Re: Mandatory -dbg packages for libraries?
On Mon, Apr 23, 2007 at 11:28:06PM +1000, Hamish Moffatt <hamish@debian.org> wrote:
> On Mon, Apr 23, 2007 at 07:38:15AM +0200, Mike Hommey wrote:
> > On Sun, Apr 22, 2007 at 08:26:38PM -0400, Joey Hess <joeyh@debian.org> wrote:
> > > Mark Brown wrote:
> > > > I'd be interested to see some numbers on the archive size impact - my
> > > > experience with C++ suggests that the size inflation caused by debug
> > > > symbols can be enormous.
> > >
> > > I don't know about C++, but for C it depends. For example, aalib is a
> > > 102 kb library that compresses to 44kb. Its debug symbols are 234 kb and
> > > compress to 65 kb.
> > >
> > > OTOH, people rarely need full debugging information for aalib, it's
> > > probably plenty to see its functions in the backtrace, and not have line
> > > number info (bear in mind that line number info includes effectively the
> > > entire source code of the program). So it I build it with -g1, the
> > > debug symbols size drops to 48 kb and compresses to 14 kb.
> >
> > Except that -g1 drops line numbers...
>
> Wasn't that Joey's point?
The point is that it's pretty useless to have a backtrace without line
numbers. It would be interesting if there was an option similar to -g1,
but that would keep the line numbers (without the burden of keeping the
whole source code)
Mike
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