lld/test/MachO/dyld-stub-binder.s

   1 # REQUIRES: aarch64
   2 # RUN: rm -rf %t; split-file %s %t
   3 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %t/foo.s -o %t/foo.o
   4 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %t/bar.s -o %t/bar.o
   5 # RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %t/test.s -o %t/test.o
   6
   7 ## Dylibs that don't do lazy dynamic calls don't need dyld_stub_binder.
   8 # RUN: %no-lsystem-lld -arch arm64 -dylib %t/foo.o -o %t/libfoo.dylib
   9 # RUN: llvm-nm -m %t/libfoo.dylib | FileCheck --check-prefix=NOSTUB %s
  10
  11 ## Binaries that don't do lazy dynamic calls but are linked against
  12 ## libSystem.dylib get a reference to dyld_stub_binder even if it's
  13 ## not needed.
  14 # RUN: %lld -arch arm64 -lSystem -dylib %t/foo.o -o %t/libfoo.dylib
  15 # RUN: llvm-nm -m %t/libfoo.dylib | FileCheck --check-prefix=STUB %s
  16
  17
  18 ## Dylibs that do lazy dynamic calls do need dyld_stub_binder.
  19 # RUN: not %no-lsystem-lld -arch arm64 -dylib %t/bar.o %t/libfoo.dylib \
  20 # RUN:     -o %t/libbar.dylib 2>&1 | FileCheck --check-prefix=MISSINGSTUB %s
  21 # RUN: %lld -arch arm64 -lSystem -dylib %t/bar.o  %t/libfoo.dylib \
  22 # RUN:     -o %t/libbar.dylib
  23 # RUN: llvm-nm -m %t/libbar.dylib | FileCheck --check-prefix=STUB %s
  24
  25 ## As do executables.
  26 # RUN: not %no-lsystem-lld -arch arm64 %t/libfoo.dylib %t/libbar.dylib %t/test.o \
  27 # RUN:     -o %t/test 2>&1 | FileCheck --check-prefix=MISSINGSTUB %s
  28 # RUN: %lld -arch arm64 -lSystem %t/libfoo.dylib %t/libbar.dylib %t/test.o \
  29 # RUN:     -o %t/test
  30 # RUN: llvm-nm -m %t/test | FileCheck --check-prefix=STUB %s
  31
  32 ## Test dynamic lookup of dyld_stub_binder.
  33 # RUN: %no-lsystem-lld -arch arm64 %t/libfoo.dylib %t/libbar.dylib %t/test.o \
  34 # RUN:     -o %t/test -undefined dynamic_lookup
  35 # RUN: llvm-nm -m %t/test | FileCheck --check-prefix=DYNSTUB %s
  36 # RUN: %no-lsystem-lld -arch arm64 %t/libfoo.dylib %t/libbar.dylib %t/test.o \
  37 # RUN:     -o %t/test -U dyld_stub_binder
  38 # RUN: llvm-nm -m %t/test | FileCheck --check-prefix=DYNSTUB %s
  39
  40 # MISSINGSTUB:      error: undefined symbol: dyld_stub_binder
  41 # MISSINGSTUB-NEXT: >>> referenced by lazy binding (normally in libSystem.dylib)
  42
  43 # NOSTUB-NOT: dyld_stub_binder
  44 # STUB: (undefined) external dyld_stub_binder (from libSystem)
  45 # DYNSTUB: (undefined) external dyld_stub_binder (dynamically looked up)
  46
  47 #--- foo.s
  48 .globl _foo
  49 _foo:
  50
  51 #--- bar.s
  52 .text
  53 .globl _bar
  54 _bar:
  55   bl _foo
  56   ret
  57
  58 #--- test.s
  59 .text
  60 .globl _main
  61
  62 .p2align 2
  63 _main:
  64   bl _foo
  65   bl _bar
  66   ret