[Haskell-iPhone] Fat binaries on iOS Target

[Carter Schonwald]

Woah! Jumping into cross compiling as your way to start learning Haskell?
That's pretty awesome.   Please continue to share any problems you may
have, it's always possible that it could be a bug!

On Wednesday, December 25, 2013, Joe wrote:

> Hi Carter,
>
> Sure! Just added new ticket #8629<https://ghc.haskell.org/trac/ghc/ticket/8629>
> .
>
> As for inlining, I think i’ll start learning haskell first before jumping
> into modifying the code :). Hopefully either split-objs, executable or
> other some other idea to reduce binary size could be found very soon.
>
> Thanks for helping.
>
> Best regards,
> Joe
>
> On Dec 25, 2013, at 10:14 PM, Carter Schonwald <carter.schonwald at gmail.com<javascript:_e({}, 'cvml', 'carter.schonwald at gmail.com');>>
> wrote:
>
> Huh.  Could you write up a ticket on trac?  This could be considered a bug
> in cross compilation.  Explain that you're trying to make sure the object
> code for iOS is small.
>
> @luke, are there any tricks for managing object size you've done
>
> There are some ideas to reduce object size for ghc 7.10, but that doesn't
> help you write now.
>
>
> @Joe: one idea could be to mess with the ghc flags that relate to
> Inlining.  Reducing the amount of Inlining may help with object size, BUT
> may make things slower.  I don't recall what the relevant ghc flags are off
> hand. You'd have to do some digging.
>
>
>
> On Wednesday, December 25, 2013, Joe wrote:
>
>> Hi Carter,
>>
>> When I have added “split-objs: True” in .cabal/config file, but when
>> running cabal I got this message:
>>
>> Preprocessing library pandoc-1.12.2.1...
>> unused terminals: 1
>>
>> on the commandline: Warning: ignoring -fsplit-objs
>>
>> And if I ignore that, at the end of build, I get another error message
>> that stop the build.
>>
>> cabal: dist-i386/build/Text/Pandoc_o_split: does not exist
>>
>> It seems that split-objs cannot work with cross-compilation ghc.
>>
>> What do you think?
>>
>> Best regards,
>> Joe
>>
>> On Dec 25, 2013, at 8:46 PM, Carter Schonwald <carter.schonwald at gmail.com>
>> wrote:
>>
>> You need to make sure every lib is built with split objs, not just the
>> final application.  Did you try it that way?   You could also try to limit
>> the amount of Inlining in your application too
>>
>> On Wednesday, December 25, 2013, Joe wrote:
>>
>>> Hi,
>>>
>>> I’m asking similar question on haskell-cafe group, but I think it’s more
>>> appropriate to ask here since it’s iPhone related. Please forgive my double
>>> post.
>>>
>>> I have been trying to statically link Pandoc packages to iOS application
>>> and I want to say that what have been done so far as explained in
>>> https://ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling/iOS is
>>> great! I have finally successfully use Pandoc library in iOS app, but
>>> there’s an issue that the final app binary is *more than 50MB* when
>>> using Pandoc library. It’s around 5MB for simple haskell library. And
>>> without using Haskell, it’s around 100kb.
>>>
>>> Is it possible to strip the executable binary? I read that stripping is
>>> not possible using xcode strip. I also try to add -split-objs flag, but
>>> it’s not working either.
>>>
>>> Any idea? Is this a known issue?
>>>
>>> Thanks for making Haskell work on iOS!
>>>
>>> Best regards and merry christmas,
>>> Joe
>>>
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/iphone/attachments/20131225/439d1061/attachment.html>