Ok - I'll put up a machine in a DMZ sometime later today (RPi just arrived by 
post) .

I'll make it available on an non-standard ssh port - I suggest access via 
ssh-key only.

If you want to email me the appropriate line for .ssh/authorizedkeys please do. 
If you want to encrypt it with gpg, that's fine - use key id FF677414 
(neil.dav...@pnsol.com)

Neil


On 15 Jan 2013, at 17:16, Karel Gardas <karel.gar...@centrum.cz> wrote:

> 
> Well, if you make some board available in DMZ I'm certainly interested to run 
> at least configure on it from GHC HEAD to see what we need to hack in order 
> to add support for RPi into GHC HEAD.
> 
> Unfortunately GHC HEAD is now in a wrong state w.r.t. LLVM based build, but 
> Austin is working on this. I think I can hack support for RPi in the meantime 
> for testing later on fixed GHC HEAD LLVM build...
> 
> Karel
> 
> On 01/15/13 06:07 PM, rocon...@theorem.ca wrote:
>> In theory we could try a couple variations of builds at the same time.
>> But at the moment, I'm running low on ideas on what to try.
>> 
>> I just got the, extensive, raspbian patches for 7.4.1 and I'm going to
>> browse through them when I get time (apt-get source ghc).
>> 
>> On Tue, 15 Jan 2013, Neil Davies wrote:
>> 
>>> Hi - would another RPi (or even 2 from tomorrow another one arriving)
>>> help?
>>> 
>>> I can make them accessible (i.e. in our DMZ) -
>>> 
>>> Neil
>>> 
>>> On 15 Jan 2013, at 16:36, rocon...@theorem.ca wrote:
>>> 
>>>> On Mon, 14 Jan 2013, Thijs Alkemade wrote:
>>>> 
>>>>> Op 14 jan. 2013, om 17:30 heeft rocon...@theorem.ca het volgende
>>>>> geschreven:
>>>>> 
>>>>>> On Thu, 10 Jan 2013, Karel Gardas wrote:
>>>>>> 
>>>>>>> 
>>>>>>> Hmm, are you using Raspbian? I.e. hard-float abi caught my eye in
>>>>>>> case of ARMv6/ARM11 chip here...
>>>>>>> 
>>>>>>> I'm afraid LLVM is not well guided in your case so could you be so
>>>>>>> kind and test if adding -optlc=-mattr=+vfp2 helps? You need to add
>>>>>>> it to your build.mk probably and you will need to rebuild
>>>>>>> everything again...
>>>>>> 
>>>>>> No change with
>>>>>> 
>>>>>> SRC_HC_OPTS = -H64m -Rghc-timing -optc-mfloat-abi=hard
>>>>>> -optc-march=armv6 -optc-mfpu=vfp -optlc=-mattr=+vfp2
>>>>>> GhcStage1HcOpts = -O -fllvm
>>>>>> GhcStage2HcOpts = -O0 -fllvm
>>>>>> GhcLibHcOpts = -O -fllvm
>>>>>> 
>>>>>> I still get the error:
>>>>>> 
>>>>>> ===--- building final phase
>>>>>> make -r --no-print-directory -f ghc.mk phase=final all
>>>>>> LD libraries/ghc-prim/dist-install/build/HSghc-prim-0.3.0.0.o
>>>>>> /usr/bin/ld: error:
>>>>>> libraries/ghc-prim/dist-install/build/cbits/debug.o uses VFP
>>>>>> register arguments,
>>>>>> libraries/ghc-prim/dist-install/build/HSghc-prim-0.3.0.0.o does not
>>>>>> /usr/bin/ld: failed to merge target specific data of file
>>>>>> libraries/ghc-prim/dist-install/build/cbits/debug.o
>>>>>> 
>>>>>> I don't really understand what is going on here. The file
>>>>>> libraries/ghc-prim/dist-install/build/HSghc-prim-0.3.0.0.o doesn't
>>>>>> even exist, so when I manually run /usr/bin/ld I get:
>>>>>> 
>>>>>> $ /usr/bin/ld
>>>>>> libraries/ghc-prim/dist-install/build/HSghc-prim-0.3.0.0.o
>>>>>> /usr/bin/ld: cannot find
>>>>>> libraries/ghc-prim/dist-install/build/HSghc-prim-0.3.0.0.o: No such
>>>>>> file or directory
>>>>>> 
>>>>>> What is make really doing here?
>>>>>> 
>>>>>> My research suggests that this error is a symptom of trying to link
>>>>>> something without the hard-float ABI together with something with a
>>>>>> soft-float ABI. But I don't know where
>>>>>> libraries/ghc-prim/dist-install/build/HSghc-prim-0.3.0.0.o is
>>>>>> coming from.
>>>>> 
>>>>> libraries/ghc-prim/dist-install/build/HSghc-prim-0.3.0.0.o is the
>>>>> output ld was asked to generate. Apparently, some of the input .o
>>>>> files didn't use VFP register arguments, so ld concluded that the
>>>>> output should also not use VFP register arguments. But then ld
>>>>> encountered a .o file that did use VFP register arguments, and threw
>>>>> an error (something in cbits, so probably built with different CFLAGS).
>>>>> 
>>>>> From your flags I'd say you miss -optlc-float-abi=hard. I had it in
>>>>> GhcLibHcOpts, but I'm not sure that is the correct way to ensure it
>>>>> is passed to everything exactly once.
>>>> 
>>>> Okay, I tried:
>>>> 
>>>> SRC_HC_OPTS = -H64m -Rghc-timing -optc-mfloat-abi=hard
>>>> -optc-march=armv6 -optc-mfpu=vfp -optlc=-mattr=+vfp2
>>>> GhcStage1HcOpts = -O -fllvm
>>>> GhcStage2HcOpts = -O0 -fllvm
