To pass to opt use '-optlo', e.g.,
$ ghc -fllvm -optlo-adce ...
Its documented in the GHC userguide.
Cheers,
David
On 26 January 2013 02:07, Nathan Hüsken
On 01/26/2013 09:24 AM, Nathan Hüsken wrote:
On 01/25/2013 05:45 PM, Simon Marlow wrote:
On 25/01/13 16:35, Simon Marlow wrote:
On 25/01/13 15:51, Stephen Paul Weber wrote:
Somebody claiming to be Simon Marlow wrote:
On 25/01/13 13:58, Nathan Hüsken wrote: > A simple hello world application has 1Mb in by 64 bit ubunut machine. > When I stript it, is has about 750kb. > When I build a cross compiler for android (arm), the executable has a > asize of about 10MB, stripped about 5MB. > > That is huge, five times the size on my linux sysem.
Not sure what you mean by "five times the size on my linux system". What is 5 times larger than what?
He's saying that the size of the android executable (made by his cross compiler) is five time the sive of the equivalent Ubuntu executable (made by, I assume, his system's GHC).
Yes, exactly. Sorry for my bad phrasing.
The problem is not the size, but the size ratio.
Ah, I see. Yes, my executables are a similar size. I'm not sure why, I'll try to look into it.
It's just the lack of SPLIT_OBJS. Also, unregisterised accounts for a factor of 1.5 or so.
What exactly does SPLIT_OBJS do? Is there a chance to get it working for cross platform? There must be a lot of unused code in the exectuable. Is there no way to remove it? 5 Mb is rather large for an android app.
Maybe it would help to pass parameters like "-adce" or "-globaldce" to opt (from llvm). But I can not figure out how I can tell ghc to pass these parameters. Someone knows?
Regards, Nathan
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