Please keep in mind that gold is ELF-only, so it cannot be used to link on
Win32.
Thus, linking KDE with gold must stay an option and shouldn't become the
default (at least until other binary formats are implemented in gold)
-Michael
-Original Message-
From: Andreas Hartmetz [mailto:[EMAIL PROTECTED]
Sent: Monday, April 14, 2008 12:09 AM
To: kde-buildsystem@kde.org
Subject: The gold linker and KDE
Hi all,
I am one of the few KDEers who tried to link KDE4 using the
upcoming linker in
GNU binutils called gold. gold fails if it encounters an
unimplemented
option (I guess it should ignore some less important ones
instead) and it
seems to be less forgiving when given an incomplete list of required
libraries. The upside is that in pure link time gold is
reportedly 5 to 6
times faster than the old ld.
We obviously want to use gold at some point, right? :)
I worked around the unknown options problem by hacking the
gold options
parser. In kdebase I added libdl to nspluginviewer's
libraries. After that
kdesupport, kdelibs, kdepimlibs and kdebase compiled and
linked. When running
the resulting binaries, however, knotify4 crashed every time
it tried to play
a sound because, apparently, the loading of phonon's xine
backend failed.
pusling on #kde-devel suggested that the xine backend itself
might not be
linked properly.
Can you guess what might go wrong here? Ideally somebody who
knows linking and
the build system very well would try to link KDE with gold
and fix everything
necessary to make it work... I think that the gold maintainer
will also fix
obvious bugs quickly when asked.
Another strange behavior (for the uninitiated) is that
setting the linker to
gold using ccmake will not have any effect. Maybe this is
because gcc/g++
will be used as the frontend to ld and you can't really tell
it which linker
to use? This matters becaues just copying gold over ld will
break compilation
of KDE3 and probably many other applications which seem to
have sloppy
dependency lists.
Cheers,
Andreas
--
- Flint Paper's office is piled high with shot-up criminals
and the walls are
riddled with bullet holes and he's kissing a beautiful
woman right on the
mouth!
- Wonder if the munsters are on yet?
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