>>>> GhcLibHcOpts = -O -fllvm -optlc-float-abi=hard
>>>> 
>>>> and I got the same error at a different build step. I'm not sure if
>>>> it is earlier or later.
>>>> 
>>>> It seems still not everything is using the hard-float ABI.
>>>> 
>>>> ===--- building final phase
>>>> make -r --no-print-directory -f ghc.mk phase=final all
>>>> HC [stage 1] utils/hsc2hs/dist-install/build/tmp/hsc2hs
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments, utils/hsc2hs/dist-install/build/Main.o does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> utils/hsc2hs/dist-install/build/Main.o
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments, utils/hsc2hs/dist-install/build/HSCParser.o
>>>> does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> utils/hsc2hs/dist-install/build/HSCParser.o
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> utils/hsc2hs/dist-install/build/DirectCodegen.o does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> utils/hsc2hs/dist-install/build/DirectCodegen.o
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> utils/hsc2hs/dist-install/build/CrossCodegen.o does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> utils/hsc2hs/dist-install/build/CrossCodegen.o
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> utils/hsc2hs/dist-install/build/UtilsCodegen.o does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> utils/hsc2hs/dist-install/build/UtilsCodegen.o
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments, utils/hsc2hs/dist-install/build/Common.o does
>>>> not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> utils/hsc2hs/dist-install/build/Common.o
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments, utils/hsc2hs/dist-install/build/C.o does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> utils/hsc2hs/dist-install/build/C.o
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments, utils/hsc2hs/dist-install/build/Flags.o does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> utils/hsc2hs/dist-install/build/Flags.o
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> utils/hsc2hs/dist-install/build/Paths_hsc2hs.o does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> utils/hsc2hs/dist-install/build/Paths_hsc2hs.o
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(Apply.o) does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(Apply.o)
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(Exception.o) does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(Exception.o)
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(HeapStackCheck.o) does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(HeapStackCheck.o)
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(PrimOps.o) does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(PrimOps.o)
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(StgMiscClosures.o) does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(StgMiscClosures.o)
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(StgStartup.o) does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(StgStartup.o)
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(StgStdThunks.o) does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(StgStdThunks.o)
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(Updates.o) does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(Updates.o)
>>>> /usr/bin/ld: error: utils/hsc2hs/dist-install/build/tmp/hsc2hs uses
>>>> VFP register arguments,
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(AutoApply.o) does not
>>>> /usr/bin/ld: failed to merge target specific data of file
>>>> /tmp/ghc-7.6.1b/rts/dist/build/libHSrts.a(AutoApply.o)
>>>> collect2: ld returned 1 exit status
>>>> <<ghc: 10689448 bytes, 2 GCs, 95944/95944 avg/max bytes residency (1
>>>> samples), 62M in use, 0.00 INIT (0.00 elapsed), 0.81 MUT (9.41
>>>> elapsed), 0.13 GC (0.13 elapsed) :ghc>>
>>>> make[1]: *** [utils/hsc2hs/dist-install/build/tmp/hsc2hs] Error 1
>>>> make: *** [all] Error 2
>>>> 
>>>> --
>>>> Russell O'Connor <http://r6.ca/>
>>>> ``All talk about `theft,''' the general counsel of the American
>>>> Graphophone
>>>> Company wrote, ``is the merest claptrap, for there exists no property in
>>>> ideas musical, literary or artistic, except as defined by statute.''
>>>> 
>>>> _______________________________________________
>>>> Glasgow-haskell-users mailing list
>>>> Glasgow-haskell-users@haskell.org
>>>> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
>>> 
>> 
> 

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