[Haskell-iPhone] Can anyone help me test GHC-iOS compiler?
Luke Iannini
lukexipd at gmail.com
Sun Aug 11 09:06:25 CEST 2013
OK! So just to summarize:
Building GHC HEAD with LLVM 3.0 or 3.2 (using GHC 7.6.3 as the bootstrap)
on OS X 10.9 DP5/Xcode 5 DP5 exhibits very strange behavior wherein
layout-based code along with mixed-tabs-and-spaces code fails to parse
correctly, with issues in hundreds of files in the GHC HEAD tree.
I don't have a 10.8 machine to check if this is a 10.9 exclusive issue, so
I'd love if someone can try using these binaries to build GHC HEAD:
http://llvm.org/releases/3.0/clang+llvm-3.0-x86_64-apple-darwin11.tar.gz
Building GHC HEAD with LLVM 3.3 or 3.4 works great as a regular compiler
with the 10.9 workarounds I outlined in another thread, but fails when
compiling as a cross-compiler (./configure --target=arm-apple-darwin10)
with these errors:
https://gist.github.com/lukexi/2b129f34fa027172c5ee
So I'm between a rock and a hard place at the moment.
The only (very tedious and slow) workaround I've found for the 3.0/3.2 bug
is to manually expand tabs to spaces, and to transform
do x
y
into
do
x
y
(similarly for where and let blocks)
Cheers
Luke
On Sun, Aug 11, 2013 at 1:53 AM, Luke Iannini <lukexipd at gmail.com> wrote:
> Argh, sorry for the confusion: 3.2 *does* exhibit the issue. 3.3 and 3.4
> do not.
>
>
> On Sun, Aug 11, 2013 at 1:39 AM, Luke Iannini <lukexipd at gmail.com> wrote:
>
>> Further investigation:
>>
>> I grabbed 7.6.3 just to see if I somehow had a bad install of GHC, but
>> the problem still occurred.
>>
>> The problem only occurs with LLVM 3.0.
>>
>> It is not related to cross-compilation or Stephen's patches: I tested
>> this on multiple fresh clones with --with-gcc=clang.
>>
>> LLVM 3.2, 3.3 and 3.4 do not exhibit the issue.
>>
>> If anyone wants to try to reproduce, you can grab the LLVM 3.0 binaries
>> here Clang Binaries for MacOS X/x86-64<http://llvm.org/releases/3.0/clang+llvm-3.0-x86_64-apple-darwin11.tar.gz> and
>> just drop them in your path.
>>
>> (Stephen, I'm now trying your patch with LLVM 3.2)
>>
>> Cheers
>> Luke
>>
>>
>> On Sat, Aug 10, 2013 at 8:11 PM, Luke Iannini <lukexipd at gmail.com> wrote:
>>
>>> The first error on a fresh checkout is
>>>
>>> "/usr/local/bin/ghc" -hisuf hi -osuf o -hcsuf hc -static -H32m -O
>>> -package-db libraries/bootstrapping.conf -hide-all-packages -i
>>> -iutils/hsc2hs/. -iutils/hsc2hs/dist/build
>>> -iutils/hsc2hs/dist/build/autogen -Iutils/hsc2hs/dist/build
>>> -Iutils/hsc2hs/dist/build/autogen -optP-include
>>> -optPutils/hsc2hs/dist/build/autogen/cabal_macros.h -package base-4.6.0.1
>>> -package containers-0.5.0.0 -package directory-1.2.0.1 -package
>>> filepath-1.3.0.1 -package process-1.1.0.2 -XHaskell98 -XCPP
>>> -XForeignFunctionInterface -no-user-package-db -rtsopts -odir
>>> utils/hsc2hs/dist/build -hidir utils/hsc2hs/dist/build -stubdir
>>> utils/hsc2hs/dist/build -c utils/hsc2hs/./C.hs -o
>>> utils/hsc2hs/dist/build/C.o
>>>
>>>
>>> utils/hsc2hs/C.hs:155:3:
>>>
>>> parse error (possibly incorrect indentation or mismatched brackets)
>>>
>>>
>>> There seem to be two classes of error: one is the layout issue above,
>>> but other files can be fixed by simply running 'expand' on them.
