From: Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: preprpcessor for overiding gcc optimation switch
Organization: Pin Eight Software  http://pineight.8m.com/
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NNTP-Posting-Date: Tue, 20 Jun 2000 08:34:13 GMT
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Date: Tue, 20 Jun 2000 08:34:13 GMT
To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

On Sun, 18 Jun 2000 13:09:49 -0700, batchex
<thedark1NOthSPAM AT phreaker DOT net DOT invalid> wrote:

>in one of my project, one (only one) of the source file, when
>compiled with optimation, then try to debug a function contained
>in that file in gdb, it will give errorneous results.

There is generally one main reason to turn off optimization in GCC:
when debugging your executable in GDB.  Optimization rearranges
instructions to better fit in a Pentium's pipeline; this throws GDB
off balance.

>It is solved if that particular source file is compiled without
>optimation.

Which is standard practice when using source debuggers such as GDB.
Eli could probably point you to a FAQ list entry with more info.

-- 
Damian Yerrick
"I refuse to listen to those who refuse to listen to reason."
See the whole sig: http://www.rose-hulman.edu/~yerricde/sig.html

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