source code hierarchy diagram generator Graph doxygen documentation uml create Dependency Graphs for Header Files

 

--------Cscope   http://cscope.sourceforge.net/cscope_man_page.html   
screen-oriented tool that allows the user to browse through C source
is a developer's tool for browsing source code. It has an impeccable Unix pedigree, having been originally developed at Bell Labs back in the days of the PDP-11. Cscope was part of the official AT&T Unix distribution for many years, and has been used to manage projects involving 20 million lines of code!
In April, 2000, thanks to the Santa Cruz Operation, Inc. (SCO) (since merged with Caldera), the code for Cscope was open sourced under the BSD license.
--------gtags-cscope is an interactive, screen-oriented tool that allows the user to browse through source files


GNU global source-code tag system
Tama Communications Corporation; http://tamacom.com
 GNU Global source code tagging system https://www.tamacom.com/handbook.html
 GNU GLOBAL handbook https://www.tamacom.com/global.html
 
--------Vim is a highly configurable text editor built to make creating and changing any kind of text very efficient. It is included as "vi" with most UNIX systems and ...
--------Elvis Text Editor Elvis is an enhanced clone of the vi text editor,
--------GNU Emacs Emacs is the advanced, extensible, customizable, self-documenting editor. This manual describes how to edit with Emacs and some of the ways to customize it; ...
--------less less is a terminal pager program on Unix, Windows, and Unix-like systems used to view (but not change) the contents of a text file one screen
 
Doxygen http://www.stack.nl/~dimitri/doxygen/
http://www.doxygen.nl
Doxygen is the de facto standard tool for generating documentation from annotated C++ sources, but it also supports other popular programming languages such ...


Gprof performance analysis tools http://www.gnu.org/manual/gprof-2.9.1/gprof.html. Gprof is a performance analysis tool for Unix applications. It used a hybrid of instrumentation and sampling[1] and was created as an extended version of the older "prof" tool. Unlike prof, gprof is capable of limited call graph collecting and printing


GNU cflow analyzes a collection of C source files and prints a graph, charting control flow within the program.
GNU cflow Exuberant Ctags Ctags is a programming tool that generates an index (or tag) file



Graphviz http://www.graphviz.org/ https://en.wikipedia.org/wiki/Graphviz Graphviz (short for Graph Visualization Software)