lld/test/MachO/load-hidden.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t; split-file %s %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/archive-foo.s -o %t/archive-foo.o
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/archive-baz.s -o %t/archive-baz.o
   5 # RUN: llvm-ar rcs %t/libfoo.a %t/archive-foo.o
   6 # RUN: llvm-ar rcs %t/libbaz.a %t/archive-baz.o
   7 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/obj.s -o %t/obj.o
   8 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/obj-bar.s -o %t/obj-bar.o
   9
  10 # RUN: %lld -dylib -lSystem %t/obj.o -load_hidden %t/libfoo.a -o %t/test.dylib
  11 # RUN: llvm-nm %t/test.dylib | FileCheck %s
  12 # RUN: %lld -dylib -lSystem -L%t %t/obj.o -hidden-lfoo -o %t/test2.dylib
  13 # RUN: llvm-nm %t/test2.dylib | FileCheck %s
  14 # CHECK-DAG: t _foo
  15 # CHECK-DAG: d _bar
  16
  17 ## If an archive has already been loaded without -load_hidden earlier in the command line,
  18 ## -load_hidden does not have an effect.
  19 # RUN: %lld -dylib -lSystem %t/obj.o %t/libfoo.a -load_hidden %t/libfoo.a -o %t/test-regular-then-hidden.dylib
  20 # RUN: llvm-nm %t/test-regular-then-hidden.dylib | FileCheck %s --check-prefix=REGULAR-THEN-HIDDEN
  21 # REGULAR-THEN-HIDDEN-DAG: T _foo
  22 # REGULAR-THEN-HIDDEN-DAG: D _bar
  23
  24 ## If -load_hidden comes first, the symbols will have hidden visibility.
  25 # RUN: %lld -dylib -lSystem %t/obj.o -load_hidden %t/libfoo.a %t/libfoo.a -o %t/test-hidden-then-regular.dylib
  26 # RUN: llvm-nm %t/test-hidden-then-regular.dylib | FileCheck %s --check-prefix=HIDDEN-THEN-REGULAR
  27 # HIDDEN-THEN-REGULAR-DAG: t _foo
  28 # HIDDEN-THEN-REGULAR-DAG: d _bar
  29
  30 ## If both -load_hidden and -force_load are specified, the earlier one will have an effect.
  31 # RUN: %lld -dylib -lSystem %t/obj.o %t/libfoo.a -force_load %t/libbaz.a -load_hidden %t/libbaz.a -o %t/test-force-then-hidden.dylib
  32 # RUN: llvm-nm %t/test-force-then-hidden.dylib | FileCheck %s --check-prefix=FORCE-THEN-HIDDEN
  33 # FORCE-THEN-HIDDEN: T _baz
  34 # RUN: %lld -dylib -lSystem %t/obj.o %t/libfoo.a -load_hidden %t/libbaz.a -force_load %t/libbaz.a -o %t/test-hidden-then-force.dylib
  35 # RUN: llvm-nm %t/test-hidden-then-force.dylib | FileCheck %s --check-prefix=HIDDEN-THEN-FORCE
  36 # HIDDEN-THEN-FORCE-NOT: _baz
  37
  38 ## -load_hidden does not cause the library to be loaded eagerly.
  39 # RUN: %lld -dylib -lSystem %t/obj.o -load_hidden %t/libfoo.a -load_hidden %t/libbaz.a -o %t/test-lazy.dylib
  40 # RUN: llvm-nm %t/test-lazy.dylib | FileCheck %s --check-prefix=LAZY
  41 # LAZY-NOT: _baz
  42
  43 ## Specifying the same library twice is fine.
  44 # RUN: %lld -dylib -lSystem %t/obj.o -load_hidden %t/libfoo.a -load_hidden %t/libfoo.a -o %t/test-twice.dylib
  45 # RUN: llvm-nm %t/test-twice.dylib | FileCheck %s --check-prefix=TWICE
  46 # TWICE-DAG: t _foo
  47 # TWICE-DAG: d _bar
  48
  49 ## -load_hidden causes the symbols to have "private external" visibility, so duplicate definitions
  50 ## are not allowed.
  51 # RUN: not %lld -dylib -lSystem %t/obj.o %t/obj-bar.o -load_hidden %t/libfoo.a 2>&1 | FileCheck %s --check-prefix=DUP
  52 # DUP: error: duplicate symbol: _bar
  53
  54 #--- archive-foo.s
  55 .globl _foo
  56 _foo:
  57
  58 .data
  59 .globl _bar
  60 _bar:
  61
  62 #--- archive-baz.s
  63 .globl _baz
  64 _baz:
  65
  66 #--- obj-bar.s
  67 .data
  68 .globl _bar
  69 _bar:
  70
  71 #--- obj.s
  72 .globl _test
  73 _test:
  74     call _foo