remove-lc-index-update.test 9.41 KB
## Check that removing load commands updates the indexes of special LCs:

# RUN: yaml2obj %s -o %t
# RUN: llvm-install-name-tool -delete_rpath @executable_a/. %t
# RUN: llvm-objdump -p %t | FileCheck %s --check-prefix=INDEX

# INDEX:      Load command 3
# INDEX-NEXT: cmd LC_DYLD_INFO_ONLY
# INDEX:      Load command 5
# INDEX-NEXT: cmd LC_DATA_IN_CODE
# INDEX:      Load command 8
# INDEX-NEXT: cmd LC_FUNCTION_STARTS
# INDEX:      Load command 13
# INDEX-NEXT: cmd LC_DYSYMTAB
# INDEX:      Load command 14
# INDEX-NEXT: cmd LC_SYMTAB

--- !mach-o
FileHeader:
  magic:           0xFEEDFACF
  cputype:         0x01000007
  cpusubtype:      0x80000003
  filetype:        0x00000002
  ncmds:           16
  sizeofcmds:      1008
  flags:           0x00200085
  reserved:        0x00000000
LoadCommands:
  - cmd:             LC_SEGMENT_64
    cmdsize:         72
    segname:         __PAGEZERO
    vmaddr:          0
    vmsize:          4294967296
    fileoff:         0
    filesize:        0
    maxprot:         0
    initprot:        0
    nsects:          0
    flags:           0
  - cmd:             LC_SEGMENT_64
    cmdsize:         232
    segname:         __TEXT
    vmaddr:          4294967296
    vmsize:          4096
    fileoff:         0
    filesize:        4096
    maxprot:         7
    initprot:        5
    nsects:          2
    flags:           0
    Sections:
      - sectname:        __text
        segname:         __TEXT
        addr:            0x0000000100000F90
        size:            36
        offset:          0x00000F90
        align:           4
        reloff:          0x00000000
        nreloc:          0
        flags:           0x80000400
        reserved1:       0x00000000
        reserved2:       0x00000000
        reserved3:       0x00000000
      - sectname:        __unwind_info
        segname:         __TEXT
        addr:            0x0000000100000FB4
        size:            72
        offset:          0x00000FB4
        align:           2
        reloff:          0x00000000
        nreloc:          0
        flags:           0x00000000
        reserved1:       0x00000000
        reserved2:       0x00000000
        reserved3:       0x00000000
  - cmd:             LC_SEGMENT_64
    cmdsize:         232
    segname:         __DATA
    vmaddr:          4294971392
    vmsize:          4096
    fileoff:         4096
    filesize:        4096
    maxprot:         7
    initprot:        3
    nsects:          2
    flags:           0
    Sections:
      - sectname:        __data
        segname:         __DATA
        addr:            0x0000000100001000
        size:            4
        offset:          0x00001000
        align:           2
        reloff:          0x00000000
        nreloc:          0
        flags:           0x00000000
        reserved1:       0x00000000
        reserved2:       0x00000000
        reserved3:       0x00000000
      - sectname:        __common
        segname:         __DATA
        addr:            0x0000000100001004
        size:            4
        offset:          0x00000000
        align:           2
        reloff:          0x00000000
        nreloc:          0
        flags:           0x00000001
        reserved1:       0x00000000
        reserved2:       0x00000000
        reserved3:       0x00000000
  - cmd:             LC_RPATH
    cmdsize:         32
    path:            12
    PayloadString:   '@executable_a/.'
  - cmd:             LC_DYLD_INFO_ONLY
    cmdsize:         48
    rebase_off:      0
    rebase_size:     0
    bind_off:        0
    bind_size:       0
    weak_bind_off:   0
    weak_bind_size:  0
    lazy_bind_off:   0
    lazy_bind_size:  0
    export_off:      8192
    export_size:     56
  - cmd:             LC_SEGMENT_64
    cmdsize:         72
    segname:         __LINKEDIT
    vmaddr:          4294975488
    vmsize:          4096
    fileoff:         8192
    filesize:        496
    maxprot:         7
    initprot:        1
    nsects:          0
    flags:           0
  - cmd:             LC_DATA_IN_CODE
    cmdsize:         16
    dataoff:         8256
    datasize:        8
  - cmd:             LC_LOAD_DYLINKER
    cmdsize:         32
    name:            12
    PayloadString:   '/usr/lib/dyld'
    ZeroPadBytes:    7
  - cmd:             LC_UUID
    cmdsize:         24
    uuid:            56D84164-1DA8-393B-8589-BC4C6B56168E
  - cmd:             LC_FUNCTION_STARTS
    cmdsize:         16
    dataoff:         8248
    datasize:        8
  - cmd:             LC_BUILD_VERSION
    cmdsize:         32
    platform:        1
    minos:           658944
    sdk:             658944
    ntools:          1
    Tools:
      - tool:            3
        version:         29491968
  - cmd:             LC_SOURCE_VERSION
    cmdsize:         16
    version:         0
  - cmd:             LC_MAIN
    cmdsize:         24
    entryoff:        3984
    stacksize:       0
  - cmd:             LC_LOAD_DYLIB
    cmdsize:         56
    dylib:
      name:            24
      timestamp:       2
      current_version: 82115073
      compatibility_version: 65536
    PayloadString:   '/usr/lib/libSystem.B.dylib'
    ZeroPadBytes:    6
  - cmd:             LC_DYSYMTAB
    cmdsize:         80
    ilocalsym:       0
    nlocalsym:       11
    iextdefsym:      11
    nextdefsym:      3
    iundefsym:       14
    nundefsym:       1
    tocoff:          0
    ntoc:            0
    modtaboff:       0
    nmodtab:         0
    extrefsymoff:    0
    nextrefsyms:     0
    indirectsymoff:  8264
    nindirectsyms:   0
    extreloff:       0
    nextrel:         0
    locreloff:       0
    nlocrel:         0
  - cmd:             LC_SYMTAB
    cmdsize:         24
    symoff:          8264
    nsyms:           15
    stroff:          8504
    strsize:         192
LinkEditData:
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    Other:           0x0000000000000000
    ImportName:      ''
    Children:
      - TerminalSize:    0
        NodeOffset:      5
        Name:            _
        Flags:           0x0000000000000000
        Address:         0x0000000000000000
        Other:           0x0000000000000000
        ImportName:      ''
        Children:
          - TerminalSize:    2
            NodeOffset:      38
            Name:            _mh_execute_header
            Flags:           0x0000000000000000
            Address:         0x0000000000000000
            Other:           0x0000000000000000
            ImportName:      ''
          - TerminalSize:    3
            NodeOffset:      42
            Name:            main
            Flags:           0x0000000000000000
            Address:         0x0000000000000F90
            Other:           0x0000000000000000
            ImportName:      ''
          - TerminalSize:    3
            NodeOffset:      47
            Name:            foo
            Flags:           0x0000000000000000
            Address:         0x0000000000001004
            Other:           0x0000000000000000
            ImportName:      ''
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      n_type:          0x64
      n_sect:          0
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    ## A local undefined SymDebugTable entry followed by
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    ## a defined SymDebugTable entry.
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  StringTable:
    - ' '
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    - _foo
    - _main
    - dyld_stub_binder
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    - strip.c
    - '/var/folders/g7/l0p5czpd2jz6w0gswg6cwgjc0000gn/T/strip-95c4bf.o'
    - _main
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    - _foo
    - _bar
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    - ''
    - ''
    - ''
    - ''
    - ''
...