Well, you can recompile the code with the profile flag (-pg). Then run the program. It will create a file in the current directory called gmon.out.
Then, run "gprof progra," (whatever program executable you called in the first step). Uncalled subroutines and functions will not appear in the call list at the top.
Finding dead code INSIDE subroutines and functions is a bit harder.
-Jack
----------------------------------------------------------------------
Message: 1
Date: Mon, 29 Jul 2013 10:12:04 -0700 (PDT)
From: Carl Slater <
ce.slater@xxxxxxxxx>
To: "
photran@xxxxxxxxxxx" <
photran@xxxxxxxxxxx>
Subject: [photran] How difficult is it to find dead code
Message-ID:
<137511792
4.87392.YahooMailNeo@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"
Hmmm I was thinking ... I know dangerous.
You have a database of function definitions and function usages .... how hard is it to identify routines that are never used?
When you inherit a code worked on by multiple authors it is easy to have "dead code" that gets updated but never used.
Regards
Carl
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