lld/test/MachO/arm64-objc-stubs-fix.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  -fixup_chains -o %t.out %t.o
   5 # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s --check-prefix=CHECK --check-prefix=FIRST
   6
   7 # Prepend a dummy entry to check if the address for _objc_msgSend is valid.
   8 # RUN: %lld -arch arm64 -lSystem  -fixup_chains -e _dummy -U _dummy -o %t.out %t.o
   9 # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s --check-prefix=CHECK --check-prefix=SECOND
  10
  11 # CHECK: Contents of (__TEXT,__objc_stubs) section
  12
  13 # CHECK-NEXT: _objc_msgSend$foo:
  14 # CHECK-NEXT: adrp    x1, 8 ; 0x100008000
  15 # CHECK-NEXT: ldr     x1, [x1]
  16 # CHECK-NEXT: adrp    x16, 4 ; 0x100004000
  17 # FIRST-NEXT: ldr     x16, [x16]
  18 # SECOND-NEXT:ldr     x16, [x16, #0x8]
  19 # CHECK-NEXT: br      x16
  20 # CHECK-NEXT: brk     #0x1
  21 # CHECK-NEXT: brk     #0x1
  22 # CHECK-NEXT: brk     #0x1
  23
  24 # CHECK-EMPTY:
  25
  26 .text
  27 .globl _objc_msgSend
  28 _objc_msgSend:
  29   ret
  30
  31 .globl _main
  32 _main:
  33   bl  _objc_msgSend$foo
  34   ret