cflow

cflow [options] files

Produce an outline (or flowchart) of external function calls for the C, lex, yacc, assembler, or object files. cflow also accepts the cc options -D, -I, and -U.

Options

-dn

Stop outlining when nesting level n is reached.

-i_

Include functions whose names begin with _.

-ix

Include external and static data symbols.

-r

Invert the listing; show the callers of each function and sort in lexicographical order by callee.