HelloWorld.o:
Mach header
      magic cputype cpusubtype  caps    filetype ncmds sizeofcmds      flags
 0xfeedfacf 16777223          3  0x00           1     2        256 0x00000000
Load command 0
      cmd LC_SEGMENT_64
  cmdsize 232
  segname
   vmaddr 0x0000000000000000
   vmsize 0x0000000000000031
  fileoff 288
 filesize 49
  maxprot 0x00000007
 initprot 0x00000007
   nsects 2
    flags 0x0
Section
  sectname __text
   segname __TEXT
      addr 0x0000000000000000
      size 0x0000000000000022
    offset 288
     align 2^0 (1)
    reloff 344
    nreloc 1
     flags 0x80000700
 reserved1 0
 reserved2 0
Section
  sectname __data
   segname __DATA
      addr 0x0000000000000022
      size 0x000000000000000d
    offset 324
     align 2^0 (1)
    reloff 0
    nreloc 0
     flags 0x00000000
 reserved1 0
 reserved2 0
Load command 1
     cmd LC_SYMTAB
 cmdsize 24
  symoff 352
   nsyms 3
  stroff 400
 strsize 19