Package cflow

Analyzes C files charting control flow within the program

http://www.gnu.org/software/cflow/

GNU cflow analyzes a collection of C source files and prints a graph,
charting control flow within the program.

GNU cflow is able to produce both direct and inverted flowgraphs for C
sources. Optionally a cross-reference listing can be generated. Two
output formats are implemented: POSIX and GNU (extended).

General Commands (Section 1)
cflow
Cflow analyzes a collection of input files written in C programming language and writes to standard output a graph charting dependencies between various...