# RUN: yaml2obj %s -o %t
# RUN: not llvm-jitlink -noexec -entry _anchor %t 2>&1 | FileCheck %s

# Test that we generate an error (rather than crashing) if we encounter a
# symbol with a string index of zero (no name) with the N_EXT bit set.

# CHECK: Symbol at index 1 has no name (string table index 0), but N_EXT bit

--- !mach-o
FileHeader:
  magic:           0xFEEDFACF
  cputype:         0x1000007
  cpusubtype:      0x3
  filetype:        0x1
  ncmds:           4
  sizeofcmds:      360
  flags:           0x2000
  reserved:        0x0
LoadCommands:
  - cmd:             LC_SEGMENT_64
    cmdsize:         232
    segname:         ''
    vmaddr:          0
    vmsize:          8
    fileoff:         392
    filesize:        0
    maxprot:         7
    initprot:        7
    nsects:          2
    flags:           0
    Sections:
      - sectname:        __text
        segname:         __TEXT
        addr:            0x0
        size:            0
        offset:          0x188
        align:           0
        reloff:          0x0
        nreloc:          0
        flags:           0x80000000
        reserved1:       0x0
        reserved2:       0x0
        reserved3:       0x0
        content:         ''
      - sectname:        __common
        segname:         __DATA
        addr:            0x0
        size:            8
        offset:          0x0
        align:           2
        reloff:          0x0
        nreloc:          0
        flags:           0x1
        reserved1:       0x0
        reserved2:       0x0
        reserved3:       0x0
  - cmd:             LC_BUILD_VERSION
    cmdsize:         24
    platform:        1
    minos:           851968
    sdk:             0
    ntools:          0
  - cmd:             LC_SYMTAB
    cmdsize:         24
    symoff:          392
    nsyms:           2
    stroff:          424
    strsize:         16
  - cmd:             LC_DYSYMTAB
    cmdsize:         80
    ilocalsym:       0
    nlocalsym:       0
    iextdefsym:      0
    nextdefsym:      2
    iundefsym:       2
    nundefsym:       0
    tocoff:          0
    ntoc:            0
    modtaboff:       0
    nmodtab:         0
    extrefsymoff:    0
    nextrefsyms:     0
    indirectsymoff:  0
    nindirectsyms:   0
    extreloff:       0
    nextrel:         0
    locreloff:       0
    nlocrel:         0
LinkEditData:
  NameList:
    - n_strx:          1
      n_type:          0xF
      n_sect:          2
      n_desc:          0
      n_value:         0
    - n_strx:          0
      n_type:          0xF
      n_sect:          2
      n_desc:          0
      n_value:         4
  StringTable:
    - ''
    - _anchor
    - _b
    - ''
    - ''
    - ''
    - ''
...