Fix a seg-fault parsing corrupt DWARF information.  (#1573360)
    Fix another seg-fault parsing corrupt DWARF information.  (#1573367)
    Fix a seg-fault copying a corrupt ELF file.  (#1551788)
    Fix a seg-fault parsing a large ELF files on a 32-bit host.  (#1539891)
    Fix a seg-fault running nm on a corrupt ELF file.  (#15343247)
    Fix a seg-fault running nm on a file containing corrupt DWARF information.  (#1551781)
    Fix another seg-fault running nm on a file containing corrupt DWARF information.  (#1551763)