From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: code coverage tool
Date:	Wed, 10 Dec 1997 20:33:46 +0000
Organization:	Two pounds of chaos and a pinch of salt
Lines:	31
Message-ID:	<348EFCAA.2281@cs.com>
References:	<66n156$g0b AT news DOT microsoft DOT com>
Reply-To:	fighteer AT cs DOT com
NNTP-Posting-Host:	ppp225.cs.com
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

john bartkiw wrote:
> 
>     Anyone know of a tool with DKGPP which will give me code coverage
> information about a program.  IE which functions get called how many times
> for how much proccessor time.
> 
>     I basically want to optimize my code and want to see where I'm using my
> clock cycles.

The tool you are looking for is called a profiler, and DJGPP (note
correct spelling) does indeed come with one.  It's called "gprof" (for
GNU Profiler), and comes with the GNU Binutils, which are part of a
standard DJGPP installation.  Basic usage of gprof:

 - Compile _and_ link your program using the "-pg" option.
 - Run your program for long enough to generate a sample.
 - Run "gprof" on your program and capture the output.

The DJGPP FAQ (v2/faq210b.zip from SimTel or online at
http://www.delorie.com/djgpp/v2faq/) has a complete chapter devoted to
profiling.  I suggest you read it.

hth

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