the patches add -march and -mtune keywords + new instructions + improved instruction scheduling. based on the patches from june2003 stream, modified to apply cleanly against the gcc-3.3.3 ebuild. Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 29332 [details, diff] june2003 stream patch
jochen, I think we have a problem with this bug. Our only dev (iggy) that even had access to a s390 to test anything is no longer with the gentoo project to the best of my knowledge.
Randy does s390 stuff.
at least randy, beejay, tantive, and daq4th have access to s390 afaik. Anyway, the patch only touches s390 specific stuff - I recompiled my whole system with it and it works. Oh, and if I'm not mistaken, I'm to only one with a complete gentoo system on s390 at the moment, so you probably have to trust my statements whether something works or not :-P
I've got to working Gentoo s390 systems. I can't test to see if this one actually works though, I've only got a Z800.
Ok I just checked the s390@g.o alias and indeed randy@g.o is the only guy on it. QA problem here. If we can't exactly test s390 support then really it should not be an arch that we support. If however somebody can make access available to a larger number of developers for such things as testing patches, stage rolling and pushing forward new development then the previous statement would not apply.
I can give devs access to a system within the next two weeks. I just don't have access to a Z990 processor so I can't test to see if it works. I'm not sure how famialiar you are with the s390 arch but there are a couple of processors that are s390 procs such as the z800,z900, and z990. It's simialar to Athlon-Xp etc for the x86 architecture.
that's the chicken - egg problem if you don't accept patches before you test them, nobody can provide a box for developers, because the software just doesn't work yet. Anyway, this gcc patch isn't exactly essential, it's just "nice to have" if you're running on z990 f.e. gcc-3.4 supports this stuff anyway. If you feel uncomfortable with this patch, you can wait as well until the first boxes are up and running... shouldn't take long now anymore - basically just docs, kernel patches + some minor tweaks to /etc files missing now
Michael, Thank you for the making the correlation for between z800,z900, and z990 processors. jochen, Indeed it's a chicken & egg game. Anyway good news for z990 users then gcc-3.4 has just been released. ftp://gcc.gnu.org/pub/gcc/releases/gcc-3.4.0/gcc-3.4.0.tar.bz2 I've rolled a new gcc-3.3.3-patches-1.1 tarball and made a few minor changes in the gcc-3.3.3-r2.ebuild. Current it's all package.masked so you will have to unmask. You can begin testing it by doing. mkdir -p /etc/portage/ echo =sys-devel/gcc-3.3.3-r2 >> /etc/portage/package.unmask ACCEPT_KEYWORDS="~s390" emerge -e system Please report success/failure. A -* masked version also exists of a recent snapshot for 3.4 and it will updated to be gcc-3.4.ebuild as soon as a few extensions are available upstream.
Sorry that KEYWORD is actually just s390, iggy tells me there is no ~s390 KEYWORD at this time.
appears to work... I'm in the middle of emerge -e world right now, but all base packages are already rebuilt
