# RUN: lld -flavor darwin -arch x86_64  %s -dylib -o %t %p/Inputs/libSystem.yaml
# RUN: llvm-objdump -private-headers %t | FileCheck %s
#
# RUN: lld -flavor darwin -arch x86_64  %s -r -o %t1
# RUN: llvm-objdump -private-headers %t1 | FileCheck %s
#
# Test that interposing section is preserved by linker.
#

--- !mach-o
arch:            x86_64
file-type:       MH_OBJECT
flags:           [ MH_SUBSECTIONS_VIA_SYMBOLS ]
sections:        
  - segment:         __TEXT
    section:         __text
    type:            S_REGULAR
    attributes:      [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
    address:         0x0000000000000000
    content:         [ 0x55, 0x48, 0x89, 0xE5, 0x31, 0xC0, 0x5D, 0xE9, 
                       0x00, 0x00, 0x00, 0x00 ]
    relocations:     
      - offset:          0x00000008
        type:            X86_64_RELOC_BRANCH
        length:          2
        pc-rel:          true
        extern:          true
        symbol:          2
  - segment:         __DATA
    section:         __interpose
    type:            S_INTERPOSING
    attributes:      [  ]
    alignment:       3
    address:         0x0000000000000010
    content:         [ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
                       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ]
    relocations:     
      - offset:          0x00000008
        type:            X86_64_RELOC_UNSIGNED
        length:          3
        pc-rel:          false
        extern:          true
        symbol:          2
      - offset:          0x00000000
        type:            X86_64_RELOC_UNSIGNED
        length:          3
        pc-rel:          false
        extern:          true
        symbol:          0
local-symbols:   
  - name:            _my_open
    type:            N_SECT
    sect:            1
    value:           0x0000000000000000
  - name:            __interpose_open
    type:            N_SECT
    sect:            2
    desc:            [ N_NO_DEAD_STRIP ]
    value:           0x0000000000000010
undefined-symbols: 
  - name:            _open
    type:            N_UNDF
    scope:           [ N_EXT ]
    value:           0x0000000000000000
    
--- !mach-o
arch:            x86_64
file-type:       MH_DYLIB
install-name:    /usr/lib/libSystem.B.dylib
exports:
  - name:            _open

...


# CHECK:	  sectname __interposing
# CHECK:	   segname __DATA
# CHECK:	      type S_INTERPOSING