Cscope is a developer'.s tool for browsing C programming code.
init version cscope-15.8a release, you can also find here:
http://cscope.sourceforge.net/
http://sourceforge.net/projects/cscope/files/
cscope commands:
add : Add a new database (Usage: add file|dir [pre-path] [flags])
find : Query for a pattern (Usage: find c|d|e|f|g|i|s|t name)
c: Find functions calling this function
d: Find functions called by this function
e: Find this egrep pattern
f: Find this file
g: Find this definition
i: Find files #including this file
s: Find this C symbol
t: Find assignments to
help : Show this message (Usage: help)
kill : Kill a connection (Usage: kill #)
reset: Reinit all connections (Usage: reset)
show : Show connections (Usage: show)