NEXT:     Extern
  75 # CHECK-NEXT:     Type: Section (0xE)
  76 # CHECK-NEXT:     Section: __text (0x1)
  77 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
  78 # CHECK-NEXT:     Flags [ (0x80)
  79 # CHECK-NEXT:       WeakDef (0x80)
  80 # CHECK-NEXT:     ]
  81 # CHECK-NEXT:     Value: 0x1{{[0-9a-f]*}}
  82 # CHECK-NEXT:   }
  83 # CHECK-NEXT:   Symbol {
  84 # CHECK-NEXT:     Name: _main
  85 # CHECK-NEXT:     Extern
  86 # CHECK-NEXT:     Type: Section (0xE)
  87 # CHECK-NEXT:     Section: __text (0x1)
  88 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
  89 # CHECK-NEXT:     Flags [ (0x0)
  90 # CHECK-NEXT:     ]
  91 # CHECK-NEXT:     Value: 0x1{{[0-9a-f]*}}
  92 # CHECK-NEXT:   }
  93 # CHECK-NEXT:   Symbol {
  94 # CHECK-NEXT:     Name: _private_external
  95 # CHECK-NEXT:     PrivateExtern
  96 # CHECK-NEXT:     Type: Section (0xE)
  97 # CHECK-NEXT:     Section: __text (0x1)
  98 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
  99 # CHECK-NEXT:     Flags [ (0x0)
 100 # CHECK-NEXT:     ]
 101 # CHECK-NEXT:     Value: 0x1{{[0-9a-f]*}}
 102 # CHECK-NEXT:   }
 103 # CHECK-NEXT:   Symbol {
 104 # CHECK-NEXT:     Name: _private_external_weak
 105 # CHECK-NEXT:     PrivateExtern
 106 # CHECK-NEXT:     Type: Section (0xE)
 107 # CHECK-NEXT:     Section: __text (0x1)
 108 # CHECK-NEXT:     RefType: UndefinedNonLazy (0x0)
 109 # CHECK-NEXT:     Flags [ (0x0)
 110 # CHECK-NEXT:     ]
 111 # CHECK-NEXT:     Value: 0x1{{[0-9a-f]*}}
 112 # CHECK-NEXT:   }
 113 # CHECK-NEXT: ]
 114 # CHECK-NEXT: Dysymtab {
 115 # CHECK-NEXT:   ilocalsym: 0
 116 # CHECK-NEXT:   nlocalsym: 4
 117 # CHECK-NEXT:   iextdefsym: 4
 118 # CHECK-NEXT:   nextdefsym: 4
 119 # CHECK-NEXT:   iundefsym: 8
 120 # CHECK-NEXT:   nundefsym: 2
 121
 122 ## Verify that the first entry in the StringTable is a space, and that
 123 ## unreferenced symbols aren't emitted.
 124 # RUN: obj2yaml %t/test | FileCheck %s --check-prefix=YAML
 125 # YAML:      StringTable:
 126 # YAML-NEXT: ' '
 127 # YAML-NOT: _unreferenced
 128
 129 #--- libfoo.s
 130 .globl _dynamic
 131 _dynamic:
 132
 133 #--- test.s
 134 .globl _main, _external, _private_external, _external_weak, _private_external_weak, _unreferenced
 135
 136 .data
 137 _external:
 138   .space 1
 139 _local:
 140   .space 1
 141
 142 .text
 143 .weak_definition _external_weak
 144 _external_weak:
 145   .space 1
 146
 147 .private_extern _private_external
 148 _private_external:
 149   .space 1
 150
 151 .weak_definition _private_external_weak
 152 .private_extern _private_external_weak
 153 _private_external_weak:
 154   .space 1
 155
 156 _main:
 157   callq _private_external
 158   callq _dynamic
 159   mov $0, %rax
 160   ret
 161
 162 #--- test2.s
 163 ## These are both already in test.s and should make it into the symbol table
 164 ## just once.
 165 .globl _external_weak, _private_external_weak
 166 .text
 167 .weak_definition _external_weak
 168 _external_weak:
 169   .space 1
 170 .weak_definition _private_external_weak
 171 .private_extern _private_external_weak
 172 _private_external_weak:
 173   .space 1