lld/test/MachO/arm64-objc-stubs.s

   1 # REQUIRES: aarch64
   2
   3 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %s -o %t.o
   4 # RUN: %lld -arch arm64 -lSystem -o %t.out %t.o
   5 # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
   6 # RUN: %lld -arch arm64 -lSystem -o %t.out %t.o -dead_strip
   7 # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
   8 # RUN: %lld -arch arm64 -lSystem -o %t.out %t.o -objc_stubs_fast
   9 # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
  10 # RUN: %no-fatal-warnings-lld -arch arm64 -lSystem -o %t.out %t.o -objc_stubs_small 2>&1 | FileCheck %s --check-prefix=WARNING
  11 # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
  12
  13 # WARNING: warning: -objc_stubs_small is not yet implemented, defaulting to -objc_stubs_fast
  14
  15 # CHECK: Contents of (__TEXT,__objc_stubs) section
  16
  17 # CHECK-NEXT: _objc_msgSend$foo:
  18 # CHECK-NEXT: adrp    x1, 8 ; 0x100008000
  19 # CHECK-NEXT: ldr     x1, [x1, #0x10]
  20 # CHECK-NEXT: adrp    x16, 4 ; 0x100004000
  21 # CHECK-NEXT: ldr     x16, [x16]
  22 # CHECK-NEXT: br      x16
  23 # CHECK-NEXT: brk     #0x1
  24 # CHECK-NEXT: brk     #0x1
  25 # CHECK-NEXT: brk     #0x1
  26
  27 # CHECK-NEXT: _objc_msgSend$length:
  28 # CHECK-NEXT: adrp    x1, 8 ; 0x100008000
  29 # CHECK-NEXT: ldr     x1, [x1, #0x18]
  30 # CHECK-NEXT: adrp    x16, 4 ; 0x100004000
  31 # CHECK-NEXT: ldr     x16, [x16]
  32 # CHECK-NEXT: br      x16
  33 # CHECK-NEXT: brk     #0x1
  34 # CHECK-NEXT: brk     #0x1
  35 # CHECK-NEXT: brk     #0x1
  36
  37 # CHECK-EMPTY:
  38
  39 .section  __TEXT,__objc_methname,cstring_literals
  40 lselref1:
  41   .asciz  "foo"
  42 lselref2:
  43   .asciz  "bar"
  44
  45 .section  __DATA,__objc_selrefs,literal_pointers,no_dead_strip
  46 .p2align  3
  47 .quad lselref1
  48 .quad lselref2
  49
  50 .text
  51 .globl _objc_msgSend
  52 _objc_msgSend:
  53   ret
  54
  55 .globl _main
  56 _main:
  57   bl  _objc_msgSend$length
  58   bl  _objc_msgSend$foo
  59   bl  _objc_msgSend$foo
  60   ret