Why does building modules from source make them so huge?
Rick Stevens
rstevens at vitalstream.com
Fri Jan 14 23:56:18 UTC 2005
Dave Jones wrote:
> On Fri, Jan 14, 2005 at 11:49:05AM -0800, Rick Stevens wrote:
> > Gang,
> >
> > This is a really silly question, but when building kernels from the
> > source RPMs (it'd be nice if we had the old RHL-style "kernel-source"
> > RPMs, but one must do what one must do), what is the magic flag to
> > include to make the modules NOT have the whole symbol table included?
> >
> > As distributed, the binary kernel RPM module suite is something like
> > 55MB. If you build it from source and do a "make modules_install", the
> > modules suck up over 200MB. Running "strip" on any given module gets it
> > down to a reasonable size, but it doesn't match the size of the one
> > included in the binary RPM.
> >
> > I'm obviously missing something here.
>
> The rpmbuild process strips the debug data out of the module and
> puts into a seperate debuginfo package. (Ever wonder why they were
> so huge?)
>
> For local builds, I'd recommend turning off the CONFIG_DEBUG_INFO option
> unless you're going to need it.
That was the magic bullet, Dave. Thanks.
Funny that I didn't catch that.
# echo `who_smarter rick box_of_rocks`
box_of_rocks
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- Rick Stevens, Senior Systems Engineer rstevens at vitalstream.com -
- VitalStream, Inc. http://www.vitalstream.com -
- -
- We are born naked, wet and hungry. Then things get worse. -
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