lld/test/MachO/special-symbol-ld-hidden.s

   1 # REQUIRES: x86
   2
   3 # RUN: rm -rf %t; split-file --no-leading-lines %s %t
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/ref-all.s -o %t/ref-all.o
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/ref-reexported.s -o %t/ref-reexported.o
   6
   7 ## Check that the hidden symbols(foo11) can't be referenced from HideFoo.tbd when current version is 11.
   8 # RUN: not %lld -o /dev/null %t/libHideFoo.tbd %t/ref-all.o -dylib -platform_version macos 11.0.0 11.0.0 2>&1 | FileCheck %s --check-prefix=ERROR
   9
  10 ## Check that the hidden symbol(foo11) can be referenced when the current version is NOT 11.
  11 # RUN: %lld -o %t/ref-foo-12.dylib %t/libHideFoo.tbd %t/ref-all.o -dylib -platform_version macos 12.0.0 12.0.0
  12 # RUN: llvm-objdump --macho --bind %t/ref-foo-12.dylib | FileCheck %s --check-prefix=HAS-FOO
  13
  14 ## Check that when we link multiple tbd files, foo11 comes from the tbd where it is visible.
  15 # RUN: %lld -o %t/ref-all.dylib %t/libHideFoo.tbd %t/libHasFoo.tbd %t/ref-all.o -dylib -platform_version macos 11.0.0 11.0.0
  16 # RUN: llvm-objdump --macho --bind %t/ref-all.dylib | FileCheck %s --check-prefix=FOO
  17
  18 ## Check that '$hide$' has no effect on reexported symbols.
  19 # RUN: %lld -o %t/reexport.dylib %t/libReexportSystem2.tbd %t/ref-reexported.o -dylib -platform_version macos 11.0.0 11.0.0
  20 # RUN: llvm-objdump --macho --bind %t/reexport.dylib | FileCheck %s --check-prefix=REEXP
  21
  22 # ERROR:  error: undefined symbol: _OBJC_CLASS_$_foo11
  23
  24 # HAS-FOO: __DATA __data              {{.*}} pointer         0 /HideFoo         _OBJC_CLASS_$_foo11
  25
  26 # FOO:      segment  section            address    type       addend dylib            symbol
  27 # FOO-DAG: __DATA   __data               {{.*}} pointer         0 /HideFoo         _OBJC_CLASS_$_bar
  28 # FOO-DAG: __DATA   __data               {{.*}} pointer         0 /HideFoo         _OBJC_CLASS_$_foo10
  29 # FOO-DAG: __DATA   __data               {{.*}} pointer         0 /HasFoo          _OBJC_CLASS_$_foo11
  30 # FOO-DAG: __DATA   __data               {{.*}} pointer         0 /HideFoo         _xxx
  31
  32 # REEXP: __DATA   __data             {{.*}} pointer         0 libSystem        ___nan
  33
  34 #--- ref-all.s
  35 .data
  36 .quad   _xxx
  37 .quad _OBJC_CLASS_$_foo11
  38 .quad _OBJC_CLASS_$_foo10
  39 .quad _OBJC_CLASS_$_bar
  40
  41 #--- ref-reexported.s
  42 .data
  43 .quad   ___nan
  44
  45 #--- libHideFoo.tbd
  46 --- !tapi-tbd
  47 tbd-version: 4
  48 targets: [ x86_64-macos ]
  49 uuids:
  50   - target: x86_64-macos
  51     value:  2E994C7F-3F03-3A07-879C-55690D22BEDA
  52 install-name: '/HideFoo'
  53 current-version: 9
  54 compatibility-version: 4.5.6
  55 exports:
  56   - targets:         [ x86_64-macos ]
  57     symbols: [ '$ld$hide$os11.0$_OBJC_CLASS_$_foo11', '$ld$hide$os10.0$_OBJC_CLASS_$_foo10',  _xxx ]
  58     objc-classes: [foo10, foo11, bar]
  59 ...
  60
  61 #--- libHasFoo.tbd
  62 --- !tapi-tbd
  63 tbd-version: 4
  64 targets: [ x86_64-macos ]
  65 uuids:
  66   - target: x86_64-macos
  67     value:  2E994C7F-3F03-3A07-879C-55690D22BEDB
  68 install-name: '/HasFoo'
  69 current-version: 9
  70 compatibility-version: 4.5.6
  71 exports:
  72   - targets: [ x86_64-macos ]
  73     symbols: [  _xxx ]
  74     objc-classes: [foo10, foo11, bar]
  75 ...
  76
  77 #--- libReexportSystem2.tbd
  78 --- !tapi-tbd
  79 tbd-version:     4
  80 targets: [ x86_64-macos ]
  81 uuids:
  82   - target:  x86_64-macos
  83     value:   00000000-0000-0000-0000-000000000002
  84 install-name:    '/libReexportSystem2'
  85 current-version: 9
  86 exports:
  87   - targets: [ x86_64-macos ]
  88     symbols: [  '$ld$hide$___nan' ]
  89 reexported-libraries:
  90   - targets:   [ x86_64-macos ]
  91     libraries: [ '/usr/lib/libSystem.dylib' ]
  92 ...
  93