>>>
>>>
>>> On Sat, Aug 10, 2013 at 6:42 PM, Luke Iannini <lukexipd at gmail.com>wrote:
>>>
>>>> Hi Stephen/all,
>>>>
>>>> I got LLVM 3.0 installed and started building again but hit a very
>>>> strange problem now wherein tons of layout-based code (as in
>>>> http://en.wikibooks.org/wiki/Haskell/Indentation) is suddenly erroring
>>>> out, e.g.
>>>> compiler/coreSyn/CoreUnfold.lhs:481:2:
>>>> parse error (possibly incorrect indentation or mismatched brackets)
>>>> (some files also seem to be triggered by mixed tabs and spaces)
>>>>
>>>> I can fix the errors one by one by converting the code to use more
>>>> concrete indentation (like
>>>> do
>>>> thing1
>>>> thing2
>>>> )
>>>> but it's all over the tree.
>>>>
>>>> Anyone have any idea what might cause this?
>>>>
>>>> Cheers
>>>> Luke
>>>>
>>>>
>>>> On Fri, Aug 9, 2013 at 6:14 AM, Stephen Blackheath [to GHC-iPhone] <
>>>> likeliest.complexions.stephen at blacksapphire.com> wrote:
>>>>
>>>>> Luke,
>>>>>
>>>>> Try llvm version 3.0 - that's what I'm using, and it definitely worked
>>>>> before. llvm-3.1 is broken for GHC+ARM. As for llvm >= 3.2, I'm not sure if
>>>>> it's been fixed yet, but it wasn't working last time I tried a couple of
>>>>> months ago. I think this was because llvm is getting fussier about its
>>>>> input and GHC hasn't been "tightened up" yet.
>>>>>
>>>>> It's really easy to build llvm from source.
>>>>>
>>>>>
>>>>> Steve
>>>>>
>>>>>
>>>>> On 09/08/13 20:35, Luke Iannini wrote:
>>>>>
>>>>>> v3 output: https://gist.github.com/**lukexi/7ca55b36269703236f1f<https://gist.github.com/lukexi/7ca55b36269703236f1f>
>>>>>>
>>>>>>
>>>>>> On Fri, Aug 9, 2013 at 4:34 AM, Luke Iannini <lukexipd at gmail.com
>>>>>> <mailto:lukexipd at gmail.com>> wrote:
>>>>>>
>>>>>> OK, that got me past that one.
>>>>>>
>>>>>> Now I'm stuck here during compilation of integer-simple:
>>>>>> https://gist.github.com/**lukexi/d9f8bfd8bca56d5d0ee9<https://gist.github.com/lukexi/d9f8bfd8bca56d5d0ee9>
>>>>>>
>>>>>> ("unsupported relocation on symbol"/"co-processor offset out of
>>>>>> range")
>>>>>>
>>>>>>
>>>>>> On Fri, Aug 9, 2013 at 4:00 AM, Luke Iannini <lukexipd at gmail.com
>>>>>> <mailto:lukexipd at gmail.com>> wrote:
>>>>>>
>>>>>> OK, I'm underway on this.
>>>>>>
>>>>>> First roadbump was:
>>>>>>
>>>>>>
>>>>>> "inplace/bin/ghc-stage1" -static -H32m -O -Iincludes
>>>>>> -Iincludes/dist -Iincludes/dist-**derivedconstants/header
>>>>>> -Iincludes/dist-ghcconstants/**header -Irts -Irts/dist/build
>>>>>> -DCOMPILING_RTS -package-name rts -dcmm-lint -i -irts
>>>>>> -irts/dist/build -irts/dist/build/autogen -Irts/dist/build
>>>>>> -Irts/dist/build/autogen -O2 -c rts/Apply.cmm -o
>>>>>> rts/dist/build/Apply.o
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> You are using a new version of LLVM that hasn't been tested
>>>>>> yet!
>>>>>> We will try though...
>>>>>> /usr/local/bin/llc: : error: unable to get target for
>>>>>> 'arm-apple-darwin10', see --version and --triple.
>>>>>>
>>>>>>
>>>>>> which I figured out were because the homebrew LLVM 3.4 only
>>>>>> includes host platforms by default (x86/x86-64)
>>>>>> Reinstalling it with all-targets enables them all:
>>>>>> brew install llvm --with-clang --all-targets --HEAD
>>>>>>
>>>>>> Trying again now.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Thu, Aug 8, 2013 at 5:29 PM, Luke Iannini <
>>>>>> lukexipd at gmail.com
>>>>>> <mailto:lukexipd at gmail.com>> wrote:
>>>>>>
>>>>>> Update: I've got GHC HEAD building on 10.9 again, tonight
>>>>>> I'll dive into the iOS patch!
