test/mach-o/upward-dylib-load-command.yaml

   1 # RUN: ld64.lld -arch x86_64 -dylib %p/Inputs/bar.yaml \
   2 # RUN:     -install_name /usr/lib/libbar.dylib %p/Inputs/x86_64/libSystem.yaml -o %t1.dylib
   3 # RUN: ld64.lld -arch x86_64 -dylib %s -upward_library  %t1.dylib \
   4 # RUN:      -install_name /usr/lib/libfoo.dylib %p/Inputs/x86_64/libSystem.yaml -o %t
   5 # RUN: llvm-objdump -private-headers %t | FileCheck %s
   6 #
   7 #
   8 # Test upward linking: 1) build libbar.dylib, 2) build libfoo.dylib and upward
   9 # like with libbar.dylib, 3) dump load commands of libfoo and verify upward link.
  10 #
  11
  12 --- !mach-o
  13 arch:            x86_64
  14 file-type:       MH_OBJECT
  15 flags:           [ MH_SUBSECTIONS_VIA_SYMBOLS ]
  16 sections:
  17   - segment:         __TEXT
  18     section:         __text
  19     type:            S_REGULAR
  20     attributes:      [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
  21     address:         0x0000000000000000
  22     content:         [ 0x55, 0x48, 0x89, 0xE5, 0x31, 0xC0, 0x5D, 0xE9,
  23                        0x00, 0x00, 0x00, 0x00 ]
  24     relocations:
  25       - offset:          0x00000008
  26         type:            X86_64_RELOC_BRANCH
  27         length:          2
  28         pc-rel:          true
  29         extern:          true
  30         symbol:          1
  31 global-symbols:
  32   - name:            _foo
  33     type:            N_SECT
  34     scope:           [ N_EXT ]
  35     sect:            1
  36     value:           0x0000000000000000
  37 undefined-symbols:
  38   - name:            _bar
  39     type:            N_UNDF
  40     scope:           [ N_EXT ]
  41     value:           0x0000000000000000
  42
  43 ...
  44
  45
  46 # CHECK:                      cmd LC_LOAD_UPWARD_DYLIB
  47 # CHECK-NEXT:         cmdsize 48
  48 # CHECK-NEXT:            name /usr/lib/libbar.dylib (offset 24)