lld/test/MachO/weak-header-flags.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t; split-file %s %t
   3
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/libweak-defines.s -o %t/libweak-defines.o
   5 # RUN: %lld -dylib %t/libweak-defines.o -o %t/libweak-defines.dylib
   6 # RUN: llvm-readobj --file-headers %t/libweak-defines.dylib | FileCheck %s --check-prefix=WEAK-DEFINES-AND-BINDS
   7
   8 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/binds-to-weak.s -o %t/binds-to-weak.o
   9 # RUN: %lld -lSystem -L%t -lweak-defines -o %t/binds-to-weak %t/binds-to-weak.o
  10 # RUN: llvm-readobj --file-headers %t/binds-to-weak | FileCheck %s --check-prefix=WEAK-BINDS-ONLY
  11
  12 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/overrides-weak.s -o %t/overrides-weak.o
  13 # RUN: %lld -lSystem -L%t -lweak-defines -o %t/overrides-weak %t/overrides-weak.o
  14 # RUN: llvm-readobj --file-headers %t/overrides-weak | FileCheck %s --check-prefix=WEAK-DEFINES-ONLY
  15
  16 # WEAK-DEFINES-AND-BINDS: MH_BINDS_TO_WEAK
  17 # WEAK-DEFINES-AND-BINDS: MH_WEAK_DEFINES
  18
  19 # WEAK-BINDS-ONLY-NOT:    MH_WEAK_DEFINES
  20 # WEAK-BINDS-ONLY:        MH_BINDS_TO_WEAK
  21 # WEAK-BINDS-ONLY-NOT:    MH_WEAK_DEFINES
  22
  23 # WEAK-DEFINES-ONLY-NOT:  MH_BINDS_TO_WEAK
  24 # WEAK-DEFINES-ONLY:      MH_WEAK_DEFINES
  25 # WEAK-DEFINES-ONLY-NOT:  MH_BINDS_TO_WEAK
  26
  27 #--- libweak-defines.s
  28
  29 .globl _foo
  30 .weak_definition _foo
  31 _foo:
  32   ret
  33
  34 #--- binds-to-weak.s
  35
  36 .globl _main
  37 _main:
  38   callq _foo
  39   ret
  40
  41 ## Don't generate MH_WEAK_DEFINES for weak locals
  42 .weak_definition _weak_local
  43 _weak_local:
  44
  45 #--- overrides-weak.s
  46
  47 .globl _main, _foo
  48 _foo:
  49
  50 _main:
  51   ret