>>>>>> Cheers
>>>>>> Luke
>>>>>>
>>>>>>
>>>>>> On Wed, Aug 7, 2013 at 9:12 PM, Carter Schonwald
>>>>>> <carter.schonwald at gmail.com
>>>>>> <mailto:carter.schonwald@**gmail.com<carter.schonwald at gmail.com>>>
>>>>>> wrote:
>>>>>>
>>>>>> if you're on 10.8, just DL the 4.6 CLI tools to get
>>>>>> things working again.
>>>>>>
>>>>>> If you're on 10.9, you'll need to use recent GHC head
>>>>>> +
>>>>>> CLANG HEAD, (ok, the most recent XCODE 5 dev preview
>>>>>> CLI
>>>>>> tools may have all the needed clang patches, but thats
>>>>>> still needing its own validation, orthogonal to the
>>>>>> IOS
>>>>>> related issues )
>>>>>>
>>>>>>
>>>>>> On Tue, Aug 6, 2013 at 7:06 PM, Luke Iannini
>>>>>> <lukexipd at gmail.com <mailto:lukexipd at gmail.com>>
>>>>>> wrote:
>>>>>>
>>>>>> Hi Stephen,
>>>>>>
>>>>>> I installed 10.9 for another project and thus am
>>>>>> in
>>>>>> the middle of fixing up my system to be able to
>>>>>> build GHC again, but I think I'm close — as soon
>>>>>> as
>>>>>> I have it going I'll try this.
>>>>>>
>>>>>> In the meantime someone still on 10.8 should
>>>>>> definitely try the patch!
>>>>>>
>>>>>> Hope you're great!
>>>>>> Luke
>>>>>>
>>>>>>
>>>>>> On Tue, Aug 6, 2013 at 6:42 PM, Stephen Blackheath
>>>>>> [to GHC-iPhone]
>>>>>> <likeliest.complexions.**
>>>>>> stephen at blacksapphire.com<likeliest.complexions.stephen at blacksapphire.com>
>>>>>> <mailto:likeliest.complexions.**
>>>>>> stephen at blacksapphire.com<likeliest.complexions.stephen at blacksapphire.com>
>>>>>> >>
>>>>>>
>>>>>> wrote:
>>>>>>
>>>>>> Hi all,
>>>>>>
>>>>>> A couple of months ago I got some patches
>>>>>> applied to GHC mainline for the ability to
>>>>>> cross
>>>>>> compile to iOS. I've been doing other things
>>>>>> and
>>>>>> now I want to test those changes. The trouble
>>>>>> is, I am having Apple trouble and I can't get
>>>>>> Xcode to work.
>>>>>>
>>>>>> If anyone is interested in testing it for me,
>>>>>> I'd appreciate it.
>>>>>>
>>>>>> The patch attached here needs to be applied to
>>>>>> GHC head. Using this, I was able to get the
>>>>>> cross compiler to build. The instructions are
>>>>>> here:
>>>>>>
>>>>>> http://ghc.haskell.org/trac/__**
>>>>>> ghc/wiki/Building/__**CrossCompiling/iOS<http://ghc.haskell.org/trac/__ghc/wiki/Building/__CrossCompiling/iOS>
>>>>>>
>>>>>> <http://ghc.haskell.org/trac/**
>>>>>> ghc/wiki/Building/**CrossCompiling/iOS<http://ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling/iOS>
>>>>>> >
>>>>>>
>>>>>>
>>>>>> Steve
>>>>>>
>>>>>> ______________________________**
>>>>>> _________________
>>>>>> iPhone mailing list
>>>>>> iPhone at haskell.org <mailto:iPhone at haskell.org
>>>>>> >
>>>>>>
>>>>>> http://www.haskell.org/**
>>>>>> mailman/listinfo/iphone<http://www.haskell.org/mailman/listinfo/iphone>
>>>>>>
>>>>>>
>>>>>>
>>>>>> ______________________________**_________________
>>>>>> iPhone mailing list
>>>>>> iPhone at haskell.org <mailto:iPhone at haskell.org>
>>>>>> http://www.haskell.org/**mailman/listinfo/iphone<http://www.haskell.org/mailman/listinfo/iphone>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>
>>>
>>
>
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