lld/test/MachO/x86-64-objc-stubs.s

   1 # REQUIRES: x86
   2
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t.o
   4 # RUN: %lld -arch x86_64 -lSystem -o %t.out %t.o
   5 # RUN: llvm-objdump --macho --section-headers %t.out > %t.txt
   6 # RUN: llvm-otool -vs __DATA __objc_selrefs %t.out >> %t.txt
   7 # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out >> %t.txt
   8 # RUN: FileCheck %s < %t.txt
   9
  10 # CHECK: Sections:
  11 # CHECK: __got            {{[0-9a-f]*}} [[#%x, GOTSTART:]] DATA
  12 # CHECK: __objc_selrefs   {{[0-9a-f]*}} [[#%x, SELSTART:]] DATA
  13
  14 # CHECK: Contents of (__DATA,__objc_selrefs) section
  15
  16 # CHECK-NEXT: {{[0-9a-f]*}}  __TEXT:__objc_methname:foo
  17 # CHECK-NEXT: {{[0-9a-f]*}}  __TEXT:__objc_methname:bar
  18 # CHECK-NEXT: [[#%x, FOOSELREF:]]  __TEXT:__objc_methname:foo
  19 # CHECK-NEXT: [[#%x, LENGTHSELREF:]]  __TEXT:__objc_methname:length
  20
  21 # CHECK: Contents of (__TEXT,__objc_stubs) section
  22
  23 # CHECK-NEXT: _objc_msgSend$foo:
  24 # CHECK-NEXT: [[#%x, PC1:]]
  25 # CHECK-SAME: movq    0x[[#%x, FOOSELREF - PC1 - 7]](%rip), %rsi
  26 # CHECK-NEXT: [[#%x, PC2:]]
  27 # CHECK-SAME: jmpq    *0x[[#%x, GOTSTART - PC2 - 6]](%rip)
  28
  29 # CHECK-NEXT: _objc_msgSend$length:
  30 # CHECK-NEXT: [[#%x, PC3:]]
  31 # CHECK-SAME: movq    0x[[#%x, LENGTHSELREF - PC3 - 7]](%rip), %rsi
  32 # CHECK-NEXT: [[#%x, PC4:]]
  33 # CHECK-SAME: jmpq    *0x[[#%x, GOTSTART - PC4 - 6]](%rip)
  34
  35 # CHECK-EMPTY:
  36
  37 .section  __TEXT,__objc_methname,cstring_literals
  38 lselref1:
  39   .asciz  "foo"
  40 lselref2:
  41   .asciz  "bar"
  42
  43 .section  __DATA,__objc_selrefs,literal_pointers,no_dead_strip
  44 .p2align  3
  45 .quad lselref1
  46 .quad lselref2
  47
  48 .text
  49 .globl _objc_msgSend
  50 _objc_msgSend:
  51   ret
  52
  53 .globl _main
  54 _main:
  55   callq  _objc_msgSend$length
  56   callq  _objc_msgSend$foo
  57   callq  _objc_msgSend$foo
  58   ret