gcc binary comparison help

Caleb Cittadino caleb.cittadino@gmail.com
Wed Dec 6 23:32:00 GMT 2006


No I'm actually comparing library files.  Someone had mentioned I
should be comparing .o files first, which I did, but they remain the
same each time.  It's only the build contents I listed and the binary
that change.

~Caleb

On 06 Dec 2006 15:07:18 -0800, Ian Lance Taylor <iant@google.com> wrote:
> "Caleb Cittadino" <caleb.cittadino@gmail.com> writes:
>
> > Strangely, when I use -frandom-seed I get a bigger set of differing
> > data between the resulting library files.  I checked the documentation
> > for gcc and it states this options is used to "produce reproducibly
> > identical object files."  So I assume this will only work on .o files?
>
> Wait: are you comparing .o or .a files?  .a files will always have
> lots of differences, because the .a file includes a timestamp.
>
> You should be able to compare the .o files reliably.
>
> Ian
>



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