Re: [Haskell-cafe] GHC > 6.8.2 on IA64-Linux platform (Itanium)

Hello Sergei! nice to hear from you! In fact I've been dealing with this issue a little bit and just "fixed" Adjustor issue myself and then just hour before your email came I discovered your excellent gentoo patches! Kudos to zygoloid for his excellent MBlock.h patch! Also you have saved my own time by noting that your patches are already upstream. I've been already thinking about submitting new issue and attaching them there. So I'll just modify platforms wiki and add some notes how to go over IA/Linux ghc 6.8.2 <-> 7.0.1 gab by using gentoo's patches. Thanks! Karel On 01/ 3/11 09:20 PM, Sergei Trofimovich wrote:

On Sun, 02 Jan 2011 18:09:05 +0100 Karel Gardas wrote:

...

I'd like to compile more recent than 6.8.2 GHC on itanium-linux system I do have access to, but I'm kind of unlucky with this. I'm trying unregisterised build (of 6.12.3 and 6.10.4) and it always fails with:

"inplace/bin/ghc-stage2" -H32m -O -package-name dph-base-0.4.0 -hide-all-packages -i -ilibraries/dph/dph-base/. -ilibraries/dph/dph-base/dist-install/build -ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/dist-install/build -Ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/include -optP-include -optPlibraries/dph/dph-base/dist-install/build/autogen/cabal_macros.h -package array-0.3.0.1 -package base-4.2.0.2 -package ghc-prim-0.2.0.0 -package random-1.0.0.2 -Odph -funbox-strict-fields -haddock -fcpr-off -XTypeFamilies -XGADTs -XRankNTypes -XBangPatterns -XMagicHash -XUnboxedTuples -XTypeOperators -O2 -XGenerics -fno-warn-deprecated-flags -Wwarn -odir libraries/dph/dph-base/dist-install/build -hidir libraries/dph/dph-base/dist-install/build -stubdir libraries/dph/dph-base/dist-install/build -hisuf hi -osuf o -hcsuf hc -c libraries/dph/dph-base/./Data/Array/Parallel/Base/Hyperstrict.hs -o libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/Hyperstrict.o ghc-stage2: internal error: evacuate: strange closure type 15 (GHC version 6.12.3 for ia64_unknown_linux) Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug make[1]: *** [libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/Hyperstrict.o] Aborted make: *** [all] Error 2

[snip]

...

I've also seen, the last available GHC in Debian for IA64 platform is 6.8.2 -- which I'm using for bootstrap btw so debian will not help me here with some clever patch which would change recent ghc to be buildable...

So, I'd like to ask here: is there anybody who was lucky enough to find appropriate set of options or any other magic way how to compile more recent GHC sources to the _stable_ compiler binary on IA64/Linux? If so, please let me know.

Hello Karel! You have hit a nasty Garbage Collector bug in ghc. I (re)discovered it some months ago too. There is yet some patches to make stuff work on ia64. I think it will be simpler for you to get gentoo's ia64 binaries (unregisterised) and bootstrap ghc-HEAD yourself.

http://code.haskell.org/~slyfox/ghc-ia64/ghc-bin-6.12.3-ia64-haddock.tbz2 http://mirrors.kernel.org/gentoo/distfiles/ghc-bin-6.12.3-ia64-haddock.tbz2

We, gentoo, apply patches for ghc-6.12.3 to make magic happen (all gone upstream and ghc-7.0/ghc-7.0.1)

http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/dev-lang/ghc/files/

In case you will decide to bootstrap stable ghc-6.12.3 the following patches should suffice.

== required patches ==

* GC patch (the critical one, fixes bug you have posted) http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/dev-lang/ghc/files/ghc-6.12.3-ia64-storage-manager-fix.patch?revision=1.1&view=markup

* you need to pass -G0 to gcc when you build ghc. Gentoo does it in a special manner: we add the following to mk/build.mk: SRC_HC_OPTS += -optc-G0 Your approach might be different. It solves known(?) limitation of small object's section size.

== nice to have patches ==

* remove crufty linker flags in order to able to link ghc on recent binutils http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/dev-lang/ghc/files/ghc-6.12.3-ia64-fixed-relax.patch?revision=1.1&view=markup

* f.i.w calls on ia64 (fixes terminfo and thus interactive darcs, otherwise it will SIGSEGV) http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/dev-lang/ghc/files/g...

* If you plan to build haddock using unregistered ghc you'll need one more patch to export needed API (backported from -HEAD). http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/dev-lang/ghc/files/ghc-6.12.3-ghciless-haddock-3558.patch?revision=1.1&view=markup

Good luck!