Common symbols are represented by undefined (N_UNDF) external (N_EXT) types
who's values (n_value) are non-zero. In which case the value of the n_value
field is the size (in bytes) of the common symbol. The n_sect field is set
to NO_SECT. The alignment of a common symbol may be set as a power of 2
between 2^1 and 2^15 as part of the n_desc field using the macros below. If
the alignment is not set (a value of zero) then natural alignment based on
the size is used.
Common symbols are represented by undefined (N_UNDF) external (N_EXT) types who's values (n_value) are non-zero. In which case the value of the n_value field is the size (in bytes) of the common symbol. The n_sect field is set to NO_SECT. The alignment of a common symbol may be set as a power of 2 between 2^1 and 2^15 as part of the n_desc field using the macros below. If the alignment is not set (a value of zero) then natural alignment based on the size is used.