lld/test/MachO/alias-option.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t; split-file %s %t
   3
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos -o %t/foo.o %t/foo.s
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos -o %t/main.o %t/main.s
   6
   7 # RUN: %lld -alias _foo _bar -u _bar -exported_symbol _bar %t/main.o %t/foo.o -o %t/bar.o
   8 # RUN: llvm-nm %t/bar.o | FileCheck %s --check-prefix=BAR
   9
  10 # BAR: [[#%x,FOO_ADDR:]] T _bar
  11 # BAR: [[#FOO_ADDR]]     t _foo
  12
  13 # RUN: not %lld -alias _missing _bar -alias _missing2 _baz %t/main.o -o %t/missing.o %s 2>&1 | FileCheck %s --check-prefix=MISSING
  14
  15 # MISSING-DAG: undefined base symbol '_missing' for alias '_bar'
  16 # MISSING-DAG: undefined base symbol '_missing2' for alias '_baz'
  17
  18 # RUN: %lld -alias _foo _main %t/foo.o -o %t/main_rename.o
  19 # RUN: llvm-nm %t/main_rename.o | FileCheck %s --check-prefix=MAIN
  20
  21 # MAIN: [[#%x,FOO_ADDR:]] T _foo
  22 # MAIN: [[#FOO_ADDR]]     T _main
  23
  24 ## Verify dead stripping doesn't remove the aliased symbol. This behavior differs
  25 ## from ld64 where it actually does dead strip only the alias, not the original symbol.
  26 # RUN: %lld -dead_strip -alias _foo _bar -alias _main _fake_main %t/main.o %t/foo.o -o %t/multiple.o
  27 # RUN: llvm-nm %t/multiple.o | FileCheck %s --check-prefix=MULTIPLE
  28
  29 # MULTIPLE: [[#%x,FOO_ADDR:]]  T _bar
  30 # MULTIPLE: [[#%x,MAIN_ADDR:]] T _fake_main
  31 # MULTIPLE: [[#FOO_ADDR]]      T _foo
  32 # MULTIPLE: [[#MAIN_ADDR]]     T _main
  33
  34 #--- foo.s
  35 .subsections_via_symbols
  36 .globl _foo
  37 _foo:
  38   ret
  39
  40 #--- main.s
  41 .subsections_via_symbols
  42 .globl _main
  43 _main:
  44   ret