NM(1)
NAME
nm − print name list
USAGE
nm [ −gnopru ] [ file ... ]
DESCRIPTION
Nm prints the name list (symbol table) of each object file in the argument list. If you fail to supply the name of a file, nm lists the symbols in the file a.out in the current directory.
Each symbol name is preceded by its value (blanks if undefined) and one of the following letters: U (undefined), A (absolute), T (text segment symbol), D (data segment symbol), B (bss segment symbol), C (common symbol), f (file name), or G (global). If the symbol is local (non-external), the letter is in lower case. Nm sorts the output alphabetically.
OPTIONS
−g Print only global (external) symbols.
−n Sort numerically rather than alphabetically.
−o Prepend filename to each output line.
−p Don’t sort; print in symbol-table order.
−r Sort in reverse order.
−u Print only undefined symbols.