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 # RUN: %no-fatal-warnings-lld -arch x86_64 -lSystem -o %t.out %t.o -objc_stubs_small 2>&1 | FileCheck %s --check-prefix=WARNING
  10
  11 # WARNING: warning: -objc_stubs_small is not yet implemented, defaulting to -objc_stubs_fast
  12
  13 # RUN: %lld -arch x86_64 -lSystem -o %t-icfsafe.out --icf=safe %t.o
  14 # RUN: llvm-otool -vs __DATA __objc_selrefs %t-icfsafe.out | FileCheck %s --check-prefix=ICF
  15 # RUN: %lld -arch x86_64 -lSystem -o %t-icfall.out --icf=all %t.o
  16 # RUN: llvm-otool -vs __DATA __objc_selrefs %t-icfall.out | FileCheck %s --check-prefix=ICF
  17
  18 # CHECK: Sections:
  19 # CHECK: __got            {{[0-9a-f]*}} [[#%x, GOTSTART:]] DATA
  20 # CHECK: __objc_selrefs   {{[0-9a-f]*}} [[#%x, SELSTART:]] DATA
  21
  22 # CHECK: Contents of (__DATA,__objc_selrefs) section
  23
  24 # CHECK-NEXT: {{[0-9a-f]*}}  __TEXT:__objc_methname:foo
  25 # CHECK-NEXT: {{[0-9a-f]*}}  __TEXT:__objc_methname:bar
  26 # CHECK-NEXT: [[#%x, FOOSELREF:]]  __TEXT:__objc_methname:foo
  27 # CHECK-NEXT: [[#%x, LENGTHSELREF:]]  __TEXT:__objc_methname:length
  28
  29 # ICF: Contents of (__DATA,__objc_selrefs) section
  30
  31 # ICF-NEXT: {{[0-9a-f]*}}  __TEXT:__objc_methname:foo
  32 # ICF-NEXT: {{[0-9a-f]*}}  __TEXT:__objc_methname:bar
  33 # ICF-NEXT: {{[0-9a-f]*}}  __TEXT:__objc_methname:length
  34 # ICF-EMPTY:
  35
  36 # CHECK: Contents of (__TEXT,__objc_stubs) section
  37
  38 # CHECK-NEXT: _objc_msgSend$foo:
  39 # CHECK-NEXT: [[#%x, PC1:]]
  40 # CHECK-SAME: movq    0x[[#%x, FOOSELREF - PC1 - 7]](%rip), %rsi
  41 # CHECK-NEXT: [[#%x, PC2:]]
  42 # CHECK-SAME: jmpq    *0x[[#%x, GOTSTART - PC2 - 6]](%rip)
  43
  44 # CHECK-NEXT: _objc_msgSend$length:
  45 # CHECK-NEXT: [[#%x, PC3:]]
  46 # CHECK-SAME: movq    0x[[#%x, LENGTHSELREF - PC3 - 7]](%rip), %rsi
  47 # CHECK-NEXT: [[#%x, PC4:]]
  48 # CHECK-SAME: jmpq    *0x[[#%x, GOTSTART - PC4 - 6]](%rip)
  49
  50 # CHECK-EMPTY:
  51
  52 .section  __TEXT,__objc_methname,cstring_literals
  53 lselref1:
  54   .asciz  "foo"
  55 lselref2:
  56   .asciz  "bar"
  57
  58 .section  __DATA,__objc_selrefs,literal_pointers,no_dead_strip
  59 .p2align  3
  60 .quad lselref1
  61 .quad lselref2
  62
  63 .text
  64 .globl _objc_msgSend
  65 _objc_msgSend:
  66   ret
  67
  68 .globl _main
  69 _main:
  70   callq  _objc_msgSend$length
  71   callq  _objc_msgSend$foo
  72   callq  _objc_msgSend$foo
  73   ret